S 15
PANEL INTERLOCKING(Siemens)
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
SURESH HELCHEL Instructor (Signal),IRISET/SC
oThis system is generally provided at way side stations or small installations. o In this system for clearing a signal the route has to be correctly set by
operating the points individually to the required position. o System is more flexible due to the provision of more number of
facilities such as emergency operations and recording the same through counters. o Grouping of relays, makes the system more economical, reliable and
flexible.
CHAPTER 1
INTRODUCTION
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
CHAPTER 2
TABLE OF CONTROL, ROUTE SECTION PLAN
o Selection Table/Control Table is a tabular representation of Signaling arrangements provided in a particular Signal movements.
o It comprises of several columns and furnishes the details about various operating conditions for clearing the signals concerned.
o The selection table for a station is helpful for designing the circuits of that station and also is used for undertaking functional test of various signaling functions existing in the yard.
o The details given in the selection table is the basis of Interlocking provided in that particular yard.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
ROUTE SECTION PLAN
Control Table S-1 TO LP2
S.
No.
Sig.
Route
Description of
Main & Co
Route
Push
Buttons
Route sections
(in the route)
Points Track Cct
Free in
GN UN Set Eliminat
ed
In RT In OV RT OV
1 S1(1) Up Home to
Up loop -2
S1 LP2 101C,
S1/3
101A,
101B
101N,
102R
107N or
(107R
108N)
202T,
204T,
205T,
LP2T
215T
(216T,21
7T W
107R)
OV
(for the route)
Sig to
ON
App.
lock
120s
Sig.Aspect A/Co
Marker
Route
Ind.
Lock
by CH
Gr.
Remarks
Y if YY if G if Set Eli.
OV113
Or
OV213
OV4
OV5
OV26
202T Dead
app.
lock
S13-
Y or
R
- - CO LH Gr.1,2 1.LC Closed
2. Locks Sh.16
move on U/D main
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
Control Table S1 Calling On
S.
No.
Sig.
Route
Description of
Main & Co
Route
Push
Buttons
Route sections (in
the route)
Points Track Cct
Free in
GN UN Set Eliminate
d
In RT In OV RT OV
2 Co.1(1) Up C-on to
Up loop -2
S1 LP2,
COGGN
101C,
S1/3
101A,
101B
101N,
102R
107N or
(107R
108N)
- -
OV
(for the route)
Sig to
ON
App.
lock
120s
Sig.Aspect A/Co
Marker
Route
Ind.
Lock
by CH
Gr.
Remarks
Y if YY if G if
Set Eli.
OV113
Or
OV213
OV4
OV5
OV26
- - - - - - - Gr.1,2 1.LC Closed
2. Locks Sh.16 move
on U/D main
3.201T
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
S1 to Main Line U/D Mn
S.
No.
Sig.
Route
Description of
Main & Co
Route
Push
Buttons
Route sections (in
the route)
Points Track Cct
Free in
GN UN Set Eliminate
d
In RT In OV RT OV
3 S1(2) Up Home to
Up main line
S1 U/D
Mn
101A,
S1/3
101B,
101C
101N,
102N
107N,
108N
202T,
204T,
205T,
216T,217
T
OV
(for the route)
Sig to
ON
App.
lock
120s
Sig.Aspect A/Co
Marker
Route
Ind.
Lock
by CH
Gr.
Remarks
Y if YY if G if
Set Eli.
OV14 OV4
OV5
OV26
202T Dead
app.
lock
S14-
Y
- S14
G
CO - Gr.1,2 1.LC Closed
S1 Calling On to Main Line
S.
No.
Sig.
Route
Description of
Main & Co
Route
Push
Buttons
Route sections (in
the route)
Points Track Cct
Free in
GN UN Set Eliminate
d
In RT In OV RT OV
4 Co1(2) Up C-on to
Up main line
S1 U/D
Mn,
COGGN
101A,
S1/3
101B,
101C
101N,
102N
107N,
108N
202T,
204T,
205T,
MnT
216T,217
T
OV
(for the route)
Sig to
ON
App.
lock
120s
Sig.Aspect A/Co
Marker
Route
Ind.
Lock
by CH
Gr.
Remarks
Y if YY if G if
Set Eli.
OV14 OV4
OV5
OV26
- Dead
app.
lock
-
- - - - Gr.1,2 1.201T
2.LC Closed
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
S1 to LP1
S.
No.
Sig.
Route
Description of
Main & Co
Route
Push
Buttons
Route sections (in
the route)
Points Track Cct
Free in
GN UN Set Eliminate
d
In RT In OV RT OV
5 S1(3) Up Home to
Up loop line-1
S1 LP1 101B,
S1/3
101A,
101C
101R,
102N
107N,
108R
202T,
204T,
205T,
207T,
LP1T
216T,217
T
OV
(for the route)
Sig to
ON
App.
lock
120s
Sig.Aspect A/Co
Marker
Route
Ind.
Lock
by CH
Gr.
Remarks
Y if YY if G if
Set Eli.
OV12 OV4
OV5
OV16
OV26
202T Dead
app.
lock
S12-R or
Y
- - CO RH Gr.1,2 1.LC Closed
2.Sdg point normal
S.
No.
Sig.
Route
Description of
Main & Co
Route
Push
Buttons
Route sections
(in the route)
Points Track Cct
Free in
GN UN Set Eliminate
d
In RT In OV RT OV
6 Co1(3) C-on to
Up loop line-1
S1 LP1
COGG
N
101B,
S1/3
101A,
101C
101R,
102N
107N,
108R
- -
OV
(for the route)
Sig to
ON
App.
lock
120s
Sig.Aspect A/Co
Marker
Route
Ind.
Lock
by CH
Gr.
Remarks
Y if YY if G if
Set Eli.
OV12 OV4
OV5
OV16
OV26
- Dead
app.
lock
-
- - - - - 1.201T
2.LC Closed
3.Sdg point normal
S1 Calling On to LP1
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
S.
No.
Sig.
Route
Description
of Main &
Co Route
Push
Buttons
Route
sections (in
the route)
Points Track Cct
Free in
GN UN Set Elimin
ated
In RT In OV RT OV
21 Sh.2(1) Shunt-Up main
to Up loop-2
Sh2 LP2 101C 101A,
101B
101N,
102R
- 205T -
OV
(for the
route)
Sig to
ON
App.
lock
120s
Sig.Aspect A/Co
Marke
r
Route
Ind.
