Connecting The Failsafe Alarm Relay; Grounding The Device - RuggedCom SIMATIC NET RS416PF Equipment Manual

Installing Device
2.4 Connecting the Failsafe Alarm Relay
2.4

Connecting the Failsafe Alarm Relay

The failsafe relay can be configured to latch based on alarm conditions. The NO
(Normally Open) contact is closed when the unit is powered and there are no active
alarms. If the device is not powered or if an active alarm is configured, the relay
opens the NO contact and closes the NC (Normally Closed) contact.
Note
Control of the failsafe relay output is configurable through RUGGEDCOM RS416PF.
One common application for this relay is to signal an alarm if a power failure occurs.
For more information, refer to the "RUGGEDCOM RS416PF User Guide" for the
RUGGEDCOM RS416PF.
The following shows the proper relay connections.
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1
2
3
4
5
Figure 2.4
2.5

Grounding the Device

The RUGGEDCOM RS416PF chassis ground terminal uses a #6-32 screw. It is
recommended to terminate the ground connection with a #6 ring tonue and torque
the screw to 1.7 N·m (15 lbf·in).
14
Screw-Type Terminal Block
Pluggable Terminal Block
Normally Open Terminal
Common Terminal
Normally Closed Terminal
Failsafe Alarm Relay Wiring
3 5
4
3 5
4
RUGGEDCOM RS416PF
Equipment Manual, 10/2023, C79000-G8976-1355-07
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