telwin 111 repair
20
cod. 988651 TECNICA 140.1 - 142 inverter TECNICA 111 CONTENTS PAGE OPERATION AND WIRING DIAGRAMS................ 2 Block diagram 2 Analysis of the block diagram 3 Illustrations 5 Wiring diagrams 6 REPAIR GUIDE...................................................... 9 Equipment required 9 General repair instructions 10 Troubleshooting and remedies 10 Testing the machine 13 Illustrations 15 SPARE PARTS LIST ...............................................17 REPAIR SHEET ...................................................... 19 TROUBLESHOOTING AND REPAIR MANUAL TROUBLESHOOTING AND REPAIR MANUAL TROUBLESHOOTING AND REPAIR MANUAL TROUBLESHOOTING AND REPAIR MANUAL “reparation no problem !”
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telwin 111 repair maual
Transcript of telwin 111 repair
cod. 988651
TECNICA 140.1 - 142inver ter
TECNICA 111
CONTENTS PAGE
OPERATION AND WIRING DIAGRAMS................ 2 Block diagram 2 Analysis of the block diagram 3 Illustrations 5 Wiring diagrams 6
REPAIR GUIDE...................................................... 9 Equipment required 9 General repair instructions 10 Troubleshooting and remedies 10 Testing the machine 13 Illustrations 15
SPARE PARTS LIST...............................................17
REPAIR SHEET......................................................19
TROUBLESHOOTING
AND REPAIR MANUAL
TROUBLESHOOTING
AND REPAIR MANUAL
TROUBLESHOOTING
AND REPAIR MANUAL
TROUBLESHOOTING
AND REPAIR MANUAL
“reparation no problem !”
TECNICA 111
- 2 -
61
7
22
CU
RR
ENT
PO
TEN
TIO
MET
ER
26
11
AL
IME
NTA
TOR
EFL
Y-B
AC
K
1315
SEP
AR
ATO
RTR
AN
SFO
RM
ER
2829
24
16TR
AN
SFO
RM
ERP
ILO
T
1819A
DD
ER
20AL
AR
M C
LO
CK
23
45
889
17
14
10
12AU
XIL
IAR
Y P
OW
ERS
UP
PLY
TR
IGG
ER
11VO
LTA
GE
REC
TIFI
ER
21
27
t
25SEC
ON
DA
RY
DIO
DE
TH
ER
MO
STA
T
23
BLOCK DIAGRAM
OPERATION AND WIRING DIAGRAMSOPERATION AND WIRING DIAGRAMSOPERATION AND WIRING DIAGRAMSOPERATION AND WIRING DIAGRAMS
OU
TPU
TC
UR
REN
TTR
AN
SFO
RM
ERIN
DU
CTA
NC
EEM
C F
ILTE
R I
I°
PR
IMA
RY
EM
C F
ILTER
PO
WER
TRA
NS
FOR
MER
SEC
ON
DA
RY
DIO
DES
FILT
ER
CH
OP
PE
RR
EC
TIF
IER
BR
IDG
EP
RE-C
HA
RG
EIN
PU
T
FAN
PO
WER
SU
PP
LYL
ED
AU
XIL
IAR
Y P
OW
ERS
UP
PLY
DR
IVER
ALA
RM
LE
DP
RIM
AR
Y C
UR
REN
TR
EAD
ER A
ND
LIM
ITER
MA
XIM
UM
CU
RR
EN
T A
DJU
ST.
DU
TY C
YC
LEM
AK
ER
OV
ER
VO
LA
TGE
SEF
EGU
AR
D
THER
MO
STA
TSG
ALV
AN
ICS
EP
AR
AT
OR
PO
WER
TRA
NS
FOR
MER
THER
MO
STA
T
- 3 -
ANALYSIS OF THE BLOCK DIAGRAM
NOTE: Unless indicated otherwise, it should be assumed that the components are assembled on the power board.
Block 1EMC FilterConsisting of: C1, T4, C8, C15.Prevents noise from the machine from being transmitted along the main power line and vice versa.
Block 2Pre-chargeConsisting of: PD1, R4.Prevents the formation of high transitory currents that could damage the main power switch, the rectifier bridge and the electrolytic capacitors. When the power source is switched on the relay PD1 is de-energised, capacitors C21, C22, C27 are then charged by R4. When the capacitors are charged the relay is energised.
Block 3Rectifier bridgeConsisting of: PD1.Converts the mains alternating voltage into continuous pulsed voltage.
Block 4FilterConsisting of: C21, C22, C27.Converts the pulsed voltage from the rectifier bridge into continuous voltage.
Block 5ChopperConsisting of: Q5, Q8.Converts the continuous voltage from the filter into a high frequency square wave capable of piloting the power transformer. Regulates the power according to the required welding current/voltage.
Block 6Current transformerConsisting of: T2.The C.T. is used to measure the current circulating in the power transformer primary and transmit the information to block 17 (primary current reader and limiter).
Block 7Power transformerConsisting of: T3.Adjusts the voltage and current to values required for the welding procedure. Also forms galvanic separation of the primary from the secondary (welding circuit from the power supply line).
Block 8Secondary diodesConsisting of: D33, D34 .D33 converts the current circulating in the transformer to a single direction, preventing saturation of the nucleus.D34 recirculate the inductance output current (block 9) when the IGBT's are not conducting, bypassing the power transformer (block 7).
(No C22 on 230V version of Tecnica 111)
Block 9InductanceConsisting of: L1.Levels the secondary board diodes’ output current making it practically continuous.
Block 10Secondary EMC FilterConsisting of: C28, C33.Prevents noise from the power source from being transmitted through the welding cables and vice versa.
Block 17Primary current reader and limiterConsisting of: D2, R25.Reads the signal from block 6 (current transformer) and scales it down so it can be processed and compared in blocks 18 and 19.
Block 11Voltage rectifierConsisting of: D11,C18Rectifies and filters the voltage from the tertiary winding of the power transformer (block 7).
Block 12Auxiliary power supply triggerConsisting of: R18, R35, C20Via the resistors, the power source supplies the necessary voltage to power block 13 (power supply).
Block 13Auxiliary power supplyConsisting of: U3, C17Stabilises the voltage at 12Vdc for the power arriving from block 12 (auxiliary power supply trigger) and from block 11 (voltage rectifier).
Block 14DriverConsisting of: Q6, D19, D23, Q7, D27, D26Picks up the signal arriving from block 15 (separator transformer) and under the control of block 17 (transformer pilot) adjusts it to suit piloting of block 5 (chopper).
Block 15Separator transformerConsisting of: T1Supplies two signals, which are separated galvanically from one another, that will be sent to power block 14 (driver).
Block 16Transformer PilotConsisting of: Q4, D20, D22, D24Amplifies the signal arriving from block 18 (duty cycle maker), needed to pilot block 15 (separator transformer).
TECNICA 111
- 4 -
Block 25Secondary diode thermostatConsisting of: ST1When the temperature of the secondary diode dissipator reaches a given temperature the thermostat cuts in, sending an alarm signal to block 26 (galvanic separation). It is reset automatically when this alarm condition is no longer present.