Lock
by CH
Gr.
Remarks
Y if YY
if
G if
Set Eli.
- OV4,
OV5,
OV26
205T 204T - - - - - Gr.1 LC closed
Sh 2 to LP2
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
S.
No.
Sig.
Route
Description
of Main &
Co Route
Push
Buttons
Route
sections (in
the route)
Points Track Cct
Free in
GN UN Set Elimin
ated
In RT In
OV
RT OV
21 Sh.2(2) Shunt-Up main
to Up main line
Sh2 U/D
Mn
101A 101C,
101B
101N,
102N
- 205T -
OV
(for the
route)
Sig to
ON
App.
lock
120s
Sig.Aspect A/Co
Marke
r
Route
Ind.
Lock
by CH
Gr.
Remarks
Y if YY
if
G if
Set Eli.
- OV4,
OV5,
OV26
205T 204T - - - - - Gr.1 1.Locks
S19(1),Co19(1),
S12,S13
2. LC closed
Sh 2 to Main Line
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
S.
No.
Sig.
Route
Description
of Main &
Co Route
Push
Buttons
Route
sections (in
the route)
Points Track Cct
Free in
GN UN Set Elimin
ated
In RT In
OV
RT OV
22 Sh.2(3) Shunt-Up main
to Up loop-1
Sh2 LP1 101B 101A,
101C
101N,
102N
- 205T,2
07T
-
OV
(for the
route)
Sig to
ON
App.
lock
120s
Sig.Aspect A/Co
Marke
r
Route
Ind.
Lock
by CH
Gr.
Remarks
Y if YY
if
G if
Set Eli.
- OV4,
OV5,
OV16,
OV26
205T 204T - - - - - Gr.1 1.Sdg.Pt.normal
2. LC closed
Sh 2 to LP1
S 15 Panel Interlocking (Siemens)
CHAPTER 3
BUTTON RELAYS AND BUTTON CHECKING RELAYS
Buttons/Panel controls provided for the operation of panel is self- restore type push buttons.
oIt is mandatory to prove the integrity of all buttons in order to comply with the
o Operational requirement of panel.
o One operation at a time
o Conscious operation of panel.
o Proving of back contact of all buttons relays.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
• CHAPTER:2
GNR: Signal push Button Relay.
o GNR relay is provided in the respective Signal group.
o GNR is repeated by a GNPR.
o GNPR circuit entire station zone is grouped.
o Only one ‘GNPR’ will pick up at a time.
GNR Signal Push Button Relay
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
S 5
GNPR
S6
GNPR
GNCR
S1
GNR S 5
GNR S 6
GNR
S 7
GNR
GNCR1
V B 60
N 60
N 60
GNPR GNCR & GNCR1
S1
GNPR S
5
GN
PR
S
1
GN
PR
S
1
GN
PR
S
6
GN
PR
S
5
GN
PR
S
7
GN
PR
S
6
GN
PR
S 7
GNR
S
7
GN
PR
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
WN
CR
WW
NR
EW
NR
GNPR and GNCR Relays
o Only One GNPR picks up at a time. o A front contact of WNCR and back contact of WWNR, EWNR is proved
in the GNPR circuit to ensure that the point operation does not take place along with signal clearance .
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
UNR : Route push Button Relay.
UNCR: All Route push Button Normal Checking Relay.
oThe UNR relays are provided separately in a K-50 Mini groups. o which picks up when the respective Route buttons are pressed. oThe UNRs are repeated by UNPRs as required. o UNCR remains in the energised condition through the back
contacts of all the UNR and UNPR relays in series.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
UD MN
UNR LP 1
UNR LP2
UNR
217
UNR
UNCR
UD MN
UN LP 1
UN LP2
UN
217
UN
UD
MN
U
NR
L
P 1
U
NR
L
P2
U
NR
2
17
U
NR
UD
MN
U
NR
L
P 1
U
NR
L
P2
U
NR
2
17
U
NR
UNCR1
UNCR & UNCR1
V B 60
N 60
N 60
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
217
UNPR
2
17
U
NP
R
WNR : Point push Button Relay.
WNCR : All Point Button Normal Checking Relay.
o The WNR relays are provided separately in a K-50 Mini group o A common relay WNCR remains in the energised condition
through the back contacts of all the WNRS in series proving that no point button is pressed on panel. When any one of the button is pressed WNCR drops.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
21
101
WNR
102
WNR
107
WNR
108
WNR
WNCR
101
WN 102
WN 107
WN
108
WN
WNCR1
WNCR & WNCR1
V B 60
N 60
N 60
101
WN
R
102
WN
R
S 15 Panel Interlocking (Siemens)
101
WN
R
107
WN
R
IRISET Ver 1.0
108
WN
R
102
WN
R
1
07
WN
R
108
WN
R
Proving purpose Description Nomenclature
Activation Concerned button pressed GN/UN/WN pressed
Interlocking Other buttons of same type
not pressed
In GNPR cct : Other GNPRs not picked up
In UNR cct : Other UNPRs not picked up
In WNR cct : Other WNRs not picked up
CH / Common Point
Operation button /
Emergency Pt. operation
button not pressed
In GNPR, UNR, WNR :
CH/WW/EW NCR up proved
Normalization Checking Relays of other
types of buttons normal
In GNPR: WNCR up proved
In UNR: WNCR up proved
In WNR : GNCR,UNCR up proved
Special condition Authorized operation SM’s key in
Button Relays and Nomenclature
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
NNCR :- All Button Normal Checking Relay :
o When all the button checking relays (GNCR, UNCR, WNCR). o EUUYNR, EUYNR, EGGNR, ZDUCR, EWNR, WWNR and their
repeater relays are in dropped condition then the Button Normal Checking Relay NNCR relay energizes.
