ST950S Plus+ Installation and Commissioning Manual
LEDs on the redundancy module indicate the state of each of the incoming supplies. The supply
status information is also provided, via analogue signals to the connected CIC/CTB for the purpose of
monitoring and fault detection.
3.8.2. Redundancy Module Connections
Figure 15. Redundancy Module Wiring
The incoming 48V DC PSUs connect to the Input terminal block. The outgoing connections to the CIC/
CTB, made via spade terminals, connect to the +48V OUT and 0V OUT terminals. At the CTB the
orange wires are connected to the PWR BNK1 IN, PWR BNK2 IN and PWR BNK3 IN terminals. The
Black wires are connected to the GND terminals.
The Monitor connection connects to PL3 of the CTB and provides status to the CIC indicating whether
the connected PSUs are Present, Imbalanced or Overloaded.
3.8.3. Configuration
The Redundancy module provides no user configurable options or controls.
3.8.4. Fault Indication
LEDs on the module indicate the health of the connected PSUs.
Table 10. I/O Card LED
Led Indicator
Function
Meaning
Green x 3
Presence
On
Energised PSU is con
nected.
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