Chapter 4 Commissioning; Commissioning Checklist; Mechanical Installation; Cable Connections - Chint Power CPS SCA20KTL-DO Installation And Operation Manual

4.1 Commissioning Checklist

WARNING:
Please follow the guidelines below before on-grid operation to
eliminate possible dangers to ensure safety.

4.1.1 Mechanical installation

Make sure that the mounting bracket is secure and all the screws have been
tightened to the specified torque values.

4.1.2 Cable connections

 Make sure that all cables are connected to the right terminals
 The appropriate cable management is important to avoid physical damage.
 The polarity of DC input cables should be correct and the DC Switch
should be on "OFF" position.
(Please refer to 3.3 Electrical installation)

4.1.3 Electrical check

 Make sure that the AC circuit breaker is appropriately sized
 Test whether the AC voltage is within the normal operating range
 Make sure the DC open circuit voltage of input strings is less than 1000V.

4.2 Commissioning steps

Complete the checklist above before commissioning the inverter as follows:
1.) Turn on the AC circuit breaker.
2.) Turn on the DC circuit breaker.
(Skip these two steps if there are no circuit breakers.)

Chapter 4 Commissioning

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