TECO S310+ Series User Manual

5-1
Chapter 5 Troubleshooting and Maintenance
5.1 Error Display and Corrective Action
5.1.1 Error Display and Corrective Action
Faults which can not be recovered manually
Display
Fault
Cause
Corrective Action
-
OV
-
Voltage too high
when stopped
Detection circuit
malfunction
Return the inverter
-
LV
-
Voltage too low
when stopped
1.
1.
Power voltage too low
2.
2. Pre-charge resistor or
fuse burnt out.
3.
3. Detection circuit
malfunction
1.
1.
Check if the power
voltage is correct
2.
2. Replace the pre-charge
resistor or the fuse
3.
3. Return the inverter
-
OH
-
The inverter is
overheated when
stopped
1.Detection circuit
malfunction
2. Ambient temperature
too high or bad ventilation
1.Return the inverter
2.Improve ventilation
conditions
EPr
EEPROM
error
Faulty EEPROM
Replace
EEPROM
COt
Communication
error
Communication
interruption
Cheak communication
circuit
cder
Current Sensor
detection error
Current sensor error or
circuit malfunction
Return the inverter
E
rr0
IGBT Effective
level judge
abnormal
IGBT Effective level judge
abnormal
Return the inverter
Err4
CPU work
abnormal
Noise interference
Please contact us if it
happens frequently.
Faults which can be recovered manually and automatically
Display
Fault
Cause
Corrective Action
OC
-
A
Over-current at
acceleration
1.
Acceleration time too
short
2.The capacity of the
motor exceeds the
capacity of the inverter
3. Short circuit between
the motor coil and the
case
4. Short circuit between
motor wiring and ground
5. the IGBT module
damaged
1.Set a longer acceleration
time
2. Replace inverter with one
that has the same rating as
that of the motor
3. Check the motor
4. Check the wiring
5. Replace the IGBT
module
OC
-
C
Over-current at
fixed speed
1.Transient load change
2.Transient power change
1.Increase the capacity
of the inverter
2. Add DCL on input side.
OC
-
d
Over-current at The preset deceleration Set a longer deceleration

TECO S310+ Series Specifications

General

Brand	TECO
Model	S310+ Series
Category	Controller
Language	English