o This relay is made slow to release by the provision of 3000µfd condenser in series with 100 Ω resistance across the relay coil. Releasing time of NNCR is about 15 Seconds.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
NNCR :- All Button Normal Checking Relay :
V STN
GNCR
STN
UNCR
STN
Z1UR
MN
GZR
STN
ZDUCR MN
GNPR
SH
GNPR
SH
GZR
STN
WNCR STN
EUUYR
STN
EUYR
STN
EGNR
STN
OYNR
STN
COGGNR
STN
NNCR
100 Ohms
3X1000
mfd
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
B 60
N 60
SIGNAL OPERATION
Signal clearance takes place in three stages……. 1. Signal and route initiation. 2. Route section setting & Overlap setting. 3. Clearance of signal.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
CHAPTER 4
SIGNAL OPERATION
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
Direction determining relay circuit
Proving purpose
Description Nomenclature
Activation Concerned signal & route buttons pressed
GNPR Up, UNPR Up
Normalization
Either side RS & OV setting relays normalized
U(N)S Up or U(R)S Dn
OVZ2U(N)R Up or OVZ2U(R)R Dn
Interlocking condition
Dir. Determining Relay normal to pick-up R-coil & reverse to pick-up N-coil
ZU(N)R Up for ZU(R)R
ZU(R)R up for ZU(N)R
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
204
UNR
S 4
GNPR
SH16
GNPR
S19
GNPR
UD MN
UNPR
UD Mn
ZU(N)R
UD Mn
ZU(N)PR
UD Mn
ZU(N)PR
UD Mn
ZU(R)PR
UD Mn
ZU(R)R
GNCR
UNCR
UD Mn
ZU(R)PR
UD Mn
ZU(R)R
UD Mn
ZU(R)R
UD Mn
ZU(N)R
UD Mn
ZU(N)PR
107 A U(N)PS
101 A U(N)PS
OV-4 Z2U(R)R
OV-14 Z2U(R)R
Direction determining relay ZU(R/N)R
V B 60
N 60 S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
ZU(N)R ZU(R)R
SH G(R/N)R Shunt or Main Signal selection Relay:
o This is a interlocked relay provided to achieve interlocking between Main signal & Shunt signal leading towards the same direction.
o When SH G(N)R picked up, it permits Main signal/Calling ON Signal route initiation and
o when SH G(R)R picked up, it permits Shunt signal route initiation.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
30
Sh GNR
Sh GN
Sh GNPR
UNR
UNPR
UN
UNCRGNCR
Sh G(R)R
GNCR UNCR
U(N)S Concern Route Section
OVZ2U(N)R Concern Overlap NormalSh G(N)R
U(N)S Concern Route Section
OVZ2U(N)R Concern Overlap Normal
SH G(R/N)R
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
31
Following Conditions are proved in SH G(R/N)R:
SH G(N)R:
o Ensures that no Signal buttons and route buttons are in pressed condition.
o All the route sections & overlaps falling in the SH-signal route are Normal.
o SH G(R)R front contact is used as a economizer contact.
SH G(R/N)R
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
SH G(R/N)R
V
GNCR
UNCR
Sh 2
G(R)R
Sh 2
G(N)R
OV 4 Z2U(R)R
OV 5 Z2U(R)R
OV 6 Z2U(R)R
101 C U(R)PS
101 B U(R)PS
101 A U(R)PS
UNCR
Sh 2 GNR
Sh 2
G(R)R
Sh 2 G(N)R
SH G(R)R :-
o Shunt signal button and concerned route button is pressed.
o All the route sections & overlaps falling in the SH-signal route are Normal.
o SH G(N)R front contact is used as a economizer contact.
B 60
N 60
Z1UR Sub route initiating relay:
o For each sub route one relay is provided . oThis relay pick up during route initiation for signal clearance
and also during emergency full route cancellation
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
GNCR
UNCR
Z1UR
Z1UR: Sub Route initiating Relay o Used in Sub Route Initiation Circuit. o Used in Sub Route Cancelation. o Sub routes are initiated in the 2nd Stage of Signal clearance i.e. setting of routes sections.
Z1UR Sub route initiating relay:
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
Z1UR Circuit
Proving purpose Description Nomenclature
Previous state
(Buttons identified)
Concerned signal & route buttons pressed & proving relays up;
GNPR Up, UNPR Up
Button checking relays down GNCR, UNCR Down
Activation Concerned Direction Determining Relay condition
ZU(R)R Up or ZU(N)R Up as per direction of movement
Interlocking checks
Detection of points in the OV/ Isolation
NWKR/RWKR
Special condition Previous sub-routes initiated Z1URs of previous sub-routes Up
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
Signal and Route Permissibility Checking:
oMain GZR : Main Signal Initiation relay.
o Sh GZR : Shunt Signal Initiation relay.
o ZDUCR : Zonal Route permissibility checking relay.
ZDUCR relay operates only after the energization of
MN and Shunt GZR.
o Calling ON signal clearance ZDUCR relay energizes directly as there is no GZR .
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
37
Mn
GNPR
Sh 2 G(N)R
204 ZU(N)R
S1 GNPR
Sh 2 GNPR
Sh 2 G(R)R
204 ZU(N)R 1/3 Z1UR
1/3 Z1UR UP Dep
UNR
101 Z1UR 101 Z1UR
Sh
GNPR
UNCR
GNCR
Main and Shunt Signal(Selection) Initiation Circuit
1 2 1 Main Signal Initiation
2.Shunt Signal Initiation
V
B 60 N 60
N 60
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
Sh
GNPR
Mn
GNPR
UNCR
GNCR
Mn
GZR
Sh
GZR
Mn
GZR
Sh
GZR
Sh
GZR ZDUCR
CO
GGNR
Mn
GZR Mn
GZR
Sh
GZR
1 2 3 4 5
Mn GZR: Main Signal Initiation Relay.
Sh GZR : Shunt Signal Initiation relay.
In the Route In the Overlap
1 Main Signal Initiation
2.Shunt Signal Initiation
3.Mn GZR
4.Sh GZR.
