Hitachi SJ100 SERIES Service Manual page 27

[2] 400V class
DC bus
voltage [Vdc]
800
700
600
500
400
300
200
100
0
Trip
Reset
Display
example of
monitoring output
frequency
OV.SRC level ; 750V +- 40V (continuously 100sec while stop)
Actual DC bus
voltage
Trip
on
Over
voltage
trip
Trip
During Under
Under voltage
voltage trip or
Waiting
for Retry
5-2
Over voltage level
790V +- 40V
BRD on/off level
740V+-40V
Under voltage
recovering level
440V +- 20V
Under voltage
level
380V +- 20V
on