Parker ac890 - Page 346

Trips & Fault Finding
11-15
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D
Trips Table for the 890CS
6511
Keypad
Display
6901
Keypad
Display
Description Possible Reason for Trip
DCHI OVERVOLTAGE
The shared dc link voltage
is too high
The supply voltage is too high
Trying to decelerate a large inertia load too quickly
The brake resistor is open circuit
OC OVERCURRENT
The current being drawn
from the drive is too high
HOT HEATSINK
The heatsink temperature is
too high
IT INVERSE TIME
High output current for
prolonged period, (warning
only)
DISP DISPLAY / KEYPAD
Keypad has been
disconnected from drive
whilst drive is running in
local control
Loose connection to display
SCI LOST COMMS Not used
Refer to Parker Hannifin technical support