ABB ACS 6000 - Excitation Circuit; Direct Excitation; Brushless Excitation

Chapter 6 - Insulation Resistance Measurement
ABB
36 (of 62) 3BHS135824 ZAB E01Rev. D ACS 6000 Commissioning Manual
6.2.7 Excitation Circuit
When commissioning an ACS 6000 for synchronous motors, the
insulation resistance of the excitation circuit must measured as well.
Take the following preparatory measures for an Excitation Unit (EXU):
Direct Excitation
1 Make a short circuit between the two output terminals.
2 Make a short circuit between the input phases and connect it to the
output terminals.
3 Short circuit switch –K6201.
4 Short circuit circuit and ground terminal block –X614 / 1-4.
5 Short circuit and ground terminal block –X617 / 1,2.
6 Short circuit and ground terminals 3 and 7 of board –A6032.
7 Short circuit and ground terminals x13 and x14 of board –A6033.
8 Disconnect inputs P and N of power supply –G6041.
9 Short circuit and ground the 24V output on terminal blocks –X66
and –X68.
10 Disconnect and isolate terminals 5, 9, 20, 22 of MR 627 –A6041.
11 Disconnect and isolate terminals 25 and 33 of MZ 611 –A6142, if
present in the configuration.
12 Short and ground terminals X2_7, X2_8, X2_11 and X2_12 of board
–A6051.
Brushless Excitation
1 Make a short circuit between the three output terminals.
2 Make a short circuit between the input phases and connect it to the
output terminals.
3 Short circuit circuit switch –K6201.
4 Short circuit and ground terminal block –X614 / 1-4.
5 Short circuit and ground terminal block –X617 / 1,2.
6 Short circuit and ground terminals 3 and 7 of boards –A6032 and –
A6034.
7 Short circuit and ground terminals X13 and X14 of boards –A6033
and –A6035.
8 Disconnect inputs P and N of power supply –G6041.
9 Short circuit and ground the 24 V output on terminal blocks –X66
and –X68.