MAHA CONNECT Series, Original Operating Instructions

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9.3 Check sensor function
WARNING
•
For functional tests on the roller set, it is imperative that the motor protection
switches are switched off.
•
During the test of the sensor functions, the main switch may only be operated by
authorised and trained personnel.
•
Make sure that there are no other persons in the danger zone.
•
Only press the sensing rollers individually, never simultaneously.
Function Sensor
Press sensing roller LED of the Occupied sensor must light up, left + right
Rotate sensing roller Speed sensor of the sensing roller must flash, left + right
Rotate brake roller Speed sensor of the brake roller must flash, left + right (if
necessary, the motor brake must be released, see section
"Repair > Releasing the motors with mechanical brake")
Check range spring signal Load the brake roller or motor in one direction and check
whether the measured values on the test bench display
change. This is only a function check!
Check weighing sensors Load the test bench at each corner and observe a change in
the measured value via the service technician screen. This is
only a function check!
9.4 Adjusting the switching distance of the sensors
All 6 Namur sensors are identical and have a switching distance of max. 4 mm. To
ensure safe operation, it is important that the sensors are correctly adjusted. A
switching distance of 2...3 mm is recommended for safe and fault-free operation.
NOTICE
The locknuts have locking teeth to prevent rotation (see Fig. A). Tighten the locknuts
gently, do not overtighten. If at hand, a torque wrench can also be used (tightening
torque: 10 Nm).