Application Examples; Application Notes - Honeywell FF-SRE6029 Instructions For Use Manual

APPLICATION EXAMPLES

FIGURE 9. CONNECTION OF AN FF-SRS59352 EMERGENCY STOP MODULE
Fuse
24 Vdc
(A)
0 Vdc
FUNCTIONAL DESCRIPTION:
After activation of the safety device (see application note (A)), the normally open safety contacts of the FF-SRS59352
dual channel emergency stop module (13/14 to 33/34) and the connected FF-SRE6029 extension module (13/14, 23/24,
33/34, 43/44) will open. The normally closed contacts (41/42, 51/52) will all close. The LED relay output indicators (K2,
K3 and K1, K2) of both modules go off indicating that the internal safety relays are de-energized.
After removing the emergency stop condition, press and release the restart push-button to restart the FF-SRS59352
emergency stop module. If the FF-SRE6029 extension module is operating properly, the normally closed contact
(Y1/Y2) for the External Device Monitoring is closed and both safety modules are energising their internal safety relays.
The normally open contacts will close and the normally closed contacts will open. The LED relay output indicators all
illuminate. This action will allow the machine to operate.

APPLICATION NOTES

Note (A): Dual channel output safety devices with relay outputs or safety switches (examples)
This may be a safety device with dual output safety switching devices (OSSD)
•
emergency stop push-button
•
safety limit or interlock switches (e.g. CPS, GK, GSS)
IMPROPER INPUT CONNECTIONS
•
To ensure the highest level of safety, always connect the two redundant safety device outputs individually to the
safety relay inputs A1(+)/A2(-) and A3(+)/A4(-) of the FF-SRE6029 Extension Module.
•
When safety devices with relay outputs are used, always connect them using different potentials to A1(+)/A2(-) and
A3(+)/A4(-), in order to be able to detect cross-faults.
IMPROPER EXTENSION MODULE MONITORING
•
The External Device Monitoring (EDM) function checks the correct operation of the internal relays before each
FF-SRE6029 activation and is able to detect failures of the internal relays (e.g. welded safety relay contacts).
•
ALWAYS connect the normally closed contact (Y1/Y2) of the extension module to the External Device Monitoring
(EDM) loop of the connected safety device. NEVER use the normally closed contact (51/52) for the EDM monitoring.
Failure to comply with these instructions could result in death or serious injury.
6
Emergency stop
push-button (A)
23 33
A1(+) S11 S12 S22
13
Honeywell
FF-SRS59352
Power
S1
K2
K3
S2
Internal
switches
S21
A2(-) 14 24 34
S33 S34
PE
1 NO and 1 NC
safety contacts
Restart push-
button
41 A1(+) A3(+)
Honeywell
FF-SRE60292
K1
K2
42
A2(-) A4(-) 14
13 23 33 43 51 Y1
24 34 44 52
Y2
4 NO
and 1 NC
safety
contacts
Machine control
107137-20 -EN FR26 GLO 305 Printed in Germany