Reactions:
Remedy:
Program Continuation:
Axis %1 drive %2 converter frequency exceeded
%1 = NC axis number %2 = Drive number
The motor has exceeded the maximum converter frequency fmax (see below). Converter frequency = speed * number of motor pole pairs Maximum converter frequency:
FSD: fmax = 1.12 * minimum(1.2*MD 1400, MD 1147) * MD1112 / 60 MSD: fmax = 1.12 * minimum(MD 1146, MD 1147) * number of pole pairs / 60 Number of pole pairs = integer component of rated motor frequency (MD 1134) * 60 / rated motor speed (MD 1400)
- NC not ready.
- The NC switches to follow-up mode.
- Channel not ready.
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
- Channel not ready.
Please inform the authorized personnel/service department.
Check number of encoder lines in MD 1005: $MD_ENC_RESOL_MOTOR (encoder resolution for motor measuring system).
Check encoder power supply (short circuit or ground fault).
Replace encoder, encoder cable or controller module.
Modify MD 1400: $MD_MOTOR_RATED_SPEED (rated motor speed),
Modify MD 1146: $MD_MOTOR_MAX_ALLOWED_SPEED (maximum motor speed). Modify MD 1147: $MD_SPEED_LIMIT (speed limit),
Modify MD 1112: $MD_NUM_POLE_PAIRS (number of motor pole pairs) (FDD),
Modify MD 1134: $MD_MOTOR_NOMINAL_FREQUENCY (rated motor frequency) (MSD).
Switch control OFF - ON.
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