5.C-ON
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
GZR & ZDUCR CIRCUIT
EUUYNCR
ZDUCPR
MN
GZR
SH
GZR COGGNR
ZDUCR
ZDUCR
2
MN GZR
3
SH GZR
SH GNPR
EUYR
EUUYR
4
SH GZR
MN GNPR
MN GZR
COGGNR
SH GZR
EUUYNR
EUYNR
EUUYNR
OUT IN
Between In and out checks GN
& UN is pressed and the
overlap s are not set S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
RELEASE OF SIGNAL LOCKING
UNCR OVZ2U(N)R
G(N)LR
GNCR OVZ2U(N)R
TO THE LEFT
OF THE ROAD
TO THE RIGHT
OF THE ROAD
ROAD
o Main Signal is cleared, a Signal Locking Relay for the road, G(R)LR latches for locking all conflicting Signals of the road.
o Its normalization is proved during initiation of any Signal of the road to provide for its direct interlocking with other Signals of the same road.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
RELEASE OF SIGNAL LOCKING PROVED IN INITIATION
B 60
GNCR
UNCR
LP1
G(N)LR
LP1
G(R)LR
OV1 6
Z2U(N)R
N 60
OV2 6
Z2U(N)R
OV 12
Z2U(N)R
o G(R)LR Signal locking Relay. o This relay latches in normal as soon as a
concerned Signal Overlap is normalized following the concerned route release as shown below
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
Route Section and Overlap setting
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
Signal Lock stick relay
Overlap Setting relay
Route Section Setting
relay
Overlap setting sequence
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
B 60
Mn
GZR
ZDUCPR
OV1 6
Z2U(N)R
OV 4
Z2U(N)R
OV 5
Z2U(N)R
OV2 6
Z2U(N)R
N 60
S19
GNPR
LP1
UNR
101/101
RWKPR
102/102
NWKPR
OV2 6
Z2U(N)PR
OV1 6
Z2U(N)PR
OV2 6
Z2U(R)R
OV2 6
Z2U(R)PR
101/101
NWKPR
OV1 6
Z2U(R)R
OV1 6
Z2U(N)R
Overlap setting
Conditions: 1. Concerned GN & UN Buttons are pressed. 2. Route is initiated(ZDUCR) 3. Points in the Overlap is detected. 4. Conflicting Overlaps are Normal.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
Route Section Setting Relay Circuit
Conditions: o Z1UR Up & ZDUCR Up o Conflicting Route Section of same sub-route normal. o Conflicting Overlap falling on same sub-route normal
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
108 U(N)LR
108 B
U(R)PS
108 B
U(N)PS 108 B
U(N)PS
S V
108 B DUCR
108 Z1UR
ZDUCR
107 NWKR
108 RWKR
107 A U(N)PS
107 B U(N)PS
OV 12
Z2U(N)R 2 17
ZU(N)R
OV 13
Z2U(R)R
OV 14
Z2U(R)R 108 B
U(R)S
UYR1
UYR2
108 B
U(N)S
ROUTE SECTION
SETTING
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
108 B
U(R)S
216 TPR
UYR1
UYR2
107 NWKR
108 RWKR
108 B
U(N)S
107 NWKR
108 RWKR
108 UDKR 108 B
DUCR
108 Z1UR
108 U(N)LR
108 UDKR
108 B
DUCR
108 U(R)LR
EUYR
Mn GZR
Sh GZR
Route Section Checking and Locking
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
MAIN SIGNAL CONTROL Signal Lock Stick Relay Circuit
Proving purpose Description Nomenclature
Previous state Concerned Sig. & Rt. Button Pressed GNPR Up, UNPR Up
Direction determining relay ZU(R)R
Mn signal initiated Mn GZR Up
Route permissibility available ZDUCR Up
Activation Route sections set U(R)S Up
Interlocking check Opposing signal button Pressed Dn Opposing signal GNPR Dn
No Emergency cancellation operation underway
EGNR Dn
Co. Signal Aspect not initiated Co.ULR1 Dn
Normalization Check
Signal aspect control initiation relay normal
GPR1 Dn
49
Signal Lock Stick Relay Circuit
GNPR UNPR
GZR
ZDUCR
U(R)S
GPR1
EGNR
GLSR
U(R)S
COLUR1
GLSR
Holding Path
S 15 Panel Interlocking (Siemens)
OVZ2U(R)R
11.8
ZDUCR
Mn GZR
S12 GNR
LP1 UNR
108 B U(R)S
217 ZU(R)R
15/19 U(N)S
S V
GNR
COULR2
15/19 U(R)S
GLSR
GLSR
GPR1
EGNR GLSR
S19
GLSR Holding Path
MAIN SIGNAL CONTROL AND SIGNAL LOCKING
GR1
GR(L)R
GPR1
GLSR
GR2
Signal OFF
HECR
Signal LockingStick Feed to
GLSR Disconnects
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
GR1 Signal Controlling Relay No 1
1. GR1 picks up proving the following conditions:
o Signal in advance is not blank
o Interlocking with conflicting Main Signals on the road and with all conflicting Shunt signals is ensured.
o Overlap is set, its Point and Track detections are continuously available.
o Route and Berthing tracks are clear Route sections are checked and locked.
o Signal button is released.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
53
GR1 Signal Controlling Relay No 1
o GR1, sticks through its own energised contact because
o When GLSR drops subsequently.
o Even if signal button is pressed unintentionally later.
o GR1 also has a condenser discharge circuit ,to prevent its dropping due to track circuit flickering.
o EGNR dropped contact is proved in GR1 circuit so as to drop it and put back the Signal to 'ON' aspect by an emergency operation.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
54 S 16 Route Relay Interlocking (Siemens) IRISET Ver 1.0
Signal Controlling Relay
GR1
Signal Controlling Relay No 1 o Made slow to release to prevents signal going
to danger, in case of track circuit flickering.
Conditions to pickup : o GLSR is pickup. o Signal Buttons are released. o Signal in advance is not blank. o OV is set and point is detected. o Track Circuits are free. o Concerned DUCR pickup (Points in the Route is checked ).
