Page 363 - Electronic Mechanic - TP - Volume - 2

ELECTRONICS MECHANIC - CITS

Green Yellow Priority Display Drive Status Definitions

ROM Failure-Both LEDs Flashing same
Flashing – R2 Flashing – R2 2
time
RAM Failure-Both LEDs Flashing
Flashing – R2 Flashing – R2 3
Alternately
R1 - Ontime900mSec.R2- Ontime300mSec.

With Operator Panels (BOP&AOP)

The following fault codes for the Basic Operator and Advanced Operator Panels indicate the status of the inverter:
Over current (FaultF0001)

BOP/AOP Fault code Status of MICROMASTER420 Inverter
F0001 Over current

F0002 Over voltage
F0004 Inverter over temperature (internal PTC)
F0011 Motor over temperature by I²t calculation

Ramp up time set too short. Increase P1120 accordingly.
Voltage boost too high. Reduce parameters P1310,P1311andP1312 to prevent excessive magnetization of the
motor.
Overvoltage (FaultF0002)

Ramp down time set too short-IncreaseP1121accordingly.
Result: Thus the Quick commissioning of MM-420 has been completed.

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CITS : E & H - Electronics Mechanic - Exercise 233