REXROTH DIAX04, Troubleshooting Manual

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DIAX04 ELS-06VRS Description of Diagnostic Letters F... and E...
4-9
DOK-DIAX04-ELS-06VRS**-WA01-EN-P
Remedy:
1. Check the measuring system cable.
2. Check the measuring system.
3. In the case of linear measuring systems, check the mounting of
the measuring head.
F245 Encoder 2 failure: quadrant error
The evaluation of the additional optional encoder (encoder 2) is active. In
the evaluation of the sinusoidal input signals of the optional encoder, a
plausibility check is performed between these signals and the counter fed
by these signals. Doing this, an error has been encountered.
Cause:
1. Defective encoder cable
2. Disruptive electro-magnetic interference on the encoder cable
3. Defective encoder interface
Remedy for:
1. Exchange the encoder cable.
2. Keep the encoder cable well away from power cables.
3. Exchange the encoder interface.
F248 Low battery voltage
Cause:
For motors of series MKD and MKE, the absolute position information is
stored by a battery-powered electronic in the motor feedback. The battery
is designed for a 10-year life span. If the battery voltage falls below 3,1 V,
this message appears. The absolute encoder function will still be
preserved for about 2 weeks.
CAUTION
Malfunction in the control of motors and moving
elements
⇒
Replace the battery as soon as possible.
Instructions for Exchanging Batteries
Have the following tools and accessories ready:
•
Torx screwdriver size 10
•
Needle-nose pliers, torque wrench
•
New packaged battery
CAUTION
Malfunction in the control of motors and moving
elements
⇒
Turn off the power supply. Make sure it will not be
turned back on. Exchange the battery while the
control voltage (24V) is turned on.