IFM Electronic G1501S Instruction manual

Connection
examples *6
Performance_Level: e to
DIN EN ISO 13849-1
SIL 3 to DIN EN 61508
Category 4 to EN954-1
We reserve the right to make alterations without prior notice
ifm electronic.gmbh Date: 22.03.07
page
1
of
15
Connection examples
for wiring the safety relay
G1501S

Connection
examples *6
Performance_Level: e to
DIN EN ISO 13849-1
SIL 3 to DIN EN 61508
Category 4 to EN954-1
We reserve the right to make alterations without prior notice
ifm electronic.gmbh Date: 22.03.07
page
2
of
15
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Connection
examples *6
Performance_Level: e to
DIN EN ISO 13849-1
SIL 3 to DIN EN 61508
Category 4 to EN954-1
*Optional
**Note: ensure the potential is identical when using the signal current path!
We reserve the right to make alterations without prior notice
ifm electronic gmbh Date: 22.03.07
page
3
of
15
 (VWRSDSSOLFDWLRQ
1.1 Two channels with monitored start and relay control with feedback
loop monitoring
Description:
The e-stop button (trigger element) must be connected to the input circuits (S33/S34 and S44/S43)
and the start button to Y1/Y2. If a feedback contact is to be monitored, it must be connected between
Y1/Y6, otherwise a link must be connected. The outputs are activated after pressing and releasing the
start button with closed input circuits (e-stop button not pressed). By pressing the e-stop button the
outputs are de-energised, the contacts 13-14 and 23-24 are opened. The signal output Y7 is
deactivated. The e-stop contacts are not monitored with respect to the time period.
General information:
For this operating mode the terminals Y4/Y5 must be linked! For the e-stop application the
simultaneity is indefinite. At power on no different signals are allowed at the two input circuits. The e-
stop contacts must be both closed or both open. In case of a faulty wiring of the inputs the unit goes
to the FAIL-SAFE state (safety deactivation).
S33 S34 S43 S44
Y4 Y5 Y6 Y7
L- Y1 Y2 L+
13 14
23 24
G1501S
+24 V
0 V
K1
K2
feedback contacts*
start
PLC
signal current path**
M 3~
L1 L2 L3

Connection
examples *6
Performance_Level: e to
DIN EN ISO 13849-1
SIL 3 to DIN EN 61508
Category 4 to EN954-1
*Optional
**Note: ensure the potential is identical when using the signal current path!
We reserve the right to make alterations without prior notice
ifm electronic gmbh Date: 22.03.07
page
4
of
15
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2.1 With monitored start
The safety switches (trigger elements) must be connected to the input circuits (S33/S34 and S44/S43)
and the start button to Y1/Y2. If a feedback contact is to be monitored, it must be connected between
Y1/Y6, otherwise a link must be connected. The outputs are activated after closing and reopening of
the reset circuit (start button) with closed input circuits (safety switch button pressed). By pressing one
or both buttons of the safety switch (opening contacts) the outputs are de-energised, the contacts 13-
14 and 23-24 are opened, the signal output Y7 is deactivated. A new cycle can only be started after
resetting the contacts of the safety switch. The contacts of the safety switch are not monitored with
respect to the time period.
General information:
For this operating mode the terminals Y4/Y5 must be linked! The simultaneity is indefinite for the
protective guard application. At power on no different signals are allowed at the two input circuits
(S33/S34 and S44/S43). The contacts of the safety switch must be both closed or both open. In case
of a faulty wiring of the inputs the unit goes to the FAIL-SAFE state (safety deactivation).
S33S34S43S44
Y4 Y5 Y6 Y7
L- Y1 Y2 L+
13 14
23 24
G1501S
+24 V
0 V
K1
K2
feedback contacts*
start
PLC
signal current path**
M 3~
L1 L2 L3