S 4
HECR
S 4
RECR
S 4
HECR
OV Tracks
OVZ2U(R)R
OV Point
N/RWKR
Berthing Track
107 A DUCR
107 U(R)LR
Track Circuits
in the run
S 15/19
UDKR
11.9
EGNR
100 Ohms
5 Watt
500 Mfd
27
S19 GNR
GLSR
GR1
GR1
S V
GR1
56
G(R)LR :- Signal locking Relay :
oThis relay is an interlocked relay. The energization of top relay G(R)LR locks the signal and bottom relay G(N)LR unlocks the signal.
oThe signal locking relay is provided one for every exit track and is common for both directions.
o It prevents the clearance of any other signal for that line from any direction after a signal has been cleared.
oThis relay is named after the Exit or Berthing track.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
57
UECRConcern
NWKR
ZU(R/N)R
All TPRS
DUCR
U(R)LR
GPR1
GLSR
G(R)LR
G(R)LR :- Signal locking Relay :
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
58
GR2 to clear the Signal along with GR1:-
GR2 proves the following conditions: -
o Signal in advance is not blank.
o Interlocking with conflicting, Main and Shunt Signals is ensured.
o Overlap is set, its Points and Tracks are detected.
o G(R)LR is operated to lock all conflicting Signals of the road.
o Route Indicator is lit or Route Points are in Normal.
o GLSR dropped after the operation of GR1.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
S 4
HECR
S 4
RECR
S 4
HECR
OV Tracks
OVZ2U(R)R
OV Point
N/RWKR
Berthing Track
107 A DUCR
107 U(R)LR
Track Circuits
in the run
S 15/19
UDKR
GR2
S V
GR2
UD Mn
G(N)LR GLSR
S 4
HECR
S 4
RECR
S 4
HECR
GR2
S V
GR2
GLSR
GR1
GLSR
G(R)LR
G(N)LR
61
CLEAR ASPECT CONTROL: GR3
NWKPRSDECPRRECPR
SIG. IN
ADV.Rt. PT
GR2
GR3
Sig. to be CLEARED
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
62
Main Signal Lamp Control Circuit
o Both GR1 and GR2 contacts are proved in HG aspect control.
o While GR3 (with double cutting) is proved to light DG lamp, GR4 (with double cutting) is proved in HHG lamp control in addition to GR2.
o RG lamp circuit proves only GR2 back contact or OFF ECR back contacts.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
63
80 Ohms
50 W
RED
RECR
GR2
DECR
HECR
0.6 A
f 5/2
0.6 A
f 6/2
0.6 A
f 7/2
0.6 A
f 9/2
80 Ohms
50 W
YELLOW
HECR
GR3GR3
DECPR
80 Ohms
50 W
GREEN
GR3
GR1
GR2
DECPR
GR1
GR2
GR3
0.6 A
f 8/2
0.6 A
f 10/2
GR3
DECR
Main Signal Lamp Control Circuit
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
64
SHUNT SIGNAL CONTROL
SH-GLSR is normally kept energised proving that:
o The concerned Route sections are normalised after previous operation.
o Overlaps of Signals in opposite direction falling in the Shunt Signal Route are normal to interlock them with the Shunt Signal to be taken off.
o GR1 dropped after previous operation.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
65
Sh GZR
Sh GNR
GLSR
U(N)S
OVZ2U(N)R
Sh GR1
Normal PathStick Path
Sh
GLSR
Shunt Signal GR1 GR2
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
66
Shunt Signal GR1 GR2
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
67
Shunt Signal GR1 GR2
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
68
CALLING ON SIGNAL CONTROL
Relay Description Purpose
COATR CO Signal Approach Track Relay
Proves train halting at the CO Signal before its clearance.
COULR1 CO Signal Route Locking relay - 1
Proves CO Signal Route setting and its interlocking to set time for its clearance.
AJTR1 App Lock Release Time control relay - 1
Proves the operation of COULR1 for setting time to clear CO Signal.
AJTR2 App. Lock Release Time control relay - 2
Proves dropping of Time Setting relay AJTR after previous operation.
Relays involved in this are:
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
69
Relay Description Purpose
AJTR3 App. Lock Release Time control relay - 3
Proves the operation of AJTR for clearance of a particular signal
COULR2 CO Signal Route Locking relay- 2
Clears C.O. Signal after necessary time lapse.
AJTR
App. Lock Release Time Setting relay
Sets a pre-determined time for CO Signal clearance as well as for App. Lock Release.
Relays involved in this are:
CALLING ON SIGNAL CONTROL
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
70
CALLING ON SIGNAL CONTROL
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
71
C-ON TIMER CIRCUIT
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
72
C-ON TIMER CIRCUIT
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
73
COULR2
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
74
COECR(Lamp Circuit)
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
75
CHAPTER 5
AUTOMATIC ROUTE RELEASE
Relay Description Purpose
UYRI Sub Route Release Relay - 1 Operate sequentially as the train moves ahead in the Route section to release it from approach locking
UYR2
Sub Route Release Relay - 2
UDKR
Route Clear Indicating relay Operates to release back locking on Route section when the train completely passes out of it.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
76
CHAPTER 5
AUTOMATIC ROUTE RELEASE
Relay Description Purpose
ZR Track Circuit Power Supply
Checking relay.
Proved energised during app. lock release to ensure that TPRs drop only with train movement.
U(R)LR U(N)LR
Sub Route Locking relay Sub Route Releasing relay
Normalised to release locking on a set Route Section..
U(R)S U(N)S
Route Section Setting relay Route Section Normalizing
Normalised to make Points and Slots in the Route Section free.
G(R)LR G(N)LR
Signal Locking relay Signal Unlocking relay
Normalised to release locking on Signals conflicting, with the cleared Main Signal.
OV- AJTR2
Overlap Release Time Control relay no.2
Proves necessary conditions for Overlap release before setting time.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
77
RELEASE OF INDICATION LOCKING:-
TPR
GR1
SIG. OFF
GR2
GPR1
Route Indicator
Extinguished
UECR
RECR HECR DECR
GR3SIGNAL ON
On Route section set for a Main Signal
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
78
On Route Section set for a Shunt Signal RELEASE OF INDICATION LOCKING
TPR Sh. SIGNAL
OFF
GR2
RECR HECR
Sh. SIGNAL
ON
1 R/S
SH SH
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
SUBJECT IRISET- temporary 79
On Route section set for a Calling 'ON' signal RELEASE OF INDICATION LOCKING
o As train enters the Route, clearing CO Sig. Approach track,
COATRCO SIGNAL OFF
COULR1
CO ECR
CO.Signal
Extinguished
COULR2
80
Route Release Circuit
As train moves in the route section, UYR1 operates first proving that the train occupied the first two R/S track circuits as below
201 BT
S10101
101 A
S1
201 AT
S11
101 B
LLT
MLT
1T
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
81
UYR1 Route Section Releasing Relay No 1
UYR1 Ensures o TPRs dropping caused by track circuit power supply failure
does not release the locking.(ZR). o Also, at this stage UDKR is proved de-energised after
previous operation during Route checking, so that it can pick up again when the train passes out of Route section later.
