BENSHAW RSi SG Series User Manual

Chapter 7 – Trouble Shooting & Maintenance
7-8
1) Diode module and IGBT module check (7.5~ 40HP)
Module
Test polarity
Check
value
Number
Test polarity
Check
value
+ -
+ -
Diode
D1
R DCP+ Closed
D4
R N Open
DCP+ R Open N R Closed
D2
S DCP+ Closed
D5
S N Open
DCP+ S Open N S Closed
Diode D3
T DCP+ Closed
D6
T N Open
DCP+ T Open N T Closed
IGBT
Tr1
U DCP Closed
Tr4
U N Open
DCP U Open N U Closed
Tr3
V DCP Closed
Tr6
V N Open
DCP V Open N V Closed
Tr5
W DCP Closed
Tr2
W N Open
DCP W Open N W Closed
Charge resistor
M/C
R
S
T
U
V
W
D1
+
Electrolytic
capacitors
DCP
N
Tr3
Tr6
Tr5
Tr2
Tr1
Tr4
DCP+
D2
D3
D4
D5
D6

BENSHAW RSi SG Series Specifications

General

Brand	BENSHAW
Model	RSi SG Series
Category	DC Drives
Language	English