Operating the Drive
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D
Page
7-29
8
9
10
11
A
B
C
D
1
2
3
4
5
6
7
E
Other 890 Drives on the Bus
Set the ENABLE parameter in the SLEW RATE LIMIT function block to FALSE.
This disables ramp-hold during deceleration on high link volts feature.
If in Volts/Hz motor control mode,
the VOLTAGE MODE parameter in the
VOLTAGE CONTROL function block
MUST
be set to FIXED. This will ensure the
motor is not overfluxed by the boosted 720V DC Bus. Failure to do this may lead to
motor overheating and possible burn out.
Setting for DC VOLTS DEMAND Parameter
Drive
Voltage
Rating (V)
Under Volts
Trip Level (V)
Over Volts
Trip Level
(V)
Recommended
DC VOLTS
DEMAND
380V – 460V
410V 820V 720V
220V – 240V
205V 410V 370V