Troubleshooting and fault correction
Instruction handbook b maXX BM4400, BM4600, BM4700
Document No.: 5.12008.07
233
of 358
9
Temperature
motor
This monitoring function checks the temperature of the motor. In case the I
2
t threshold is
exceeded, the error „I2t overload“ is generated by the controller.
only with
KTY84
sensor
In case the set temperature threshold 1 is exceeded, the warning „temperature threshold
1 exceeded“ is generated by the controller.
In case the set temperature threshold 2 is exceeded, the warning „temperature threshold
2 exceeded“ is generated by the controller.
The KTY84-sensor has a minimal measuring value of about -30°C. In case the tempera-
ture falls below or in case there is a short-circuit at the sensor, the error „short-circuit tem-
perature sensor“ is generated.
The KTY84-sensor has a maximum measuring value of 250 °C. In case this temperature
is exceeded, or in case the sensor is not connected, the error „temperature sensor not
connected“ is generated by the controller.
with all sensors In case the threshold (depending on the model), which is determined in the temperature
switch or in the PTC sensor is exceeded, the error „overtemperature“ is generated by the
controller and the pulses are inhibited immediately.
Position controller This monitoring function checks the position deviation limit statical/dynamical. In case the
position deviation error is statical/dynamical greater than the set position deviation error
limit, there is an error message „position deviation error statical“ and „position deviation
error dynamical“. After monitoring time (position deviation time), additionally an error
message is generated and the pulses are inhibited immediately.
Safety relay This monitoring function checks if the safety relay is ready and if the control voltage in
order to activate the safety relay is connected. In case of an error the controller either gen-
erates an error or a warning, depending on, if the pulse enable is active or not.
Blocking
monitoring
This monitoring function checks the motor speed and the motor current.
If, for the period of time „blocking monitoring time“, the following two conditions are ful-
filled, the error/warning „drive blocked“ is generated by the controller and the pulses are
inhibited immediately.
m Motor speed = 0
m The motor current which is supplied by the device is equal to the set motor limit current
(current limit).
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