Maytag MXS20 Programming Manual page 65

FAILURE 95: WATCH DOG
If the watch dog has been activated, message 95 is logged in the Error log register. If this occurs often, contact a technician.
FAILURE 100: WEIGH NOCOMM
Washers with Weighing system only. Failure 100 occurs when the communication between washer computer and signal conditioner
weighing system (amplifier module) is interrupted. At the status Screen, you can see if the communication with the weighing system is
operational: Yes (Weigh NoComm: No communication with weighing system)
DIAGNOSE:
1. Check if the power supply of the signal conditioner weighing
system is available.
2. Check if the connectors on both sides of the communication
cable are still connected.
3. Check the connection at the RS232 – TTL converter.
4. Check the wiring for continuity.
FAILURE 101: WEIGH LOW
Washers with Weighing system only. Failure 101 occurs when the measured weight is much smaller than in normal operation. Check the
load cell Weighing Calibration screen (Advanced Menu) to obtain more info about the functionality of each individual load cell. Verify if the
value "Expected Free Weight XXX" in the Weighing Menu has still the correct value. This value must correspond with the real total weight
of the washer. If the actual measured weight value gets out of range, the Diagnostic Error 101 will appear. Weigh Low: (Weight of weighing
system is too low)
DIAGNOSE:
1. Check the load cell wiring.
2. Check the values for each individual load cell.
3. Check if the signal conditioner (amplifier) module
is still operational.
FAILURE 102: WEIGH HIGH
Washers with Weighing system only. Failure 102 occurs when the measured weight is much higher than in normal operation. Check the
load cell Weighing Calibration screen (Advanced Menu) to obtain more information about the function of each individual load cell. Verify that
the value "Expected Free Weight XXX" in the Weighing Menu still has the correct value. This value must correspond with the real total weight
of the washer. If the actual measured weight value gets out of range, the Diagnostic Error 102 will appear (Weigh High: Weight of weighing
system is too high)
DIAGNOSE:
1. Check the load cell wiring.
2. Check the values for each individual load cell.
3. Check if the signal conditioner (amplifier) module is still
operational.
Correct 24 Vdc power supply.
Connect the connectors on the washer computer and Signal
conditioner.
Connect the connectors at the RS232-TTL converter.
Repair the wiring.
Repair the wiring.
Adjust the mounting of the load cell.
Replace the signal conditioner (amplifier) module.
Repair the wiring.
Adjust the mounting of the load cell.
Replace the signal conditioner (amplifier) module.
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