Checks With Voltage Connected To Auxiliary Circuits - ABB ACS 600 User Manual

Chapter 4 – Commissioning the Supply Section with ISU
Checks with Voltage
Connected to
Auxiliary Circuits
WARNING! This section includes instructions for checking/measuring circuits under
voltage. Only a qualified person is allowed to do the work. An appropriate and
approved meter must be used.
IF IN DOUBT, DO NOT PROCEED!
Ensure the actions described in section
to Auxiliary Circuits
Measure phase voltages by using the switch and meter on
the cabinet door.
Check the secondary side voltage of the auxiliary voltage
transformer. Close the protection switch on the secondary
side.
Close the breakers of the auxiliary circuits one by one.
Check each circuit by
• measuring correct voltage in terminal blocks
• checking the operation of the devices connected to the
circuit.
Check for the correct connection from an external auxiliary
voltage source (e.g. from an Uninterrupted Power Supply,
UPS) to the auxiliary control unit.
4-4
This table is a commissioning checklist for the supply section with
voltage connected to the input terminals, and Auxiliary Control Unit
(ACU).
Action
Connecting Voltage
are completed.
Information
This is an optional feature. If included,
see the circuit diagrams delivered with
the device.
See the circuit diagrams delivered with
the device.
Note: The cooling fans of the IGBT
supply unit will start after the main
contactor is closed.
This is an optional feature. If included,
see the circuit diagrams delivered with
the device.
ACA 635 IBGT Supply Sections