Rockwell Automation GV3000/SE AC Drive Ver. 6.06 Hdwe Ref., Installation, and Troubleshooting Manual User Manual
Page 93

Troubleshooting the Drive
9-9
Table 9.1 – Resistance Checks
1–60 HP Drives
Input
Diode
No.
Meter
Connection
(+) (-)
Component is OK if
resistance (R) is:
Component is defective if:
1
* R/L1
50K < R < 10 Megohms Continuity (short circuit) or
open when the meter is
connected with reversed
polarity
2
* S/L2
3
* T/L3
4
R/L1 **
5
S/L2 **
6
T/L3 **
* (+) DC Bus Volts power terminal
** (-) DC Bus Volts power terminal
60–100 HP Drives
Input
Diode
No.
Meter
Connection
(+) (-)
Component is OK if
resistance (R) is:
Component is defective if:
1
47 1L1
0.3 kohm < R < 8 kohm
Continuity (short circuit) or
open when the meter is
connected with reversed
polarity
2
47 1L2
3
47 1L3
4
1L1 45
5
1L2 45
6
1L3 45
100–150 HP Drives
Input
Diode
No.
Meter
Connection
(+) (-)
Component is OK if
resistance (R) is:
Component is defective if:
1
47 1L1
R > 100 kohm
Continuity (short circuit)
2
47 1L2
3
47 1L3
4
1L1 45
5
1L2 45
6
1L3 45