Block 26Galvanic separationConsisting of: ISO1The signal arriving from blocks 24 and 25 (power transformer thermostat and secondary diodes) is separated galvanically and sent to block 20 (alarms) for detection of a possible alarm event.
Block 27Overvoltage safeguardConsisting of: R1, R5, R14, R19, R24, R29, R36, R38.If the main supply voltage exceeds the maximum value this safeguard triggers (a tolerance of approx. ±15% of the power supply voltage is allowed: outside this range the safeguard triggers).
Block 28Power supply LEDConsisting of: D10.Indicates when the power source is correctly powered and ready for use.
Block 29FanConsisting of: V1.Powered directly by block 13 (flyback transformer) and cools the power components.
Block 18Duty cycle makerConsisting of: U1.Processes the information from block 19 (adder) and block 17 (primary current reader and limiter) and produces a square wave with variable duty cycle limiting the primary current to a maximum pre-set value under all circumstances.
Block 19AdderConsisting of: U2C.Gathers all the information from block 17 (primary current reader and limiter), from block 20 (alarms) and from block 22 (current potentiometer), and produces a signal with a suitable voltage for processing by block 18 (duty cycle maker).
Block 20Alarm BlockConsisting of: Q3, U2A, U2B.When an alarm is detected the power source output current is drastically reduced by making direct adjustments to block 18 (duty cycle maker) and directly changing the reference signal obtained from block 22 (current potentiometer).
Block 21Alarm LED Consisting of: D12.It is switched on by block 20 (alarms) in the event of:1) Triggering of thermostatic capsule/thermostat on power
transformer.
3) Triggering due to overvoltage.4) Short circuit at output (electrode holder clamp and earth
cable connected to one another or electrode stuck to piece being welded).
Block 22Current potentiometerConsisting of: 23.This is used to set the reference voltage needed to adjust the output current: when the potentiometer knob is turned the cursor voltage varies, thus varying the current from the minimum to the maximum value.
Block 23Maximum current adjustmentConsisting of: R2.Used to adjust the maximum cutting current to be supplied by the power source.
Block 24Power transformer thermostatConsisting of: ST2.When the temperature of the power transformer is too high, this safeguard is triggered. It is reset automatically after the alarm condition has ceased.
2) Triggering of thermostatic capsule on secondary diodes.
TECNICA 111
- 5 -
Power boad
(14)DRIVER
(5)CHOPPER
(23)MAX CURRENTREGULATION
(4)FILTER
(18)CURRENT
POTENTIOM.
(15)TRANSFORMER
SEPARATOR
(19)ADDER
(18)DUTY CYCLE
MAKER
TECNICA 111
ILLUSTRATIONS
(3)RECTIFIER
BRIDGE
(1)PRIMARY EMC
FILTRE
(6)POWER
TRANSFORMER
(10)SECONDARYFILTER EMC
(8)SECONDARY
DIODES
(2)PRE-CHARGE
(17)ALARM
LED
(9)INDUCTANCE
(12)AUXILIARY
POWERSUPPLY
TRIGGER
(20)ALARM BLOCK
(24)POWER SUPPLY
LED
(6)CURRENT
TRANSFORMER
- 6 -
PO
WER P
CB
10
0/1
15
V O
R 2
30
V O
NLY
MO
DELS
WIT
H P
OW
ER S
UPPLY
CH
AN
GE
+J4
+J4
-J4
-J4
J7J7
23
0V
23
0V
11
5V
11
5V
P4
P4
PE
L1N (L2
)
V1
Fan
V1
Fan
J1J1J2J2
OU
T+O
UT+
J3J3
OU
T-O
UT-
54
1
2
S1O
N/O
FF
54
1
2
S1O
N/O
FF
TECNICA 111
WIRING DIAGRAMS
General wiring diagram
- 7 -
X
F
-
DC
+ DC
-
XF+
XF
-
X
F
+
+
1
2
V
N
O
1
8
0
0
u
2
5
0
V
A
l
l
N
O
1
8
0
0
u
2
5
0
V
A
l
l
N
O
N
O
6
8
0
u
4
0
0
V
A
l
l
N
O
C
2
2
C
2
1
S
I
S
I
T
E
C
N
I
C
A
1
1
1
2
3
0
V
C
ON
TR
OLLO
E D
RIV
ER
T
E
C
N
I
C
A
1
1
1
1
1
5
V
S
I
C
O
N
D
.
E
J
U
M
P
E
R
:
J
P
5
J
P
4
J
P
3
J
P
1
N
O
N
M
O
N
T
A
T
O
S
T
2
S
T
2
R65
N .
M
.R
65
N .
M
.
D14
MU
R8
60
D14
MU
R8
60
115V
Fa
sto
n-M
6
,3x0
,8
115V
Fa
sto
n-M
6
,3x0
,8
+
J
4 +
J
4
OU
T-
Fo
roOU
T-
Fo
ro
C
1
8
2
2
0
u
5
0
V
A
l l
C
1
8
2
2
0
u
5
0
V
A
l l
C25
4n7
100
0 K
PC
25
4n7
1000
KP
C30
4n7
1000
KP
C30
4n7
1000
KP
RL1
18V
dc
36m
A/2
50V
16A
RL1
18V
dc
36m
A/2
50V
16A
C33
4n7
250V
KP
C33
4n7
250V
KP
L110uH
85A
L110uH
85A
230V
Fa
sto
n-M
6
,3x0
,8
230V
Fa
sto
n-M
6
,3x0
,8
C22
C22
D31
MU
R8
60
D31
MU
R8
60
1
2
4
3
T2
TA
1/1
00
15A
T2
TA
1/1
00
15A
D
1
0
V
e
r
d
e
5
m
m
D
1
0
V
e r
d
e
5
m
m
D
1
2
G i
a l l
o
5
m
m
D
1
2
G i
a l l
o
5
m
m
C8
4n7
250V
KP
C8
4n7
250V
KP
C28
4n7
250V
KP
C28
4n7
250V
KP
D
3
3
D
S
E
I
1
2
0 -
0
6
A
D
3
3
D
S
E
I
1
2
0 -
0
6
A
J2 Fo
ro
J2 Fo
ro
C15
4n7
250V
KP
C15
4n7
250V
KP
C27
100n
630
V M
KP
C27
100n
630
V M
KP
R
4
1
4
K
7
0
8
0
5
5
% R
4
1
4
K
7
0
8
0
5
5
%
J1 Fo
ro
J1 Fo
ro
H1
Dis
sipa
tore
H1
Dis
sipa
tore
R
6
0
1
0
R
5
W
5
%
R
6
0
1
0
R
5
W
5
%
JP1
Jum
pe
rJP
1Ju
mp
er
OU
T+
Fo
roOU
T+
Fo
ro
D34
DS
EI 1
20
-06A
D34
DS
EI 1
20
-06A
C1
1u
275V
MK
PC
11u
275V
MK
P
D21
MU
R4
60
D21
MU
R4
60
C
1
7
1
0
0
u
3
5
V
A
l l
C
1
7
1
0
0
u
3
5
V
A
l l
R18
6K
8 5
W 5%
R18
6K
8 5
W 5%
F15
217
B
S
C
H
E
D
A
P
O
T .