Connection
examples *6
Performance_Level: e to
DIN EN ISO 13849-1
SIL 3 to DIN EN 61508
Category 4 to EN954-1
*Optional
**Note: ensure the potential is identical when using the signal current path!
We reserve the right to make alterations without prior notice
ifm electronic gmbh Date: 22.03.07
page
5
of
15
2.2 With automatic start
The trigger elements (safety switch contacts) must be connected to the input circuits (S33/S34 and
S44/S43). The link Y1/Y2 configures the unit for the automatic start. If a feedback contact is to be
monitored, it must be connected between Y1/Y2 instead of the link. The outputs are activated after
closing the contacts of the safety switch. By opening one or both contacts of the safety switch the
outputs are de-energised, the contacts 13-14 and 23-24 are opened, the signal output Y7 is
deactivated. A new cycle can only be started after opening both contacts of the safety switch. The
contacts of the safety switch are not monitored with respect to the time period.
General information:
For this operating mode the terminals Y4/Y5 must be linked! The simultaneity is indefinite for the
protective guard application. At power on no different signals are allowed at the two input circuits
(S33/S34 and S44/S43). The contacts of the safety switch must be both closed or both open. In case
of a faulty wiring of the inputs the unit goes to the FAIL-SAFE state (safety deactivation).
S33 S34 S43 S44
Y4 Y5 Y6 Y7
L- Y1 Y2 L+
13 14
23 24
G1501S
+24 V
0 V
K1
K2
feedback contacts*
PLC
signal current path**
M 3~
L1 L2 L3

Connection
examples *6
Performance_Level: e to
DIN EN ISO 13849-1
SIL 3 to DIN EN 61508
Category 4 to EN954-1
*Optional
**Note: ensure the potential is identical when using the signal current path!
We reserve the right to make alterations without prior notice
ifm electronic gmbh Date: 22.03.07
page
6
of
15
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3.1 With automatic start and supply of the non-contact safety device
(current consumption < 50 mA) via the G1501S
The trigger elements OSSD1 and OSSD2 must be connected to the safety input circuits (S43, S34).
The link Y1-Y2 configures the unit for the automatic start. If a feedback contact is to be monitored, it
must be connected between Y1/Y2 instead of the link. The outputs are activated after switching of the
safety device outputs (OSSDs 1 and 2 have high signal). If both or only one OSSD of the safety
device switch off, the outputs of the G1501S are de-energised. The contacts 13-14 and 23-24 are
opened, the signal output Y7 is deactivated. The safety device is supplied via the unit G1501S (L- of
the device to Y4 and L+ of the device to S44).
General information:
For this operating mode the terminals Y4/Y5 must NOT be linked! The simultaneity is determined by
the signal application to the input terminals S34 and S43. The high signal at the input S43 must be
activated no later than max. 0.5 s after the high signal at the input S34. A high signal at the input S34
can be applied at any time after the high signal at the input S43. When exceeding the simultaneity a
new cycle can only be restarted after deactivation of both OSSDs. At power on no high signals are
allowed at both input circuits, i.e. both OSSDs must be deactivated. The G1501S remains in a waiting
state as long as the inputs are not wired correctly.
S33S34S43S44
Y4 Y5 Y6 Y7
L- Y1 Y2 L+
13 14
23 24
G1501S
+24 V
0 V
K1
K2
feedback contacts*
PLC
signal current
path**
M 3~
L1 L2 L3
L+ OSSD
1 OSSD 2 L-
GM701S