o UYR1 sticks first through its own operated condition and then through UDKR de-energized condition until the operation of UYR2
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
82
UYR1 Route Section Releasing Relay No 1
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
201 BT
S10101
101 A
S1
201 AT
S11
101 B
LLT
MLT
1T
83
UYR2 Route Section Releasing Relay No 1
o UYR2 picks up after UYR1 as the train progresses and clears the first control track of the route section as below:
o Berthing track is proved occupied for operating UYR2 of the last section of Route.
o UYR2 also sticks in two stages just as UYR1 sticks after operation until the Route section is normalized as below:-
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
201 BT
S10101
101 A
S1
201 AT
S11
101 B
LLT
MLT
1T
84
UYR2 Route Section Releasing Relay No 1
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
201 BT
S10101
101 A
S1
201 AT
S11
101 B
LLT
MLT
1T
85
Back locking release
o As the train clears all the concerned Route section track circuits
201 ATPR
101 UDKR
101A U(R)S
201 BT
S10101
101 A
S1
201 AT
S11
101 B
LLT
MLT
1T
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
86
ROUTE SECTION RELEASE AND NORMALISATION
U(N)LR & U(N)S
Z1UR GLSR HECR COULR1 DECR HECR RECR GR1
UDKR
U(N)LR
U(N)S
UYR2 UDKRUYR1
UYR2UYR1
GPR1 GR2 GR3
Fig. 5.8
Concerned Sh. SignalsConcerned Main Signals
Concerned
Co. Sig.
(Indication Locking Free)
(Back Locking Free)
(Route Section Locking Released)
(Route Section Normalised)
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
87
OVERLAP RELEASE FOR MAIN SIGNAL ROUTES
oThe Overlap gets released after a time lapse of 2 minutes oWhen the train occupying berthing track. o Provided the last Route section is released. oTo set time for Overlap release, OV-AJTR and OV-AJTR3 operates.
Fig. 5.15
OV Track ROAD
ZU(R/N)R
R/Ss in
overlap
U(R)S TPRS
LAST
R/S
U(N)PS
OVZ2U(N)R
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
88
OVERLAP RELEASE FLOW CHART
OVZ2U(R)R TPR AJTR
AJTR3
Concerned
Berthing
Track OV OV
AJTR2
OV
OV AJTR2
OV AJTR
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
89
OVERLAP NORMALISATION WITH TIMER FLOW CHART
OV Last R/S
U(N)PS
OVZ2U(N)R
OV
AJTR2 AJTR3
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
90
OVERLAP NORMALISATION IN CASE OF RUNTHROUGH
OV Track ROAD
ZU(R/N)R
R/Ss in
overlap
U(R)S TPRS
LAST
R/S
U(N)PS
OVZ2U(N)R
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
91
Emergency overlap release with OYN button.
LAST
R/S
U(N)S
OV
OYN LP1UNR
LP1UN
OVZ2U(N)R
OYZ
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
SUBJECT IRISET- temporary 92
OVERLAP NORMALISATION WITH FULL ROUTE CANCELLATION
CONCERN
UNPRMn GNPREUUYNCR
EUYR Full Route Cancellation Relay
U(N)S Last Route Section Normal
OVZ2U(N)R
93
N 60
B 60
GNCR
LP1
G(N)LR
LP1
G(R)LR
UNCR
OV1 6
Z2U(N)R
OV2 6
Z2U(N)R
OV 12
Z2U(N)R
Signal unlocking G(N)LR
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
94
CHAPTER 6
EMERGENCY OPERATIONS
Relay Nomenclature Description Purpose
GNR Signal Button Relay Proves Signal Button operation.
EGGNR Emergency Signal Replacement Button relay
Proves Button operation in circuits.
EGNR Emergency Signal Replacement control relay
Cuts off GR1 circuit to replace Signal at 'ON'
STN- EUUYNR
Emergency Route Release Button Relay (common for the station yard.)
Proves Button operation in circuits.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
95
CHAPTER 6
EMERGENCY OPERATIONS
Relay Nomenclature
Description
Purpose
STN-EUYNR Emergency Route Section Release Button relay (Common for the station yard)
Proved dropped in EUUYNR circuit
EUUYNCR
Relay proving Route Initiation during Emergency Route Release.
Route Initiation during Emergency Route Release.
STN-EUUYR Emergency Route Release Relay (common for station yard
Releases all route sections of the Route with manual operation in emergency.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
96
Nomenclature Description
Purpose
STN-EUYR Emergency Route Release relay (common for a station yard).
Releases concerned R/Sections both during full Route release and Individual R/S release operations.
MN-GNPR
Common relay to prove the operation of any MN-GNR.
Provided to save individual GNR contacts while proving their operation in circuits.
SH-GNPR Common relay to prove the operation of any SH-GNR
Provided to save individual GNR contacts while proving their operation in circuits.
CHAPTER 6
EMERGENCY OPERATIONS
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
97
Emergency Operations
GN and EGGN are pressed together and released.
Fig. 6.1
Mn Signal
or Sh Signal
EGGNR
EGGN
EGNR
GN / Sh GN
GR2
Sig. ON
RECRDECRHECR
or
Fig. 6.2
EGGNR
EGNR
GN
CO. SIG. EXTN.
CO ECR
Mn or Shunt Signals C.O. Signlas
COULR1 COULR2
EGGN
Mn Signal
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
98
o Now to release the Route, GN and EUUYN are pressed. Then releasing EUUYN and keeping GN pressed, UN is pressed.
Emergency Operations
EUUYNGN
EUUYNR
GNR EUUYNR
EUUYNCR
Z1URS ZDUCPREUUYNR
Concerned
R/S
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
99
FULL ROUTE CANCELLATION WITH TIME DELAY
U(R)PS GR1 GLSR COULR2 GNPR EUUYNCR AJTR3
1st R/S Main Signal CO. Signal
AJTR2
AJTR1
Main Signal
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
100
FULL ROUTE CANCELLATION WITH TIME DELAY
AJTR3AJTR
AJTR2
AJTR120 Sec
AJTR1
AJTR
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
101
Z1URS EUUYNCR GNPR UNPR AJTR3
Mn. Signal
AJTR1
COULR1
CO. SIG.
