1. Field current range switch (SW1) has been provided on power board for improved resolution at low field current
2. The maximum externally supplied field current is 15A for Frame1 but requires de-rating of the armature output
current (amp for amp) above 10A, and only apply for operation at or below 35
C ambient.
3. The maximum externally supplied field current is 20A for Frame2.
Power Supply Details
3-
Phase
Supply
LV Build
MV Build
220-500V ac ± 10%, 50/60Hz
5%, line-to-line, ground referenced (TN) and non-ground
referenced (IT)
Supply Current
Supply current due to armature = (0.9 x Idc) A ac rms. Total ac rms current including motor field
current is listed below.
Frame 1
20A unit: 23.5A; 35A unit: 36.5A; 45A unit: 45.0A
Frame 2
75A unit: 76.5A; 110A unit: 107.5A; 165A unit: 156.5A
Field Supply
Voltage
Build-related, Internally derived from L1 and L2 phases. When externally supplied - Max. 1-phase
500V line-to-line, phase aligned to the armature L1-L2 supply.
3 Phase Input
3-phase rotation insensitive, no adjustment necessary for frequency change