Connection
examples *6
Performance_Level: e to
DIN EN ISO 13849-1
SIL 3 to DIN EN 61508
Category 4 to EN954-1
*Optional
**Note: ensure the potential is identical when using the signal current path!
We reserve the right to make alterations without prior notice
ifm electronic gmbh Date: 22.03.07
page
7
of
15
3.2 With monitored start and supply of the non-contact safety device
(current consumption < 50 mA) via the G1501S
The trigger elements OSSD1 and OSSD2 must be connected to the safety inputs (S43, S34) and the
start button to Y1/Y2. If feedback contacts are to be monitored, they must be connected to Y1/Y6,
otherwise a link must be connected. The outputs are activated after pressing and releasing the start
button with switched outputs of the safety device (OSSDs 1 and 2 have high signal). If both or only
one OSSD of the safety device switch off, the outputs of the G1501S are de-energised. The contacts
13-14 and 23-24 are opened, the signal output Y7 is deactivated. The safety device is supplied via the
unit G1501S (L- of the device to Y4 and L+ of the device to S44).
General information:
For this operating mode the terminals Y4/Y5 must NOT be linked! The simultaneity is determined by
the signal application to the input terminals S34 and S43. The high signal at the input S43 must be
activated no later than max. 0.5 s after the high signal at the input S34. A high signal at the input S34
can be applied at any time after the high signal at the input S43. When exceeding the simultaneity a
new cycle can only be restarted after deactivation of both OSSDs. At power on no high signals are
allowed at both input circuits, i.e. both OSSDs must be deactivated. The G1501S remains in a waiting
state as long as the inputs are not correctly wired.
S33S34S43S44
Y4 Y5 Y6 Y7
L- Y1 Y2 L+
13 14
23 24
G1501S
+24 V
0 V
K1
K2
feedback contacts*
start
PLC
signal current path**
M 3~
L1 L2 L3
L+ OSSD
1 OSSD 2 L-
GM701S

Connection
examples *6
Performance_Level: e to
DIN EN ISO 13849-1
SIL 3 to DIN EN 61508
Category 4 to EN954-1
*Optional
**Note: ensure the potential is identical when using the signal current path!
We reserve the right to make alterations without prior notice
ifm electronic gmbh Date: 22.03.07
page
8
of
15
3.3 With automatic start and external supply of the non-contact safety
device (current consumption > 50 mA)
The safety device is externally supplied. L- of the device is additionally connected to Y4.
See point 3.1 for the other function.
S33 S34 S43 S44
Y4 Y5 Y6 Y7
L- Y1 Y2 L+
13 14
23 24
G1501S
+24 V
0 V
K1
K2
feedback contacts*
PLC
signal current path**
M 3~
L1 L2 L3
L+ OSSD
1 OSSD 2 L-
GM701S

Connection
examples *6
Performance_Level: e to
DIN EN ISO 13849-1
SIL 3 to DIN EN 61508
Category 4 to EN954-1
*Optional
**Note: ensure the potential is identical when using the signal current path!
We reserve the right to make alterations without prior notice
ifm electronic gmbh Date: 22.03.07
page
9
of
15
3.4 With monitored start and external supply of the non-contact safety
device (current consumption > 50 mA)
The safety device is supplied externally. L- of the device is additionally connected to Y4.
See point 3.2 for the other function.
S33 S34 S43 S44
Y4 Y5 Y6 Y7
L- Y1 Y2 L+
13 14
23 24
G1501S
+24 V
0 V
K1
K2
feedback contacts*
start
L+ OSSD
1OSSD 2L-
GM701S
PLC
signal current path**
M 3~
L1 L2 L3

Connection
examples *6
Performance_Level: e to
DIN EN ISO 13849-1
SIL 3 to DIN EN 61508
Category 4 to EN954-1
*Optional
**Note: ensure the potential is identical when using the signal current path!
We reserve the right to make alterations without prior notice
ifm electronic gmbh Date: 22.03.07
page
10
of
15
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4.1 With automatic start and supply of the fail-safe sensor via the
G1501S
The G1501S provides a clock signal to the fail-safe sensor. To do so, the clock input of the fail-safe
sensor must be connected to S33.
If the fail-safe sensor is enabled, the clock signal is applied to the output of the fail-safe sensor after a
delay and is read by the G1501S via the terminal S43. The link Y1-Y2 configures the unit for the
automatic start. If a feedback contact is to be monitored, it must be connected between Y1/Y2 instead
of the link. If the correct clock signal is read by the G1501S, the outputs of the G1501S are activated.
If a different signal is read, the outputs of the G1501S are immediately de-energised. The contacts 13-
14 and 23-24 are opened, the feedback output Y7 is deactivated. The fail-safe sensor is supplied via
the unit G1501S (L- of the fail-safe sensor to Y4 and L+ to S44).
General information:
For this operating mode the terminals Y4/Y5 must NOT be linked! At power on no signal is allowed at
the output of the clocked fail-safe sensor. The G1501S remains in a waiting state as long as the inputs
are not correctly wired, i.e. a static high signal is applied to the output of the clocked fail-safe sensor.
S33S34S43S44
Y4 Y5 Y6 Y7
L- Y1 Y2 L+
13 14
23 24
G1501S
+24 V
0 V
K1
K2
feedback contacts*
PLC
signal current path**
M 3~
L1 L2 L3
L+ A TE L-
GM504S

