Install Controller; Figure 12 Fan Shelf Controller Cover; Figure 13 Controller Installation - ABB CPS2400U Product Manual

Step Action
Test each circuit by powering an open circuit at the remote end of the wire with a QS982 output. If red lights do
not flash, there is no leakage path to ground at operating voltage. If the FLT light does not blink yellow, there is no
hard short between tip and ring.
Note:
8
1. This step is shown here only for completeness. It is to be performed after the Apply DC Power section is
completed.
2. Circuit powering is usually accomplished by closing the circuit using a 5-pin protector after DC power
applied to the system.

Install Controller

Step Action
1.
2.
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