SICK MAX Series

7 Maintenance
7.1 Error table
Table 37: Errors during installation
Error cause Possible consequences
Incorrect pin assignment No signals
Ambient temperature too high Damage to the device components
Cylinder bore hole too small Damage to the device components when
installing the device
Not noticing pointy or sharp edges Damage to male connectors, wires, cables
Careless handling of the device Damage to the device components
Welding work after installation Damage to the sensor housing or
electronics due to welding currents
Damage to the cable Short-circuiting or failure of the electronics
Male connector not sealed Short-circuiting or corrosion of
electronic components due to liquids
Ground or shielding connected incorrectly Signal interference, possible damage to the
electronics
Table 38: Errors during commissioning/operation
Output signal
F.S.O Output signal in the event of a fault
4.00 ... 20.00 mA > 21.0 mA
0.50 ... 4.50 V > 5.1 V
0.25 ... 4.50 V > 5.1 V
0.50 ... 9.50 V > 10.0 V
PWM (duty cycle) > 99%
Digital: CANopen / SAE J1939 Error message “FFFF”
Fault:
a) Position magnet missing
b) Position magnet in null or cushion zone
c) Malfunction or failure of the magnetostrictive element
7.2 Checking the functioning of the encoder
Encoder with analog interface
To verify the proper operation of the device, perform the following checks:
•
Connections and pin assignments
•
Supply voltage
•
Check the device by disconnecting it and testing it using an external supply
•
Check the device using a multimeter as described below
Measure the VDC output signal
Measure the following output signals:
•
0.25 ... 4.75 VDC
•
0.5 ... 4.5 VDC
•
0.5 ... 9.5 VDC
7 MAINTENANCE
38
O P E R A T I N G I N S T R U C T I O N S | MAX 8022793/ZXZ4/2018-07-24 | SICK
Subject to change without notice