T
E
C
N
.
111
230
/115
V-B
RIL
-I
OU
TP
OU
TN
E
-
Q
5
B
-
Q
5
B
-
Q
8
C
N
1
-
6
C
N
1
-
1
SO
V-T
VA+
C
N
1
-
7D
C-
S
T
S
_
A
S
T
S
_
B
12
3
D
8
B
A
V
9
9
D
8 B
A
V
9
9
- J
4 - J
4
RV
1N
.M.
RV
1N
.M.
R
4
0
4
K
7
0
8
0
5
5
% R
4
0
4
K
7
0
8
0
5
5
%
C
1
6
1
0
0
n
5
0
V
X
7
R
C
1
6
1
0
0
n
5
0
V
X
7
R
T4
270uH
16A
T4
270uH
16A
D35
MU
R4
60
D35
MU
R4
60
P4
Fo
roP4
Fo
ro
PD
1G
BPC
3508
PD
1G
BPC
3508
C
2
0
4
7
0
u
5
0
V
A
l l
C
2
0
4
7
0
u
5
0
V
A
l l
V
1
1
2
V
d
c
V
1 1
2
V
d
c
Q8
IGB
TQ
8IG
BT
H2
Dis
sipa
tore
H2
Dis
sipa
tore
JP5
Jum
pe
rJP
5Ju
mp
er
D32
MU
R46
0D
32
MU
R46
0
C
3
2
1
n
5
6
3
0
V
K
P
C
3
2
1
n
5
6
3
0
V
K
P
C34
N.M
.C
34
N.M
.
D13
MU
R4
60
D13
MU
R4
60
S
T
1
S
T
1
R35
6K
8 5
W 5%
R35
6K
8 5
W 5%
Q5
IGB
TQ
5IG
BT
J3 Fa
sto
n-M
6,3
x0,8
J3 Fa
sto
n-M
6,3
x0,8
JP3
Jum
pe
rJP
3Ju
mp
er
I
N1
O
U
T
3
G N D 2
U
3
L
M
7
8
1
2
A
U
3
L
M
7
8
1
2
A
J
7 F
o
r
o
J
7 F
o
r
o
1 2
5 6 43
T
3
T
r
a s f
o
P
o
t
e
n
z
a
T
3
T r
a s f
o
P
o
t
e
n
z
a
C21
C21
R
6
4
4
7
K
0
8
0
5
1
%
R
6
4
4
7
K
0
8
0
5
1
%
H4
Dis
sipa
tore
H4
Dis
sipa
tore
R8
1M 0
W5
5%
R
81M
0W
5 5%
R
3
7
2
7
R
5
W
5
%
R
3
7
2
7
R
5
W
5
%
R
4
5
2
K
2
0
8
0
5
5
%
R
4
5
2
K
2
0
8
0
5
5
%
GR
OU
ND
Fo
roGR
OU
ND
Fo
ro
R46
22R
9W
5%
R46
22R
9W
5%
R4
47R
8W
5%
R4
47R
8W
5%
JP4
Jum
pe
rJP
4Ju
mp
er
R63
22R
9W
5%
R63
22R
9W
5%
R
3
9
1
8
K
7
0
8
0
5
1
% R
3
9
1
8
K
7
0
8
0
5
1
%
D
3
6
1
2
V
2
W
5
%
D
3
6
1
2
V
2
W
5
%
D
1
1
B
Y
G
2
0
G
D
1
1
B
Y
G
2
0
G
D
9
B
Y
G
2
0
G
D
9
B
Y
G
2
0
G
TECNICA 111
Wiring diagram power board – power supply
C
N
1
-
9
C
N
1
-
5
C
N
1
-
2
CN
1-9
CN
1-3
CN
1-5
CN
1-8
C
N
1
-
8
CN
1-4
CN
1-4
CN
1-6
C
N
1
-
3
CN
1-2
CN
1-6
R
I
L - I
CN
1-6
O
U
T
N
VA+
B-Q
8
E-Q
5
B-Q
5
CN
1-7
SO
V-T
C
N
1
-
1
OU
TP
D
C
-
S
T
S
_
B
S
T
S
_
A
+12V
+12V
+
5
V
+
1
2
V
+5V
+12V
+
5
V
+
1
2
V
+12V
T
e
r
m
o s t
a t i
R
1
7
2
2
K
0
8
0
5
5
%
R
1
7
2
2
K
0
8
0
5
5
%
R19
33
K 1
206
5%
R19
33
K 1
206
5%
V
c
c
7
V
F
B
2
I s
e
n3
G
N
D
5
O
U
T6
C
O
M
P
1
V
R
E
F
8
R
T
/
C
T4
U
1
U
C
3
8
4
5
A
D
U
1
U
C
3
8
4
5
A
D
R58
120R
0805
5%
R58
120R
0805
5%
R5
33
K 1
206
5%
R5
33
K 1
206
5%
R14
33
K 1
206
5%
R14
33
K 1
206
5%
R1
33
K 1
206
5%
R1
33
K 1
206
5%
D
2
4
1
0
V
0
W
4
5
%
D
2
4
1
0
V
0
W
4
5
%
R
1
3
4
K
7
0
8
0
5
5
%
R
1
3
4
K
7
0
8
0
5
5
%D
28
BYG
20G
D28
BYG
20G
1 2
3
D
3
8
B
A
V
9
9
D
3
8
B
A
V
9
9
R
1
5
1
0
0
R
0
8
0
5
5
%
R
1
5
1
0
0
R
0
8
0
5
5
%
R
2
6
1
4
K
7
0
8
0
5
1
%
R
2
6
1
4
K
7
0
8
0
5
1
%
R
6
1
0
0
R
0
8
0
5
5
%
R
6
1
0
0
R
0
8
0
5
5
%
D
1
5
1
8
V
0
W
4
5
%
D
1
5
1
8
V
0
W
4
5
%
R
9
6
8
0
R
0
8
0
5
5
%
R
9
6
8
0
R
0
8
0
5
5
%
C26
1u
25V
Z5U
C26
1u
25V
Z5U
R
4
7
1
K
0
8
0
5
5
% R
4
7
1
K
0
8
0
5
5
%
1
2 3
Q7
BC
807
Q7
BC
807
R32
10
K 0
805
5%
R32
10
K 0
805
5%
D29
18V
0W
4 5%
D29
18V
0W
4 5%
C
1
1
1
u
2
5
V
Z
5
U
C
1
1
1
u
2
5
V
Z
5
U
D
3
7
4
V
7
0
W
4
2
%
D
3
7
4
V
7
0
W
4
2
%
D19
BYG
20G
D19
BYG
20G
D16
18V
0W
4 5%
D16
18V
0W
4 5%
R
1
6
1
K
0
8
0
5
5
%
R
1
6
1
K
0
8
0
5
5
%
R59
470R
0805
5%
R59
470R
0805
5%
D25
BYG
20G
D25
BYG
20G
R
4
8
4
7
R
0
8
0
5
5
%
R
4
8
4
7
R
0
8
0
5
5
%
R42
1K
0805
5%
R42
1K
0805
5%
R
2
8
6
8
0
R
0
8
0
5
5
%
R
2
8
6
8
0
R
0
8
0
5
5
%
R52
3K
3 1
206
5%
R52
3K
3 1
206
5%
R
2
0
6
8
0
R
0
8
0
5
5
%
R
2
0
6
8
0
R
0
8
0
5
5
%
D
2
2
1
0
V
0
W
4
5
