Fault Tracking; What This Chapter Contains; Alarm And Fault Indications; How To Reset - Salicru CV50-008-4F User Manual

8 Fault Tracking

8.1 What this chapter contains

This chapter describes how to reset faults and view fault history. It also lists all alarm and fault messages
including the possible cause and corrective actions.
 Only qualified electricians are allowed to maintain the inverter. Read the safety
instructions in chapter Safety precautions before working on the inverter.

8.2 Alarm and fault indications

Fault is indicated by LEDs. See Operation Procedure. When TRIP light is on, an alarm or fault message on
the panel display indicates abnormal inverter state. Using the information reference in this chapter, most alarm
and fault causes can be identified and corrected. If not, contact with SALICRU.

8.3 How to reset

The inverter can be reset by pressing the keypad key STOP/RST, through digital input, or by switching the
power input. When the fault has been removed, the motor can be restarted.

8.4 Fault history

Function codes P07.27~P07.32 store 6 recent faults. Function codes P07.33~P07.40, P07.41~P7.48 and
P07.49~P07.56 show drive operation data when the latest 3 faults occur.

8.5 Fault instruction and solution

Do as the following after the inverter fault:
1. Check to ensure there is nothing wrong with the keypad. If not, please contact with SALICRU.
2. If there is nothing wrong, please check P07 and ensure the corresponding recorded fault parameters to
confirm the real state when the current fault occurs by all parameters.
3. See the following table for detailed solution and check the corresponding abnormal state.
4. Eliminate the fault and ask for relative help.
5. Check to eliminate the fault and carry out fault reset to run the inverter.
Fault
Fault type
code
OUt1 IGBT Ph-U fault
OUt2 IGBT Ph-V fault
OUt3 IGBT Ph-W fault
Over-current when
OC1
acceleration
Over-current when
OC2
deceleration
96 - 144
Possible cause
 The acceleration is too fast
 IGBT module fault
 Malfunction caused by interference
 The connection of the driving wires is
not good,
 Grounding is not properly
 The acceleration or deceleration is
too fast
 The voltage of the grid is too low
 The power of the inverter is too low
What to do
 Increase Acc time
 Change the power unit
 Check the driving wires
 Inspect external equipment and
eliminate interference
 Increase the ACC time
 Check the input power
 Select the inverter with a larger
power
Fault Tracking