User Manual

9-10
GV3000/SE AC Drive Hardware Reference, Version 6.06
Table 9.1 - Resistance Checks (Continued)
200–400 HP Drives
Input
Diode
No.
Meter
Connection
(+) (-)
Component is OK if
resistance (R) is: Component is defective if:
1 * R/L1 R > 100 kohm Continuity (short circuit)
2 * S/L2
3 * T/L3
4 R/L1 **
5 S/L2 **
6 T/L3 **
* (+) DC Bus power terminal
** (-) DC Bus power terminal
1–60 HP Drives
IGBT
No.
Meter
Connection
(+) (-)
Component is OK if
resistance (R) is: Component is defective if:
1 * W/T3 50K < R < 10 Megohm Continuity (short circuit) or
open when the meter is
connected with reversed
polarity
2 * V/T2
3 * U/T1
4 W/T3 **
5 V/T2 **
6 U/T1 **
* (+) DC Bus Volts power terminal
** (-) DC Bus Volts power terminal
60–150 HP Drives
IGBT
No.
Meter
Connection
(+) (-)
Component is OK if
resistance (R) is: Component is defective if:
1 47 W 0.3 kohm < R < 8 kohm Continuity (short circuit) or
open when the meter is
connected with reversed
polarity
2 47 V
3 47 U
4 W 45
5 V 45
6 U 45