%
D
2
2
1
0
V
0
W
4
5
%
D23
BYG
20G
D23
BYG
20G
1
23
Q
2
B
C
8
1
7
Q
2 B
C
8
1
7
R33
220
K 0
805
5%
R33
220
K 0
805
5%
R
2
2
0
0
R
1
T
0
W
5
1
0
%
R
2 2
0
0
R
1
T
0
W
5
1
0
%
R43
10
K 0
805
5%
R43
10
K 0
805
5%
D18
BYG
20G
D18
BYG
20G
12
3
D7
BA
V99
D7
BA
V99
C
3
1
0
0
p
5
0
V
X
7
R
C
3
1
0
0
p
5
0
V
X
7
R
D27
BYG
20G
D27
BYG
20G
R50
2K
2 0
805
5%
R50
2K
2 0
805
5%
R22
2
K
2
0
8
0
5
5
%
R22
2
K
2
0
8
0
5
5
%
R61
10R
12
06
5%
R
61
10R
12
06
5%
1
2 3
Q6
BC
807
Q6
BC
807
R
3
1
0
0
R
0
8
0
5
5
%
R
3 1
0
0
R
0
8
0
5
5
%
1
23
Q
1
B
C
8
1
7
Q
1 B
C
8
1
7
D17
18V
0W
4 5%
D17
18V
0W
4 5%
R56
120R
0805
5%
R56
120R
0805
5%
12
13
14
4 1 1
U2D
LM324
U2D
LM324
R
4
9
1
K
1
2
0
6
5
% R
4
9
1
K
1
2
0
6
5
%
D26
BYG
20G
D26
BYG
20G
R38
2K
2 0
805
5%
R38
2K
2 0
805
5%
D30
18V
0W
4 5%
D30
18V
0W
4 5%
D
4
2
4
V
0
W
4
5
%
D
4
2
4
V
0
W
4
5
%
R
4
4
4
K
7
0
8
0
5
5
%
R
4
4
4
K
7
0
8
0
5
5
%
C
1
4
1
0
0
n
5
0
V
X
7
R
C
1
4
1
0
0
n
5
0
V
X
7
R
R30
4K
7 0
805
5%
R30
4K
7 0
805
5%
R24
33
K 1
206
5%
R24
33
K 1
206
5%
R
2
7
1
0
K
0
8
0
5
5
%
R
2
7
1
0
K
0
8
0
5
5
%
R
1
1
4
K
7
0
8
0
5
5
%
R
1
1
4
K
7
0
8
0
5
5
%
R57
6K
8 5
W 5%
R57
6K
8 5
W 5%
Q
4 I
R
F
D110
Q
4 I
R
F
D110
12
3
D6
BA
V99
D6
BA
V99
C31
1u
25V
Z5U
C31
1u
25V
Z5U
R51
3K
3 1
206
5%
R51
3K
3 1
206
5%
R
2
5
2
7
R
1
W
5
%
R
2
5
2
7
R
1
W
5
%
12
3
D
5
B
A
V
9
9
D
5 B
A
V
9
9
R34
1K
0805
5%
R34
1K
0805
5%
R53
1K
0805
5%
R53
1K
0805
5%
R
1
0
4
7
0
R
0
8
0
5
5
%
R
1
0
4
7
0
R
0
8
0
5
5
%
C
1
3
1
0
0
n
5
0
V
X
7
R
C
1
3
1
0
0
n
5
0
V
X
7
R
1
2 3
Q9
BC
807
Q9
BC
807
C
2
1
0
0
p
5
0
V
X
7
R
C
2
1
0
0
p
5
0
V
X
7
R
C
1
0
1
0
0
n
5
0
V
X
7
R
C
1
0
1
0
0
n
5
0
V
X
7
R
1
0 9
8
4 1 1
U
2
C
L
M
3
2
4
U
2
C L
M
3
2
4
3 21
4 1 1
U2A
LM324
U2A
LM324
C
2
3
1
0
0
n
5
0
V
X
7
R
C
2
3
1
0
0
n
5
0
V
X
7
R
R
7
1
0
K
0
8
0
5
5
%
R
7 1
0
K
0
8
0
5
5
%R36
2K
2 0
805
5%
R36
2K
2 0
805
5%
C
2
9
1
0
0
u
3
5
V
A
l l
C
2
9
1
0
0
u
3
5
V
A
l l
R
2
1
1
4
K
7
0
8
0
5
1
%
R
2
1
1
4
K
7
0
8
0
5
1
%
R55
470R
0805
5%
R55
470R
0805
5%
R31
100
K 0
805
5%
R31
100
K 0
805
5%
R29
22
K 1
206
5%
R29
22
K 1
206
5%
C19
100n
50V
X7R
C
19
100n
50V
X7R
R54
10R
12
06
5%
R54
10R
12
06
5%
12
3
D
1
B
A
V
9
9
D
1
B
A
V
9
9
D
2
0
B
Y
G
2
0
G
D
2
0 B
Y
G
2
0
G
18
654 3
T
1
T
I
1
2
0023
T
1
T
I
1
2
0023
C24
1n
50V
NPO
C24
1n
50V
NPO
R62
1K
0805
5%
R62
1K
0805
5%
C
4
4
u
7
1
6
V
T
A
N
C
4
4
u
7
1
6
V
T
A
N
C
1
2
1
0
n
5
0
V
X
7
R
C
1
2
1
0
n
5
0
V
X
7
R
214 3
ISO
1T
LP
621
ISO
1T
LP
621
D
3
4
V
7
0
W
4
5
%
D
3
4
V
7
0
W
4
5
%
5 67
4 1 1
U2
BLM
324
U2
BLM
324
C
5
1
n
5
0
V
N
P
O
C
5
1
n
5
0
V
N
P
O
12
3 D
2
B
A
V
9
9
D
2
B
A
V
9
9
1 2 3 4 5 6 7 8 9 10
11
12
Te
st P
oin
t
12
Fo
ri P
asso
2.5
4mm
Te
st P
oin
t
12
Fo
ri P
asso
2.5
4mm
R
1
2
1
0
K
0
8
0
5
5
%
R
1
2
1
0
K
0
8
0
5
5
%
C
6
1
0
0
n
5
0
V
X
7
R
C
6
1
0
0
n
5
0
V
X
7
R
1
23
Q
3
B
C
8
1
7
Q
3 B
C
8
1
7
R
2
3
1
0
K
L i
n
0
W
2
2
0
%
R
2
3
1
0
K
L
i
n
0
W
2
2
0
%
C
9
1
n
5
0
V
N
P
O
C
9
1
n
5
0
V
N
P
O
C
7
1
0
0
n
5
0
V
X
7
R
C
7
1
0
0
n
5
0
V
X
7
R
- 8 -
TECNICA 111
Wiring diagram power board – driver / control
4 2 51 3
6
- 9 -
TECNICA 111
REPAIR GUIDEREPAIR GUIDEREPAIR GUIDEREPAIR GUIDE
EQUIPMENT REQUIRED
(*)The instruments with codes can be supplied by Telwin. The sale price is available on request.
