Rockwell Automation SP500 AC Drive Installation and Operation Manual - Manual (Page 98)

9-8 SP500 AC Drive Installation and Operation Manual Version 3.1
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* (+) DC bus volts power terminal
** (–) DC bus volts power terminal
* (+) DC bus volts power terminal
** (–) DC bus volts power terminal
Table 9.2 – Resistance Checks for Input Diodes
Input
Diode
No.
Meter
Connection
Component is OK if
resistance (R) is:
Component is
defective if: (+) (-)
1 * R/L1 50 < R < 10 Megohm 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 **
Table 9.3 – Resistance Checks for IGBTs
IGBT
No.
Meter
Connection
Component is OK if
resistance (R) is:
Component is
defective if: (+) (–)
1 * W/T3 50 < 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 **