HECR GPR1DECR
STN. EUUYR
TPRs
R/S Except
Berthing Track
U(N)S
or
1st R/SMn. Signal Mn. Signal Mn. Signal
R/S
RECR
FULL ROUTE CANCELLATION WITH TIME DELAY
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
102
EMERGENCY ROUTE SECTION RELEASE
EUYNR
EUYN
EUYNR
EUYN
KEY IN
EUYZ
EUYR
EUUYNR
STN.
STN.
STN.
WWNRWNR
Concerned
WN
EWNR
COUNTER
STN.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
103
SLOT CONTROL
POINT CRANK HANDLE KEY RELEASE
Nomenclature
Description
Purpose
YNR, Point Group-1 Crank Handle Release Button relay etc.
Represents button operation in circuits.
YYNR Common Slot Release Button Relay. Represents button
operation in circuits.
YRNR Common Slot Return ack. Button Relay.
Represents button operation in circuits.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
SUBJECT IRISET- temporary 104
Nomenclature Description
Purpose
CH1KLCR, Crank Handle key locked ‘IN’ Proving relay for Pt.Group1, 2 etc.
Proves the condition of CH key at site. This is provided in the cabin.
CH1-KLR, Crank Handle Key Lock Relays. Mechanically lock the point CH key
when inserted to release it on receiving slot from the cabin.
Y(R)R Crank handle Slot Release relay.
Releases key at site when latched in reverse
Y(N)R
Crank handle Slot Normal Relay slot after key is reinserted at site
SLOT CONTROL
105
Sequence of Relay operation
CHYNR YYNRU(N)SOVZ2U(N)R
CHY(R)R
CHKLCR
CHKLCR
CH-YNR YRNR
CH-Y(N)R
CHYN YRN
CHKLR
CH Key can be
Extracted
CH Key is
Re-inserted
& Turned
CHKLR
CHYN YYNCH PUSH BUTTON
ON CHKLR UNIT
PB
CONTROL PANEL CH LOCATION
CHYZ
_
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
106
POINT OPERATION Point Control Initiation Sequence
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
107
Point Operation Sequence
Motor
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
108
Point Detection Sequence
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
WR
MOTOR
WKR3
WJR WKR2
WR
W(N)R
WKR3
WKR1
Z1WR1
109
Normal /Reverse Detection
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
110
Z1WR1 Circuit (Group Initiation)
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
111
Control initiation for R to N operation: Energizing WJR after Z1WR1
o Point is already in reverse position, (R)WLR front contact is available.
o WJR picks up with availability of Z1WR1 front contact .
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
112
WJR pick-up causes dropping of WKR1 & then RWKR
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
(R)
WLR
Z1WR1
WJR
Z1NWR
W(N)R
WKR3
WJR
WKR2
39 Ohms
250 mfd
WKR1
WKR2
WKR3
W(R)R
M2
NC (R)WLR
WKR2
W(R)R
RD M1
RD M2
(R)WLR
W(R)R
WJR
RWKR
WKR1
WJR WKR1 RWKR
113
WNR
EWNR
TP1P2R
WWNR
W(N)R
WKR1
Z1WR1
Z1WR1
1
2 Z1WR1
W(R)R
Z1WR1
W(R)R
Point Control Initiation : N to R Pick-up of W(R)R, Z1WR1 -1 drops & Z1WR1-2 picks up)
TP1P2R
V V
o First coil Z1WR1 (1) drop as W(R)R pick up.
o Second coil is pickup through W(R)R contact.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
114
WNR
Z1RWR
WWNR
W(R)R
W(R)LR
W(N)R
(N)WLR Z1NWR(1)
Z1NWR
Z1NWR 1
2
WKR3
WKR2
WR
Z1RWR Z1NWR WKR2
270 Ohms
Z1NWR pick-up , WKR2 pick-up & (N)WLR pick-up circuits
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
115
Z1NWR pick-up , WKR2 pick-up & (N)WLR pick-up circuits
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
Z1NWR
WR
(R)WLR
(N)WLR
o W(R)R Pickup causes Z1NWR to pick up. o Z1NWR first coil is up due to button
contact ,hence second coil is pickup. o Z1NWR up and (R) WLR up causes
(N)WLR to pickup. o Point at site is reverse and group is
normal, this causes WKR2 to pickup. o WKR2 sticks through its own contact as
Z1NWR will be drop after (N)WLR up.
116
WR
W(N)R
Z1NWR
Z1RWR
WKR2
WJR
WR
R3 600 Ohms
Point Operation Circuit : R to N WR pick-up & point operation
WR
W(R)R
(N)WLR
NC NC
NF NF
M2 M1
WR
W(R)R
CH CH
V V B 110
B 60
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
117
WR
W(R)R
(N)WLR
B 110 N 110
ND(M2)
ND( M1)
W(N)R
W(N)R o WKR3 picks up by 110 V Operation supply to prove the “End of point” Operation. An resistance of 1000 Ohms /1W is provided across the coil of WKR3 relay, to protect the coil of this relay, when its picks up by 110 V.DC supply.
1000
Ohms
WKR3 1
After Point Operation (R to N) WKR3 pick-up & WJR drop
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
118
Z1NWR Z1RWR
W(N)R
WKR3
WJR
WKR2
WJR 39 Ohms
250 mfd
(R)
WLR3
Z1WR1 Pick up of WKR3 drops WJR relay.
After Point Operation (R to N) WKR3 pick-up & WJR drop
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
WKR3 pickup causes WKR 2 drops
WKR3
WKR2
Z1RWR Z1NWR WKR2
WR
270 Ohms Pick up of WKR3 drops WKR2 relay.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
120
W(N)R PICK UP(N to R ) and WKR3 drops
WR
WKR2
W(R)R
W(N)R
IRISET Ver 1.0 S 15 Panel Interlocking (Siemens)
W(N)R
Z1WR1
WKR3
WKR3 2
WKR2
WKR3
W(R)R
M1
NC
(R)WLR
WKR1
WKR2
W(R)R ND 1ST MC
ND 2nd MC
(N)WLR
WJR
W(R)R
Point Detection Establishment : WKR3 drops after it’s role of withdrawing WKR2, WJR, WR & WKR1 picks-up
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
NWKR Circuit
WKR1 &(N)WLR pick-up NWKR
WKR1
(N)WLR
CH KLCR
CH Y(R)R
NWKR
NWKR NWKPR
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
Normal to Reverse Operation
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
Z1WR1
Point Group Control Initiation
Z1WR1: First Relay to pick up, in point group to initiate controls for point group during point operation.
