ABB ACS880-07, Hardware Manual

Page: 144 / 274

Action
Check that the main switch-disconnector (Q1.1) is switched off, or main breaker (Q1) racked out.
Note:
Some 12-pulse units are equipped with two switch-disconnectors or breakers – check that both are
open before you proceed.
Check that the grounding switch (Q9.1) (F259) is switched on.
12-pulse units have two switches, Q9.1 and Q9.2.
Check the mechanical and electrical installation of the drive. See Installation checklist (page 141) .
Check the settings of breakers/switches in the auxiliary circuits. See the circuit diagrams delivered with
the drive.
Check the tap settings of transformers T21, T101 (if present) and T111 (if present). See section
Checking the settings of transformers T21, T101 and T111 (page 96) .
Disconnect any unfinished or uninspected auxiliary voltage (115/230 V AC) cables that lead from the
terminal blocks to the outside of the equipment.
Check that both channels of the Safe torque off circuit connected to the STO inputs of both the supply
control unit [A51] and the inverter control unit [A41] are closed. Refer to the wiring diagrams delivered
with the drive.
If the Safe torque off functionality is used, check that the STO OUT output on the inverter control unit
(A41) is chained to the STO inputs of all inverter modules.
If the Safe torque off functionality is not used, check that the STO input on all inverter modules is correctly
wired to +24 V and ground.
Drives with ground fault monitoring for IT (ungrounded) systems (Q954): Adjust the settings of
the ground fault monitor to suit the installation. See the circuit diagrams of the delivery and
IRDH275B
Ground Fault Monitor Operating Manual by Bender (code: TGH1386en).
Drives with Pt100 relays ((n)L506):
• Check the connections against the circuit diagrams of the delivery.
• Set the alarm and trip levels of the Pt100 relays.
Set the alarm and trip levels of the Pt100 relay as low as possible based on the operating temperature
and test results of the machine. The trip level can be set, for example, 10 °C higher than what the
temperature of the machine is at maximal load in the maximum environmental temperature.
We recommend to set the operating temperatures of the relay, typically for example, as follows:
• 120…140 °C when only tripping is in use
• alarm 120…140 °C and trip 130…150 °C when both alarm and tripping are used.
Powering up the auxiliary circuit of the drive
Make sure that it is safe to connect voltage. Ensure that
• nobody is working on the drive or circuits that have been wired from outside into the drive cabinet
• the cover of the motor terminal box is in place.
Drives with a voltmeter (G334): Make sure that the circuit breaker of the measuring circuit
(F5.1) is closed.
Close the circuit breakers and/or fuse disconnectors supplying the auxiliary voltage circuits.
Close the cabinet doors.
Close the main breaker of the supply transformer.
Switch on the auxiliary voltage (Q21).
Setting up the supply unit parameters
Check the voltage range setting in parameter 195.01 Supply voltage .
For more information on setting up the supply control program, see the ACS880 diode supply control
program firmware manual (3AUA0000103295 [English]).
If you need more information on the use of the control panel, see the ACX-AP-x Assistant control
panels user's manual (3AUA0000085685 [English]).
144 Start-up