Parker ac890 - Page 258

The Keypad
9-14
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D
* KEY INACTIVE *
REMOTE SEQ
* * * TRIPPED * * *
HEATSINK TEMP
Alert Message Displays
A message will be displayed on the Keypad when either:
• A requested operation is not allowed:
The top line details the illegal operation, while the bottom line gives
the reason or cause. See example opposite.
• The unit has tripped:
The top line indicates a trip has occurred while the bottom line gives
the reason for the trip. See example opposite.
Most messages are displayed for only a short period, or for as long as an illegal operation is tried, however,
trip messages must be acknowledged by pressing the E key.
Experience will show how to avoid most messages. When using the 6901 keypad, they are displayed in
clear, concise language for easy interpretation. Refer to Chapter 11: “Trips and Fault Finding” for trip
messages and reasons.