ZENER 8000-V Installation Manual
IM00165
53
Symptom
Cause
Remedy
ZENER 8000-V’s maximum current.
ratings.
OVER VOLTAGE message appears.
Input voltage has exceeded
maximum ratings.
See general specification and check
the input is within ratings. Check
input supply for voltage transients.
Fix the external source.
Motor is overhauling.
Ensure load cannot overdrive the
motor.
Any of these messages appear:
Tj OVERTEMP
HOT INTERNAL AIR
Ths OVERTEMP
T* OVERTEMP
(* is any digit 1..8)
Ventilation problem.
Ensure operating ambient
temperature is within specification.
Check fans are rotating freely and
there is no build-up of dust or
debris in blades. Visually examine
the heatsink fins for build-up of
dust and debris.
Drive is constantly overloaded.
Check the ZENER 8000-V
continuous current and ambient
temperature rating.
Motor is unstable.
SLIP COMP is set too high.
Check that MOTOR NAMEPLATE
RPM setting is equal to the motor
rated speed. Check that
NAMEPLATE CURRENT setting is
equal to the motor nameplate
current. Reduce SLIP COMP setting.
FLUX PLUS set too high.
Reduce FLUX PLUS setting.
Incorrect motor voltage selected.
Enter correct MOTOR VOLTAGE
from the MOTOR menu.
Incorrect motor frequency
selected.
Enter correct MOTOR FREQUENCY
from the MOTOR menu.
CURRENT LIMIT is set too low.
Increase CURRENT LIMIT setting.
Excessive Motor Heating.
Motor is running at low speeds for
long times.
Do not run the motor heavily
loaded at low speeds for long
periods unless the motor has been
suitably de
‑
rated or is force cooled.
Motor damaged or incorrectly
wired.
Check the motor and motor wiring
for faults.
Incorrect motor voltage selected.
Enter correct MOTOR VOLTAGE
from the MOTOR menu.
Incorrect motor frequency
selected.
Enter correct MOTOR FREQUENCY
from the MOTOR menu.
