MSI-s
15
3.3.1.2 Operating Mode: With Start/Restart Interlock
– With Static External Device Monitoring
External wiring requirements:
In this operating mode, if the pro-
tected fields are free, a check is
merely made of whether the down-
stream circuit elements have retur-
ned to their original state. If so, a
release is issued by pressing and
letting go of the reset button.
The dynamic monitoring of the downstream relays, which
may be required in order to maintain the safety category,
must be performed by other means.
3.3.1.3 Operating Mode: With Start/Restart Interlock
– Without External Device Monitoring
External wiring requirements:
The dynamic monitoring of the
downstream relays, which may be
required in order to maintain the
safety category, must be performed
by other means.
Terminal 13
”Reset”
connected to
24 V DC by way of a
start button
Terminal 14
”EDM”
connected to 0 V by
way of feedback con-
tacts of the positive-
guided downstream
relay
Required DIP switch settings in the
MSI module (Chapter 3.2):
DS3 down
DS2 up
Start
+24 V
0 V
k2
k1
13 14
Reset
EDM
Terminal 13
”Reset”
connected to
24 V DC by way of
a start button
Terminal 14
”EDM”
connected to 0 V
Required DIP switch settings in
the MSI module (Chapter 3.2):
DS3 down
DS2 up
Start
+24 V
0 V
13 14
Reset
EDM