Trips and Fault Finding
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D Page 10-17
8
9
10
11
B
C
D
1
2
3
4
5
6
7
E
Hexadecimal Representation of Trips
When more than one trip is to be represented at the same time then the trip codes are simply added together
to form the value displayed. Within each digit, values between 10 and 15 are displayed as letters A to F
For example referring to the tables above, if the ACTIVE TRIPS parameter is 02A8, then this represents:
a “2” in digit 3
an “8” and a “2” in digit 2
(8+2 = 10, displayed as A)
an “8” in digit 1
This in turn represents the active trips BRAKE RESISTOR, MOTOR STALLED, INPUT 1 BREAK and
HEATSINK TEMP, (an unlikely situation).
In the same way, the ACTIVE TRIPS + parameter displaying 02A8 would represent CURRENT LIMIT,
DESAT (OVER I), TRIP 22 and 24V failure, (another unlikely situation).
Automatic Trip Reset (6901 keypad)
Using the Keypad, the drive can be configured to automatically attempt to reset a trip when an attempt is
made to start driving the motor, or after a preset time once the trip condition has occurred. The following
function blocks (MMI menus) are used to enable automatic trip resets.
Seq & Ref::Auto Restart (Auto-Reset)
Seq & Ref::Sequencing Logic
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