Zapi ACE3 User Manual

AFFZP0BB – ACE3 – User Manual Page – 119/139
44) TH. PROTECTION
Cause:
The temperature of the controller base plate is above 85 °C.
The maximum current is proportionally decreased with the temperature excess
from 85 °C up to 105 °C. At 105°C the current is limited to 0 A.
Troubleshooting:
It is necessary to improve the controller cooling. To realize an adequate cooling
in case of finned heat sink important factors are the air flux and the cooling-air
temperature. If the thermal dissipation is realized by applying the controller base
plate onto the truck frame, the important factors are the thickness of the frame
and the planarity and roughness of its surface.
If the alarm occurs when the controller is cold, the possible reasons are a
thermal-sensor failure or a failure in the logic board. In the last case, it is
necessary to replace the controller.
45) MOTOR TEMPERAT.
Cause:
This warning occurs when the temperature sensor is open (if digital) or if it has
overtaken the MAX MOTOR TEMP threshold (if analog) (see paragraph 7.2.3).
Troubleshooting:
- Check the temperature read by the thermal sensor inside the motor through
the MOTOR TEMPERATURE reading in the TESTER function.
- Check the sensor ohmic value and the sensor wiring.
- If the sensor is OK, improve the cooling of the motor.
- If the warning is present when the motor is cool, replace the controller.
46) THERMIC SENS. KO
Cause
:
The output of the controller thermal sensor is out of range.
Troubleshooting:
This kind of fault is not related to external components. Replace the controller.
47) MOTOR TEMP. STOP
Cause:
The temperature sensor has overtaken the STOP MOTOR TEMP. threshold (if
analog, see paragraph 7.2.3).
Troubleshooting:
- Check the temperature read by the thermal sensor inside the motor through
the MOTOR TEMPERATURE reading in the TESTER function.
- Check the sensor ohmic value and the sensor wiring.
- If the sensor is OK, improve the cooling of the motor.
- If the warning is present when the motor is cool, replace the controller.

Zapi ACE3 Specifications

General

Brand	Zapi
Model	ACE3
Category	Inverter
Language	English