ABB ACS880-07 - Checking the Settings of Transformers T21, T101 and T111; T21 and T101 Tap Settings (400

Checking the settings of transformers T21, T101 and T111
Check the tap settings of all auxiliary voltage transformers. Transformer T21 is standard
equipment; T101 and T111 are present depending on drive configuration.
The voltage settings of transformers T21 and T101 are made at terminal blocks
T21_X1/X2 and T101_X1/X2 respectively. The settings of transformer T111 are made
on the transformer itself. The locations of the transformers and the terminal blocks
are shown in section Operation principle and hardware description (page 31).
￭
T21 and T101 tap settings (400…500 V units)


500 V 1
480 V 2
460 V 3
440 V 4
415 V 5
400 V 6
380 V 7
U1 8
TP1 9
TP2 10
T21_X1
T101_X1
T21_X2
T101_X2
1230 V
2
3
4N
5
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Electrical installation 117
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