Z1WR1 1
WNR
EWNR
TP1P2R
WWNR
W(N)R
2 Z1WR1
W(R)R
Z1WR1 TP1P2R
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
WKR3 (N TO R ) Point Controlling Relay No 3
Normal to Reverse Operation:
WKR3 picks up twice
o With 60 Volts DC for breaking detection.
o With 110 Volts DC after complete operation.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
WKR1 (N TO R ) Point Controlling Relay No 1
W(N)R
WKR2
WKR3
WJR ND
ND
WKR1
o Field controlling relay. o Detect the correct setting of point. o Coil of WKR2 ensures correspondence of
point. o WKR3 contact is proved to break detection for
Normal to Reverse operation. o WJR contact is proved to break detection for
Reverse to Normal operation.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
W(R)R (N TO R )
WNR
EWNR
TP1P2R WWNR
W(N)R
WKR1
Z1WR1
Z1WR1 1 2
Z1WR1
W(R)R
Z1WR1
W(R)R
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
WKR3 Drop as W(R)R pickup (N TO R )
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
Z1RWR (N TO R ) Reverse Control initiation
WNR
Z1NWR
WWNR
W(R)R
W(R)LR
W(N)R
(N)WLR Z1RWR
Z1RWR
Z1RWR 1
2
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
130
WKR2 picks up.
•Z1RWR UP.
•WR DOWN.
•WKR2 PICKS UP THROUGH 270 Ohms Resistance and then sticks through its own contacts. Because feed to Z1RWR Second Coil will cut off ,When (R)WLR 3 picks up
WKR 2 (N TO R )
Z1RWR Z1NWR WKR2
WKR3
WKR2
WR
270 Ohms
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
131
WJR (N TO R )
Z1NWR Z1RWR
W(N)R
WKR3
WJR
WKR2
WJR 39 Ohms
250 mfd
(R)
WLR
Z1WR1
WJR Point Timer Relay picks up…… o Z1RWR(2) is pick up. o WKR2 is pick up as out of correspondence
is established o Holding path is provided as Z1RWR will be
drop due to pickup of (R)WLR3. o WJR sticks through its own contact, and
control the feed for point operation for at least 10 Seconds.
11.8
(R)WLR
¾.19 WR
Z1RWR
(N)WLR
(R)WLR Reverse control locking
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
133
Z1RWR N TO R drops
WNR
Z1NWR
WWNR
W(R)R
W(R)LR
W(N)R
(N)WLR Z1RWR
Z1RWR Z1RWR
1
2 (N)WLR
Z1RWR :
o First Coils up due to Button press contact,
hence second coil is prepared
o Z1RWR drop as (R)WLR3 Picks up
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
134
Z1RWR drop
WNR
Z1NWR
WWNR
W(R)R
W(R)LR
W(N)R
(N)WLR Z1RWR
Z1RWR
Z1RWR 1
2 (N)WLR
R2 220 Ohms
o Pick up of (R)WLR3 relay short the supply.
o Hence an resistance of 220Ohms is provided
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
135
WR (N to R)
WR
W(N)R
Z1NWR
Z1RWR
WKR2
WJR
WR
Note: due to high inductance of WR Coil, caused by its initial pick up current surge, back e.m.f is generated causes a high current to be discharge through rectifier across it and to avoid interference of this current with other circuit WR back contact is included.
R3 600 Ohms
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
136
Z1WR1 Drops (N to R)
2
WR
W(R)R
Z1WR1
Z1WR1
oFinally pickup of WR relay Cut off the supply of Z1WR1 relay.
137
Point is in Normal. o Machine contacts no.2,2a(R.C) & 3,3a(ND) is making. o As a Right Hand Cross over machine no.1 will operates first and through the make contact of machine no.1 machine no.2 will operate.
Point machine operation (N to R)
WR
W(R)R
(R)WLR
RC(1ST M)
RD(1ST M)
RC(2nd M)
W(R)R
WR
W(N)R
B 110 N 110
S 16 Route Relay Interlocking (Siemens) IRISET Ver 1.0
138
WKR3 PICKS UP 110VDC(N to R )
WR
W(R)R
(R)WLR
B 110 N 110
RD(1ST M)
RD(2ND M)
W(N)R
W(N)R o WKR3 picks up by 110 V Operation supply to prove the “End of point” Operation. An resistance of 1000 Ohms /1W is provided across the coil of WKR3 relay, to protect the coil of this relay, when its picks up by 110 V.DC supply.
1000
Ohms
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
WKR3
139
WKR 2 drops(N to R )
WKR3
WKR2
Z1RWR Z1NWR WKR2
WR
270 Ohms Pick up of WKR3 drops WKR2 relay.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
140
WJR drop (N to R)
Z1NWR Z1RWR
W(N)R
WKR3
WJR
WKR2
WJR 39 Ohms
250 mfd
(R)
WLR3
Z1WR1 Pick up of WKR3 drops WJR Relay.
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
141
WR Drops (N to R)
WR
W(N)R
Z1NWR
Z1RWR
WKR2
WJR
WR
R3 600 Ohms
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
142
W(N)R PICK UP(N to R )
WR
WKR2
W(R)R
W(N)R
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
143
WKR3 Drops(N to R )
WR
W(R)R
(R)WLR
B 110 N 110
RD(1ST M)
RD(2ND M)
W(N)R
W(N)R
1000
Ohms
WKR3
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
144
WKR1 (Reverse Detection)
WKR2
WKR3
W(R)R
M2
NC
(R)WLR
WKR1
WKR2
W(R)R RD 1ST MC
RD 2nd MC
(R)WLR
WJR
W(R)R
S 15 Panel Interlocking (Siemens) IRISET Ver 1.0
THANK YOU
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