How do I connect the RPO(Remote Power Off) function If using multiple CL-NA units?

Issue:
How do I connect the RPO (Remote Power Off) function if using multiple CL‑NA units?

Product Line:
Context CL‑NA (multiple CL-unit installations)
This product was discontinued, and equivalent equipment may be selected based on site requirements.

Environment:
Installations using multiple CL units with RPO (Remote Power Off) functionality

Cause:
By default, the unit comes with a shorting link connection if the RPO function is not being used.

Resolution:
If planning to use multiple CL units with RPO functionality, you need to:
-Remove the shorting link from the RPO terminals.
-Daisy-chain the RPO terminals across the CL units as shown in Figure 1.
-Ensure the last device in the daisy chain is connected to an external switch with Normally Closed (NC) contacts (see Figure 1).

Figure 1. RPO (Remote Power Off) connection for single inverter and multiple inverter (daisy-chain) installations.

Note: The last device in the daisy chain will be connected to an external switch which has normally closed contacts.

Publicerad för: Schneider Electric Sverige