ESSENTIAL INSTRUMENTS1 Dual trace oscilloscope cod. 802401 (*)2 Static load generator cod. 802110 (*)3 Variac 0 - 300v 1500 VA cod. 802402 (*)4 Digital multimeter
USEFUL INSTRUMENTS5 Unsoldering station6 Miscellaneous tools
TROUBLESHOOTING AND REMEDIES
1.0 Disassembling the machine
WARNING: Every operation should be carried out in complete safety BEFORE PROCEEDING WITH REPAIRS TO THE with the power supply cable disconnected from the mains MACHINE READ THE INSTRUCTION MANUAL outlet and should only by done by expert or skilled
electrical-mechanical personnel.CAREFULLY.- undo the 4 screws attaching the handle to the top cover
(fig.1);WARNING:- undo the 2 screws fastening the two plastic shells to the EXTRAORDINARY MAINTENANCE SHOULD BE
base: 1 screw on each side (fig.1);CARRIED OUT ONLY AND EXCLUSIVELY BY
- undo the 2 screws attaching the handle to the base: 1 E X P E R T O R S K I L L E D E L E C T R I C A L - screw on each side (fig.1);MECHANICAL PERSONNEL. - on the top cover undo the nut for the earth connection
(J7);WARNING: - slide out the top cover upwards (fig.1);
- undo the two screws fastening the power board to the ANY CHECKS CARRIED OUT INSIDE THE base.MACHINE WHEN IT IS POWERED MAY CAUSE
After completing the repairs, proceed in the reverse order to SERIOUS ELECTRIC SHOCK DUE TO DIRECT re-assemble the cover and do not forget to insert the
CONTACT WITH LIVE PARTS. toothed washer on the ground screw.
GENERAL REPAIR INSTRUCTIONS 2.0 Cleaning the inside of the machineUsing suitably dried compressed air, carefully clean the
The following is a list of practical rules which must be strictly components of the power source since dirt is a danger to adhered to if repairs are to be carried out correctly. parts subject to high voltages and can damage the galvanic A) When handling the active electronic components, the separation between the primary and secondary.
IGBT's and Power DIODES in particular, take To clean the electronic boards we advise decreasing the air elementary antistatic precautions (use antistatic pressure to prevent damage to the components.footwear or wrist straps, antistatic working surfaces It is therefore important to take special care when cleaning etc.). the following parts
B) To ensure the heat flow between the electronic Fan (fig. 2A)components and the dissipator, place a thin layer of Check whether dirt has been deposited on the front and thermo-conductive grease (e.g. COMPOUND back air vents or has damaged the correct rotation of the GREASIL MS12) between the contact zones. blades, if there is still damage after cleaning replace the fan.
C) The power resistors (should they require replacement) Power board (figs. 2A and 2B):should always be soldered at least 3 mm above the - rheofores of IGBT's Q5, Q8;board. - rheofores of recirculating diodes D14, D31;
D) If silicone is removed from some points on the boards, it - rheofores of secondary power diodes D33, D34, D 23;should be re-applied. -N.B. Use only non-conducting neutral or oximic - treticulating silicones (e.g. DOW CORNING 7093). -Otherwise, silicone that is placed in contact with points at different potential (rheophores of IGBT's, etc.) should 3.0 Visual inspection of the machinebe left to reticulate before the machine is tested. Make sure there is no mechanical deformation, dent, or
E) When the semiconductor devices are soldered the damaged and/or disconnected connector. Make sure the maximum temperature limits should be respected power supply cable has not been damaged or disconnected (normally 300 C for no more than 10 seconds). internally and that the fan works with the machine switched
F) It is essential to take the greatest care at each on. Inspect the components and cables for signs of burning disassembly and assembly stage for the various or breaks that may endanger operation of the power source. machine parts. Check the following elements:
G) Take care to keep the small parts and other pieces that Main power supply switch (fig. 2A)are dismantled from the machine so as to be able to Use the multimeter to check whether the contacts are stuck position them in the reverse order when re-assembling together or open. Probable cause: (damaged parts should never be omitted but should be - mechanical or electric shock (e.g. bridge rectifier or replaced, referring to the spare parts list given at the IGBT in short circuit, handling under load).end of this manual). Current potentiometer R23 (fig. 3)
H) The boards (repaired when necessary) and the wiring Probable cause:should never be modified without prior authorisation - mechanical shock.from Telwin. Relay RL1 (fig. 3)
I) For further information on machine specifications and Probable cause:operation, refer to the Instruction Manual. - see main power supply switch. N.B. If the relay contacts
J) WARNING! When the machine is in operation there are are stuck together or dirty, do not attempt to separate dangerously high voltages on its internal parts so do not them and clean them, just replace the relay.touch the boards when the machine is live.
°
thermostat ST2 on power transformer; hermostat ST1 on secondary diode dissipator;opto-coupler ISO1;
- 10 -
TECNICA 111
B) With the multimeter set in ohm mode check the following Electrolytic capacitors C21,C22 (fig. 3)components:Probable cause- resistor R4: 47ohm (pre-charge fig. 3);- mechanical shock;- resistors R46, R63: 22ohm (primary snubber fig. 3);- machine connected to power supply voltage much - resistor R60: 10ohm (secondary snubber fig. 3);higher than the rated value;-- broken rheophore on one or more capacitor: the
remainder will be overstressed and become damaged by overheating;
- ageing after a considerable number of working hours;- overheating caused by thermostatic capsule failure.IGBT's Q5, Q8 (fig. 4)
6.0 Electrical measurements with the machine in Probable cause:- discontinuation in snubber network; operation- fault in driver circuit; WARNING! Before proceeding with faultfinding, we should - poorly functioning thermal contact between IGBT and remind you that during these tests the power source is
dissipator (e.g. loosened attachment screws: check); powered and therefore the operator is exposed to the - excessive overheating related to faulty operation. danger of electric shock. The tests described below can be
used to check the operation of the power and control parts Primary diodes D14, D31(fig. 4)of the power source.Probable cause:
- excessive overheating related to faulty operation.6.1 Preparation for testingSecondary diodes D33, D34 (fig. 4)A)Probable cause:
- discontinuation in snubber network;- poorly functioning thermal contact between IGBT and
B) Set up the multimeter in DC mode and connect the prods dissipator (e.g. loosened attachment screws: check);to the OUT+ and OUT- bump contacts.- faulty output connection.C) Position the potentiometer R23 on maximum (turn Power transformer and filter reactance (fig. 2A)clockwise as far as it will go).D) Connect the power supply cable to a single-phase 4.0 Checking the power and signal wiringvariac with variable output 0-300 Vac.It is important to check that all the connections are in good
condition and the connectors are inserted and/or attached 6.2 Tests for the TECNICA 111 (230V)correctly. To do this, take the cables between finger and A) Switch on the variac (initially set to the value 0 V), switch thumb (as close as possible to the fastons or connectors) off the main switch on the power source and increase the and pull outwards gently: the cables should not come away variac voltage gradually to 230 Vac and make sure:from the fastons or connectors. N.B. If the power cables are - the green power supply LED D10 lights up (fig. 3),not tight enough this could cause dangerous overheating. - the fan for the power transformer starts up correctly;In particular, on the power board (fig.2A) it is necessary to - the pre-charge relay K1 commutes (fig. 3);check the power wiring:- for voltages close to the rated power supply value - the connection of the power supply cable to the fastons
(230Vac ±15%) the power source is not in alarm status at the main switch and to the earth faston (J3) on the (yellow LED D12 off); N.B. if the power source stays in power board;alarm status permanently, there could be a fault in the - the connections from the power board to the main switch control board (in any case, proceed to make the other (J1, J2);tests).
