Alarm Warnings; Hf-Hardware Fault Trip Codes - Control Techniques Commander SE Guide D'utilisation

8.2

Alarm warnings

There are three ALARM codes which flash in the right hand display, along with the
standard display, to warn the user that if no action is taken, the drive will trip. The codes
are shown in Table 8.2.
For example:
Display
OVL
**
hot
*
br.rS
*
Does not apply to Size 1 units.
**
hot will be displayed when the drive automatically reduces its switching frequency to
try and prevent the drive from tripping on heatsink over temperature Oht2.
8.3

HF-Hardware fault trip codes

HF trips are internal hardware faults within the drive. Powering the drive down and re-
applying power could clear the fault.
For full list of hardware fault trip codes, refer to the Commander SE Advanced User
Guide.
If a HF trip occurs, the Drive Healthy relay will open to indicate this. The serial
NOTE
communications will not function during a HF trip.
Commander SE User Guide
Issue Number 9
50.0
Fr
Condition
Motor current greater than
l x t overload programmed rated motor
current
Drive running outside
Heatsink/IGBT
specified ambient
junction temperature
temperature/Drive de-rating
high
curves
Braking resistor Braking resistor thermal
overload model exceeded
Table 8.2 Alarm Warnings
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hot 50.0
Cause
Reduce motor current (load)
Reduce ambient
temperature or reduce
motor current (load)
See Commander SE
Advanced User Guide
Solution
73