Connection
examples *6
Performance_Level: e to
DIN EN ISO 13849-1
SIL 3 to DIN EN 61508
Category 4 to EN954-1
*Optional
**Note: ensure the potential is identical when using the signal current path!
We reserve the right to make alterations without prior notice
ifm electronic gmbh Date: 22.03.07
page
11
of
15
4.2 With monitored start and supply of the fail-safe sensor via the
G1501S
The G1501S provides a clock signal to the fail-safe sensor. To do so, the clock input of the fail-safe
sensor must be connected to S33.
If the fail-safe sensor is enabled, the clock signal is applied to the output of the fail-safe sensor after a
delay and is read by the G1501S via the terminal S43. If the clock signal is read by the G1501S, the
G1501S outputs are activated at the terminals Y1 and Y2 after pressing and releasing the start button.
If feedback contacts are to be monitored, they must be connected to Y1/Y6, otherwise a link must be
connected. If a different signal is read, the outputs of the G1501S are immediately de-energised. The
contacts 13-14 and 23-24 are opened, the signal output Y7 is deactivated. The fail-safe sensor is
supplied via the unit G1501S (L- of the device to Y4 and L+ of the device to S44).
General information:
For this operating mode the terminals Y4/Y5 must NOT be linked! At power on no signal is allowed at
the output of the clocked fail-safe sensor. The G1501S remains in a waiting state as long as the inputs
are not correctly wired, i.e. a static high signal is applied to the output of the clocked fail-safe sensor.
S33S34S43S44
Y4 Y5 Y6 Y7
L- Y1 Y2 L+
13 14
23 24
G1501S
+24 V
0 V
K1
K2
feedback contacts*
start
PLC
signal current path**
M 3~
L1 L2 L3
L+ A TE L-
GM504S

Connection
examples *6
Performance_Level: e to
DIN EN ISO 13849-1
SIL 3 to DIN EN 61508
Category 4 to EN954-1
*Optional
**Note: ensure the potential is identical when using the signal current path!
We reserve the right to make alterations without prior notice
ifm electronic gmbh Date: 22.03.07
page
12
of
15
4.3 With automatic start and external supply of the non-contact safety
device
The clocked fail-safe sensor is supplied externally. L- of the fail-safe sensor is additionally connected to Y4.
See point 4.1 for the other function.
S33 S34 S43 S44
Y4 Y5 Y6 Y7
L- Y1 Y2 L+
13 14
23 24
G1501S
+24 V
0 V
K1
K2
feedback contacts*
PLC
signal current path**
M 3~
L1 L2 L3
L+ A TE L-
GM504S

Connection
examples *6
Performance_Level: e to
DIN EN ISO 13849-1
SIL 3 to DIN EN 61508
Category 4 to EN954-1
*Optional
**Note: ensure the potential is identical when using the signal current path!
We reserve the right to make alterations without prior notice
ifm electronic gmbh Date: 22.03.07
page
13
of
15
4.4 With monitored start and external supply of the non-contact safety
device
The clocked fail-safe sensor is supplied externally. L- of the fail-safe sensor is additionally connected to Y4.
See point 4.2 for the other function.
S33S34S43S44
Y4 Y5 Y6 Y7
L- Y1 Y2 L+
13 14
23 24
G1501S
+24 V
0 V
K1
K2
feedback contacts*
start
PLC
signal current path**
M 3~
L1 L2 L3
L+ A TE L-
GM504S