B) Make sure the waveform shown on the oscilloscope resembles fig. A.
Other checks:Make sure that the connections to the (+) and (-) dinse sockets are attached correctly to the power board (fig.2B).
5.0 Electrical measurements with the machine switched offA) With the multimeter set in diode testing mode check the following components (junction voltages not less than 0.2V):- rectifier bridge PD1 (fig. 3);- IGBT's Q5, Q8 (absence of short circuits between
collector-gate and between emitter-collector fig. 4); - secondary board diodes D33, D34 between anode and
cathode (fig. 4). The secondary diodes can be checked without removing the power board: with one prod on the secondary board dissipator diodes and the other in sequence on the two power transformer outlets.
(No C22 on 230V version of Tecnica 111):
continuity test for thermostat on power transformer and for thermostat on secondary diode dissipator: clean the resin from the bump contacts for STS(J6) and measure the resistance over the same bump contacts, it should be approx O Ohm (fig. 2B).
Set up the oscilloscope with the voltage probe x10 connected between pin 2 (DRAIN) of Q4 and the earth on the case of U3 (fig. 3).
- Connections of thermostat on power transformer (ST2) and of thermostat on secondary diode dissipator (ST1);
- Fan connections (+J4, -J4);- Connection P4 to 230V or 115V fastons, depending on
the model.
N.B. If this signal is absent it may be necessary to replace component Q4 (fig. 3).
- 11 -
TECNICA 111
FIGURE A
SETTINGS CH1:· PROBE x10;· 10 V/Div;· 5 µsec/Div.
VERIFY THAT:· THE FREQUENCY IS:
52KHz ±10%.· AMPLITUDE IS:
22V ±10%.
C) Set up a multimeter in volt mode and make sure that (fig. 3):- the voltage between pin 5 of TP and the case of U3 is
equal to +12Vdc 3%;- the voltage between pin 12 of TP and the case of U3 is
equal to +21Vdc 3%;- the voltage between pin 10 of TP and the case of U3 is
6.3 Scheduled tests for the TECNICA 111 (115V)equal to +5Vdc 3%;WARNING! Power the power source at the rated voltage of - the voltage between pin 2 of TP and the case of U3 is
equal to +3.7Vdc 5%; 115Vac. In this case the tests are the exactly the same as · the voltage on the rheofore of R37 towards L1 and the those for the Tecnica 111 (230V) and can be carried out in
case of U3 is equal to +12Vdc 5%. the same way.
7.0 Repairs, replacing the boards If repairing the board is complicated or impossible, it should be completely replaced. The board is identified by a 6-digit code (printed in white on the component side after the initials TW). This is the reference code for requesting a replacement: Telwin may supply boards that are compatible but with different codes. Warning: before inserting a new board check it carefully for damage that may have occurred in transit. When we supply a board it has already been tested and so if the fault is still present after it has been replaced correctly, check the other machine components. Unless specifically required by the procedure, never alter the board trimmers.
I) Switch the power source on again and make sure that, following the brief start up time, the machine is not in alarm status (the yellow alarm LED D12 is off, fig.3). N.B. If the machine remains in alarm status (and this is not due to a fault in ±the control) there could be a fault in the photocoupler ISO1 (fig. 3). ±
±
±
±D) Set up the dual trace oscilloscope. Connect the probe CH1(x100) to the Q8 collector and probe CH2(x10) to the gate, also of Q8. The earth connections are both made to the emitter of Q8.E) Make sure the waveform displayed on the oscilloscope resembles fig. B.
7.1 Removing the power board (fig. 2A) If the fault is in the power board remove it from the bottom as follows:- with the machine disconnected from the main supply,
disconnect all the wiring connected to the board; - remove the current adjustment knob on the front panel of
the machine ( fig. 1);- remove any bands constraining the board (e.g. on the
power supply cable and connections to primary);F) Repeat this test on Q5 as well using the differential - from the welding side undo the two screws fastening the probe. dinse sockets to the printed circuit board (fig. 2B).N.B. if the signal is not present, there may be a fault in the - undo the 2 screws fastening the board to the bottom (fig. IGBT driver circuit (fig. 4). 2B).G) Set up the dual trace oscilloscope. Connect probe CH1 - undo the 2 screws fastening the board to the front and (x100) to the collector of Q8 and probe CH2 (x10) to pin 1 of back on the inside (fig. 2B).TP (test point) . The earth terminals are connected together - after removing the screws, lift the board upwards to to the emitter of Q1. remove it from the bottom of the machine.H) Make sure the waveform displayed on the oscilloscope N.B. to re-assemble, proceed in the reverse order, resembles fig.C and that the output voltage over OUT+ remembering to insert the toothed washers on the earth and OUT - is equal to +80Vdc ±10%. screws.
A) Please read the procedure for replacing the IGBT's carefully: (fig. 4).The 2 IGBT's are attached to 2 different dissipators and whenever a replacement is required, both IGBT's should be replaced. - undo the screws attaching the dissipator to the board to
replace IGBT (fig. 2B);- undo the screws attaching the dissipator to the board to
replace IGBT(fig. 2B);- remove the 2 IGBT's Q5,Q8 and the 2 diodes D14, D31
by unsoldering the rheofores and then clean the solder from the printed circuit bump contacts;
- remove the 2 dissipators from the board;- undo the screws locking the 2 IGBT's.
- 12 -
TECNICA 111
FIGURE B
SETTINGS:· PROBE CH1 x100;· 5V/Div;· PROBE CH2 x10;· 10V/Div;· 5 µsec/Div.
TIME TOLLERANCES: ±20%.
