Zapi COMBI AC1, User Manual

Page: 83 / 86

14) “EEP WARNING”
Cause:
Eeprom checksum failed
Troubleshooting:
Try to execute a CLEAR EEPROM operation (refer to Console manual).
Switch the key off and on to check the result. If the alarm occurs
permanently, it is necessary to replace the controller. If the alarm disappears,
the previously stored parameters will have been replaced by the default
parameters.
15) “LIFT + LOWER”
Cause:
This alarm occurs when both forks movement requests(Lift + Lower) are
active at the same time.
Troubleshooting:
Check the wiring of the Lift and lower inputs (use the readings in the
TESTER to facilitate the troubleshooting). Check the microswitches for
failures.
A failure in the logic is possible too. So, when you have verified the travel
demand switches are fine working and the wiring is right, it is necessary to
replace the controller.
16) “EEPROM KO”
Cause:
It’s due to a HW or SW defect of the non-volatile embedded memory
supporting the controller parameters. This alarm does not inhibit the machine
operations, but the truck will work with the default values.
Troubleshooting:
Try to execute a CLEAR EEPROM operation (refer to Console manual).
Switch the key off and on to check the result. If the alarm occurs
permanently, it is necessary to replace the controller. If the alarm disappears,
the previously stored parameters will have been replaced by the default
parameters.
17) “PUMP MOTOR TEMPERATURE”
Cause:
This warning occurs when the temperature sensor is opened (if digital) or has
overtaken the threshold of 150° (if analog).
Troubleshooting:
Check the thermal sensor inside the motor (use the MOTOR
TEMPERATURE reading in the TESTER menu); check the sensor ohmic
value and the sensor wiring. If the sensor is OK, improve the air cooling of
the motor. If the warning is present when the motor is cool, then the problem
is inside the controller.
18) “HIGH TEMPERATURE”
Cause:
This alarm occurs when the temperature of the power section plate is higher
than 75°. Then the maximum current decreases proportionally with the
temperature increases from 85° up to 105°. At 105° the Current is limited to 0
Amps.
Troubleshooting:
Improve the air cooling of the controller. If the alarm is signaled when the
controller is cold, the possible reasons are a thermal sensor failure or a
failure in the logic card. In this case, it is necessary to replace the controller.
AEQZP0BA – COMBI AC1 - User Manual Page - 83/86