Connection
examples *6
Performance_Level: e to
DIN EN ISO 13849-1
SIL 3 to DIN EN 61508
Category 4 to EN954-1
*Optional
**Note: ensure the potential is identical when using the signal current path!
We reserve the right to make alterations without prior notice
ifm electronic gmbh Date: 22.03.07
page
14
of
15
 7ZRKDQGFRQWUROXVLQJPHFKDQLFDOVZLWFKHV
The trigger elements (two-hand buttons) must be connected to the input circuits (S33/S43 and
S34/S44 ). If feedback contacts are to be monitored, they must be connected to Y1/Y2, otherwise
a link must be connected.
If a button (S1 or S2) is pressed and held pressed and within 0.5 s the other button is also pressed
and held pressed, the outputs 13-14, 23-24 are closed and the signal output Y7 is activated.
If one or both buttons are released, the outputs 13-14 and 23-24 open immediately. Y7 is deactivated.
A new cycle can only be started after enabling (releasing) both S1 and S2 buttons. The outputs are
not enabled if the time between actuating both switches is longer than 0.5 s. The outputs 13-14 and
23-24 remain open, Y7 deactivated. The machine cannot be started.
General information:
For this operating mode the terminals Y4/Y5 must be linked! The simultaneity between the two buttons
S1 and S2 is limited to max. 0.5 s. When exceeding the simultaneity a new cycle can only be restarted
after pressing both buttons. At power on no high signal is allowed at both input circuits, i.e. the two-
hand buttons must not be pressed. In case of a faulty wiring of the inputs the G1501S goes to the
FAIL-SAFE state (safety deactivation).
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S33 S34 S43 S44
Y4 Y5 Y6 Y7
L- Y1 Y2 L+
13 14
23 24
G1501S
+24 V
0 V
K1
K2
feedback contacts*
PLC
signal current path**
M 3~
L1 L2 L3
S2S1

Connection
examples *6
Performance_Level: e to
DIN EN ISO 13849-1
SIL 3 to DIN EN 61508
Category 4 to EN954-1
*Optional
**Note: ensure the potential is identical when using the signal current path!
We reserve the right to make alterations without prior notice
ifm electronic gmbh Date: 22.03.07
page
15
of
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The suitability of an ifm sensor can be checked at http://www.ifm-electronic.com. If an ifm sensor
is not listed, please contact ifm electronic. The suitability of sensors from other manufacturers
cannot be guaranteed.
The trigger elements (two-hand buttons) must be connected to the input circuits (S33/S43 and
S34/S44 ). If feedback contacts are to be monitored, they must be connected to Y1/Y2, otherwise
a link must be connected.
If a button (S1 or S2) is pressed and held pressed and within 0.5 s the other button is also pressed
and held pressed, the outputs 13-14, 23-24 are closed and the signal output Y7 is activated.
If one or both buttons are released, the outputs 13-14 and 23-24 open immediately. Y7 is deactivated.
A new cycle can only be started after enabling (releasing) both buttons S1 and S2. The outputs are
not enabled if the time between pressing both buttons is longer than 0.5 s. The outputs 13-14 and 23-
24 remain open, Y7 deactivated. The machine cannot be started.
General information:
For this operating mode the terminals Y4/Y5 must be linked! The simultaneity between the two buttons
S1 and S2 is limited to max. 0.5 s. When exceeding the simultaneity a new cycle can only be restarted
after pressing both buttons. At power on no high signal is allowed at both input circuits, i.e. the two-
hand buttons must not be pressed. In case of a faulty wiring of the inputs the G1501S goes to the
FAIL-SAFE state (safety deactivation).
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S33 S34 S43 S44
Y4 Y5 Y6 Y7
L- Y1 Y2 L+
13 14
23 24
G1501S
+24 V
0 V
K1
K2
feedback contacts*
PLC
signal current path**
M 3~
L1 L2 L3
S1 S2