VERIFY THAT· AMPLITUDE CH1 IS
320V ±10%;· POSITIVE
AMPLITUDE CH2 IS +18V ±10%;
· NEGATIVE AMPLITUDE CH2 IS -10V ±10%.
FIGURE C
SETTINGS:· PROBE CH1 x 100· 100V/Div;· PROBE CH2 x10;· 500mV/Div;· 5 sec/Div.
TOLERANCES:· FOR TIME 20%.
PEAK AMPLITUDE CH1:· 320V 10%.PEAK AMPLITUDE CH2:· 500mV 10%.
Before making the replacement make sure the components piloting the IGBT's are not also damaged: - with the multimeter set in ohm mode make sure there is Tests should be carried out on the assembled machine
st rdno short circuit on the PCB between the 1 and 3 bump before closing it with the top cover. During tests with the contacts (between gate and emitter) corresponding to machine in operation never commute the selectors or
activate the ohmic load contactor. WARNING! Before each component;proceeding to test the machine, we should remind you that - alternatively, resistors R54 and R61 could have burst during these tests the power source is powered and and/or diodes D16, D17, D29 and D30 may be unable to therefore the operator is exposed to the danger of electric function at the correct Zener voltage (this should have shock. The tests given below are used to verify power shown up in the preliminary tests);source operation under load.- clean any irregularity or dirt from the dissipators. If the
IGBT's have burst the dissipators may have been 1.1 Preparation for testing.irreversibly damaged: in this case they should be A) Connect the power source to the static load generator
replaced;using cables fitted with the appropriate dinse connectors
- apply thermo-conductive grease following the general (code 802110).instructions.
- Insert the new IGBT's between the dissipator and the spring, taking care not to damage the component during assembly (the spring should be inserted under pressure on the dissipator so as to lock the component); C) Set up the multimeter in DC mode and connect the prods
- place the dissipators with the new IGBT's and primary to the OUT+ and OUT- bump contacts.diodes D14 and D20 (WARNING! Make sure there is D) Connect the power supply cable to the 230Vac power insulation between the case of diode D20 and the supply.
WARNING! During tests the operator must avoid contact dissipator) in the PCB bump contacts, placing 4 spacers with the metal parts of the torch because of the presence of between the dissipator and the PCB (2 for each dangerous, high voltage.dissipator) and fasten them down with the screws
(torque wrench setting for screws 1 Nm ±20%);- solder the terminals taking care not to let the solder run
along them;- on the welding side cut away the protruding part of the
rheofores and check they are not shorted (between the gate and emitter in particular).
B) Please read the procedure for replacing the - activate the statico load generator and make sure that:secondary board diodes carefully (fig. 4): - the waveforms displayed on the oscilloscope
resemble those in fig. D;The 2 SECONDARY DIODES are attached to the same - the output current is +40Adc ±10%, and the output dissipator, and when a replacement is required, all of them
voltage is +21.6Vdc ±5%;should be replaced:- deactivate the static load generator and switch off the - undo the screws attaching the dissipator to the board, to
main switch.replace diodes D33 and D34;- remove the 2 secondary diodes unsoldering the
rheofores and cleaning any solder from the bump contacts on the board;
- remove the dissipator from the board;- remove the spring locking the 2 diodes;- clean any irregularity or dirt from the dissipator. If the
diodes have burst the dissipator may have been irreversibly damaged: in this case it should be replaced;
- apply thermo-conductive grease following the general instructions;
- insert the new diodes between the dissipator and the spring, taking care not to damage the component during assembly (the screw should be inserted under pressure on the dissipator so as to lock the component);
- place the dissipator with the new components in the PCB bump contacts and fasten them down with the screws (torque wrench setting for screws 1 Nm ±20%);
- solder the terminals taking care not to let the solder run along them;
- on the soldering side cut away the protruding part of the rheofores and check they are not shorted (between cathode and anode);
N.B. make sure resistor (R60) and capacitor (C32) on the snubber have been soldered to the PCB correctly (fig. 3).
TESTING THE MACHINE
B) Set up the dual trace oscilloscope, connecting probe CH1 (x100) to the collector on Q8 and probe CH2 (x10) to pin 1 on TP (or the rheofore of R25 towards R2). The earth terminals are connected together to the emitter, also of Q8.
1.2 Scheduled tests for the TECNICA 111 (230V)A) Intermediate load test: - set up the static load generator with the switch settings
as in the table in fig. D;- on the front panel position the current potentiometer at
(approx.) half way and switch on the main switch;
- 13 -
TECNICA 111
FIGURE D
position switch
number switch 11
21
31
41
51
61
SETTINGS:· PROBE CH1 x100· 100V/Div;· PROBE CH2 x10;· 2V/Div;· 5 sec/Div.
TIME TOLLERANCES ±20%.
VERIFY THAT· AMPLITUDE CH1
IS 320V ±10%.· AMPLITUDE CH2
IS 5V ±10%.· AMPLITUDE CH2
IS 4V ±10%.
µ
B) Rated load test:- set up the static load generator with the switch settings
as in the table in fig. E;- on the front panel position the current potentiometer to
the maximum (turn the knob clockwise as far as it will go) and switch on the main switch;
- activate the static load generator and make sure that:- the voltage waveforms on the oscilloscope display
resemble those in fig. E;- the output current is +85Adc ±3%, and the output
voltage is +23.5Vdc ±5%.±
- deactivate the static load generator and switch off the main switch.
D) Running time check and closing the machineWith the load status as in fig. E and the current adjustment potentiometer on maximum, switch on the power source and leave it in operation until the thermostatic capsules trigger (machine in alarm status). Check the correct positioning of the internal wiring and finally re-assemble the machine.
E) Welding testWith the power source set up according to the instructions in the handbook make a test weld at 80A (electrode diameter 2.5 mm). Check the dynamic behaviour of the power source. 1.3 Tests for the TECNICA 111 (115V)
C) Checking the secondary diode voltages:- set up the dual trace oscilloscope, connecting probe
CH1 x 100 to the anode of diode D33 and probe CH2x100 to the anode of diode D34. Earth connections are both made to the secondary dissipator;
- remove the multimeter from the OUT+ and OUT- bump contacts;
- set up the static load generator with the switch settings as in the table in fig. E;
- on the front panel position the current potentiometer R23 to the maximum (turn the knob clockwise as far as it will go) and switch on the main switch;
- activate the static load generator and make sure that the waveforms displayed on the oscilloscope resemble those in fig. F;
- deactivate the static load generator and switch off the main switch.
- if the output current is not +85Adc 3% , adjust the current using the Imax trimmer .
WARNING! Power the power source at the rated voltage of 115Vac. In this case the tests are exactly the same as those for the Tecnica 111 (230V) and can be carried out in the same way.
R2 (Figura 2B)
- 14 -
TECNICA 111
FIGURE F
SETTINGS:· PROBE CH1 x100· 50V/Div;· PROBE CH2 x100;· 5V/Div;· 5 sec/Div.
TIME TOLLERANCES ±20%.
VERIFY THAT· REVERSE
AMPLITUDE CH1AND CH2 DOES NOT EXCEED 250V.
