Installing the STEPDRIVE
3-6
SINUMERIK 802S base line
Start-Up
3.4 Error messages and error elimination
LED
Name Color
Meaning Remedy
RDY green the only LED
that is lit
Drive ready If the motor does not rotate, it can
have the following causes:
- No pulses are output by the
control system.
- Pulse frequency too high
(motor is “out of step”)
- Motor load too large or
sluggish
DIS yellow the only LED
that is lit
Drive ready; motor not powered Activate ENABLE signal via CNC
FLT red is lit There is one of the following
errors:
- Overvoltage or undervoltage
- Short-circuit between the
motor phases
- Short-circuit between motor
phase and ground
Measure 85 V operating voltage
Check cable connections
TMP red is lit Overtemperature in the drive Drive defective; replace
all No LED is lit No operating voltage Check cable connections
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