Alarms; Troubleshooting Chart - Calpeda I-MAT Serie Instrucciones De Uso

17. Alarms

Code Description
Blockage due to no water;
Er01
Failed to reach set-point.
EN
Er02 Primary pressure transducer fault
Er03 Secondary pressure transducer fault
Er04 Blockage due to low supply voltage
Er05 Blockage due to high rectified supply voltage
Er06 Blockage due to overcurrent in the electro pump motor
Er07 Blockage due to unbalanced output phases
Blockage due to direct short circuit between the phases
Er08
of output terminals
Er09 Blockage due to missing output phases
Er10 Blockage due to internal overheating
Er11 Blockage due to overheating of the power module
Er12 Blockage due to exceeded of number of starts
Blockage due to missing/wrong setting of main
Er13
parameters
Er14 Blockage due to float switch 1 intervention
Er15 Blockage due to float switch 2 intervention
Er16 Internal Hardware error
Er17 Not implemented
Er18 Cascade mode communication error
Er19 Cascade expansion card failure
Er20 Blockage due to low voltage 24 V
Er21 Fieldbus expansion card failure
Er22 Fielbus communication failure

18. Troubleshooting chart

Fault
Short-circuit
Frequency
converter
overheating
Low supply voltage
High supply voltage
Overcurrent
Electronic card
overheating
Dry-run
1) For electrical reparation, disconnect the supply voltage from the frequency converter. Refer to the safety
regulation described in section 4.
Page 44 / 144
Probable cause
- Motor or cable short-circuit
- Wrong power supply connection
- Wrong connection of the cable shield
- Ambient temperature too high
- One or more frequency converter fans
faulty
- Supply voltage lower than 330V
- Supply voltage higher than 520V
- Step up/down ramp too high
- Improper connection of the motor
- Wrong motor settings
Electronic card overheating
The pump is running with no water
Causes
No water in the suction tank.
The system stops and restarts itself automatically:
- One attempt every 10 minutes for 6 times
- One attempt every hour for 24 times
- One attempt every 24 hours for 30 times
Cable not connected, broken connection, transducer
faulty.
Cable not connected, broken connection, transducer
faulty.
Supply voltage lower than 330V
- The system automatically restart when the clamp
voltage is higher than 345V.
Supply voltage higher than 520V
- The system automatically restart when the clamp
voltage is lower than 520V.
The system will restart after a time, defined in parameter
AP41, from the state variation of the float switch.
The system will restart after a time, defined in
parameter AP43, from the state variation of the float
switch.
Contact the technical assistance.
Check the RS485 connection.
Cascade expansion card not connected or faulty
Cascade expansion card not connected or faulty
Check the MODBUS connection and the devices in
the network
Possible solution
- Check motor connections
- Check power supply voltage
- Check the condition of installation (see section 3.1)
- Change the defective fans
- Check the supply line
- Check the supply line
- Increase the time of the ramps (see section 16.2)
- Check the parameters of the motor (see section 16.1)
- Check the frequency converter settings and motor data (see
section 16.1)
- Check the condition of installation (see section 3.1)
- Reduce the carrier frequency
- Check the suction and delivery manifold and the priming
conditions
- Check the performances curves of the pump
I-MAT_Ed5 - Operating Instructions