µ
FIGURE E
12
22
32
42
52
62
SETTINGS:· PROBE CH1 x100· 100V/Div;· PROBE CH2 x10;· 5V/Div;· 5 sec/Div.
TIME TOLLERANCES ±20%.
VERIFY THAT· AMPLITUDE CH1
IS 320V ±10%;· AMPLITUDE CH2
IS 7V ±10%.
µ
Position of switch
Switch number
FIG. 1
RHEOFORESD34,D33
FIG. 2A FIG. 2B
RHEOFORESQ8
- 15 -
TECNICA 111
SCREWS FASTENINGTOP COVER
POWER SUPPLY LED
CURRENT REGULATIONPOTENTIOMETER
ALARM LED
SCREWSFASTENING FRONT PANEL
SCREWS FASTENING BACK PANEL
SCREWSFASTENING
HANDLE
DINSE SOCKET
ILLUSTRATIONS
POWERTRANSFORMER
SECONDARYDISSIPATORS
POWER SUPPLYINTERRUPTOR FAN WIRE
BOTTOM INDUCTANCEFAN
FILTERCAPACITORS
PRIMARYDISSIPATORS
DIODES BRIDGEDISSIPATOR
BUMPCONTACTS
THERMOSTATSTS
RHEOFORESQ5 RHEOFORES
D14
Q5 DISSIPATOR
SCREWSFASTENING
SCREWS FASTENING
DINSE SOCKETS
Q8 DISSIPATOR
SCREWSFASTENING
SECONDARYDISSIPATOR
SCREWSFASTENING
BUMPCONTACTS
FAN+J4, -J4
RHEOFORESD20
- 16 -
FIG. 4PRIMARY
D14DIODE
PRIMARYDIODE
D31
IGBT Q8
ST1 THERMOSTAT
IGBT Q5
DRIVER IGBT
FIG. 3
C21
R1
U1
PD1 RL1
U3U2 R23
D10
ISO1
C32, R60DISSIPATORSFOR DIODES
DISSIPATORSFOR IGBT
R63
R46
R2R18, R35
D12
THERMOSTATST1
Q4
D34D33
TECNICA 111
ELENCO PEZZI DI RICAMBIO - LISTE PIECES DETACHEESSPARE PARTS LIST - ERSATZTEILLISTE - PIEZAS DE REPUESTO
Per richiedere i pezzi di ricambio senza codice precisare: codice del modello; il numero di matricola; numero di riferimento del particolare sull'elenco ricambi.Pour avoir les pieces detachees, dont manque la reference, il faudra preciser: modele, logo et tension de I'appareil; denomination de la piece; numero de matricule
When requesting spare parts without any reference, pls specify: model-brand and voltage of machine; list reference number of the item; registration numberWenn Sie einen Ersatzteil, der ohne Artikel Nummer ist, benoetigen, bestimmen Sie bitte Folgendes: Modell-zeichen und Spannung des Geraetes; Teilliste Nuemmer; Registriernummer
Por pedir una pieza de repuesto sin referencia precisar: modelo-marca e tension de la maquina; numero di riferimento de lista; numero di matricula
- 17 -
Esploso macchina, Dessin appareil, Machine drawing, Explosions Zeichnung des Geräts, Diseño seccionado maquina.
1
13
8
6
10
15
12 2 3 14 19
11 9 4
5
17
22
7
16
20
21
18
TECNICA 111
ELENCO PEZZI DI RICAMBIOPIECES DETACHEESSPARE PARTS LISTERSATZTEILLISTE
PIEZAS DE REPUESTO
ELENCO PEZZI DI RICAMBIOPIECES DETACHEESSPARE PARTS LISTERSATZTEILLISTE
PIEZAS DE REPUESTO
ELENCO PEZZI DI RICAMBIOPIECES DETACHEESSPARE PARTS LISTERSATZTEILLISTE
PIEZAS DE REPUESTO
ELENCO PEZZI DI RICAMBIOPIECES DETACHEESSPARE PARTS LISTERSATZTEILLISTE
PIEZAS DE REPUESTO
ELENCO PEZZI DI RICAMBIOPIECES DETACHEESSPARE PARTS LISTERSATZTEILLISTE
PIEZAS DE REPUESTO
REF. REF. REF. REF. REF.
PotenziometroPotentiometrePotentiometerPotentiometerPotenciometroResistenzaResistanceResistorWiederstandResistenciaRele'RelaisRelaisRelaisRelaisDiodoDiodeDiodeDiodeDiodoCondensatoreCondensateurCapacitorKondensatorCondensadorRaddrizzatoreRedresseurRectifierGleichrichterRectificadorManopola PotenziometroPoignee Pour PotentiometreKnob For PotentiometerPotentiometergriffMalja Por Resist.electr.variableInterruttoreInterrupteurSwitchSchalterInterruptor
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
TermostatoThermostatThermal SwitchThermostatTermostatoCavo Alim. Cable Alim.Mains CableNetzkabelCable Alim. VentilatoreVentilateurFanVentilatorVentiladorInduttanza FiltroInductance FilterFilter InductanceFilter DrosselInduccion FiltroInduttanzaInductanceInductanceDrosselInduccionTrasformatore PotenzaTransformateur PuissancePower TransformerLeistungstransformatorTransformador De PotenciaFondoChassisBottomBodenteilFondoPresa DinsePrise DixDinse SocketDinse SteckdoseEnchufe Dinse
Kit Igbt + DiodoKit Igbt + DiodeKit Igbt + DiodeKit Igbt + DiodeKit Igbt + DiodoKit MantelloKit CapotCover LitDeckel KitKit Panel De CoberturaKit SchedaKit FicheKit BoardKit KarteKit TarjetaFrontalePartie FrontalFront PanelGeraetefrontFrontalRetroPartie ArriereBack PanelRueckseiteTraseraManigliaPoigneeHandleHandgriffManija
- 18 -
TECNICA 111
TECHNICAL REPAIR CARD.In order to improve the service, each servicing centre is requested to fill in the technical card on the following page at the end of every repair job. Please fill in this sheet as accurately as possible and send it to Telwin. Thank you in advance for your co-operation!
- 19 -
TECNICA 111
Official servicing centers
Repairing sheetDate:
Inverter :
Serial number:
Company:
Technician:
model
In which place has the inverter been used?
Building yard
Workshop
Others:
Supply:
Power supply
From mains without extension
:From mains with extension m
Mechanichal stresses the machine has undergone to
cription:Des
Dirty grade
Dirty inside the machine
Description:
Rectifier bridge
Electrolytic capacitors
Relais
In-rush limiter resistance
IGBT
Snubber
Secondary diodes
Potentiometer
Others
Kind of failure Component ref.Substitution of primary power board: yes no
Troubles evinced during repair :
TELWIN S.p.A. - Via della Tecnica, 336030 VILLAVERLA (Vicenza) Italy Tel. +39 - 0445 - 858811Fax +39 - 0445 - 858800 / 858801E-mail: [email protected] http://www.telwin.com
