Low battery voltage
Indramat · CLM01.3-M Flying Cutoff Control
What does F248 mean?
For Indramat MKD and MKE series motors, the absolute position information is stored by a battery-powered electronic system in the motor feedback. This message appears if the battery voltage falls below 3.1 V. The absolute encoder function will still be preserved for about 2 weeks. CAUTION: Malfunction in the control of motors and moving elements, possible mechanical injuries. Replace the battery as soon as possible.
Common Causes
- Battery voltage for the absolute encoder feedback on MKD and MKE motors has fallen below 3.1 V due to normal aging (10-year lifespan) or premature failure.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Immediately prepare to replace the battery, acquiring a new packaged battery (Part No. 257101) and necessary tools (Torx screwdriver size 10, needle-nose pliers, torque wrench).
- 2
Before starting, turn off and secure the main power supply to the motor, ensuring it cannot be inadvertently re-energized for mechanical safety.
- 3
Keep the 24V control voltage to the Indramat DIAX04 SSE-03VRS drive controller active during battery replacement to maintain absolute position information.
- 4
Carefully follow the manufacturer's procedure for accessing and exchanging the battery in the Indramat MKD or MKE motor feedback unit.
- 5
After replacement, dispose of the old battery according to local regulations. Verify the fault clears and the absolute position is retained.