User Manual of SY5000 series AC Drive Toubleshooting
~92~
Intelligent
power
module
(IPM)
protection
1. Short-circuit happens
in the upper and lower
bridge arms of IPM;
2. Other reason causes
oversized transcient
current.
Please identify reasons,
and reset after taking
approximate measures. If
this persists, please seek
technical support.
Transcient
power-cut
or under-
voltage fault
The power voltage
declines or transcient
power failure occurs in
operation.
Please check power status
and wiring of input side.
Over-heat of
inverter
1. Cooling fan is
abnormal;
2. Ambient temperature
is too high;
3. Air vent is blocked
1. Check fan operation;
2.Make inverter operating
environment meet the
requirements;
3. Eliminate dust of the
air vent.
Over load
1. Motor over-load;
2. V/F feature or torque
compensation capacity
is uncertain.
1. Decrease load or
replace larger capacity
inverter;
2. Increase or decrease
torque compensation
voltage
E
2
PROM
write data
error
Errors happen when
E
2
PROM stores data.
Please store this
parameter again by using
SET key, or initialize by
using E-059 parameter,
cut off the power and then
power on.
Emergency
stop
Terminal input, EMS
acts
Confirm the signal
connection.
(Remark) E
2
PROM errors of wiring data, just display anomaly and don’t trip.
7.3 Anomaly and countermeasure
Reason and countermeasure of anomaly are as shown in Figure 7-3.
