Siemens SINUMERIK 840Di Diagnostic Manual page 708

Overview of Alarms
SIMODRIVE alarms
300509 Axis %1 drive %2 converter frequency exceeded
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: 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)
Reaction: 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.
Remedy: 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).
Program Switch control OFF - ON.
Continuation:
300510 Axis %1 drive %2 error on actual current measurement zero balancing
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: The value of the actual current exceeded the maximum permissible limits during current zero
balancing (performed on every pulse disable). For example, the synchronous motor is rotating at a
small intermediate circuit voltage and current is flowing across the free-wheeling diodes in the
intermediate circuit.
Reaction: 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.
Remedy: - Error in actual current measurement (if necessary, replace 611D power section or controller module)
- Incorrect power section module (1/2 axis)
- Check the contact between the controller module and the power section
- Check the contact between the fixing screw and the controller module
Program Switch control OFF - ON.
Continuation:
2-708
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
11/2006