Siemens SINUMERIK 840Di Diagnostic Manual page 782

Overview of Alarms
SIMODRIVE alarms
310608 Axis %1 drive %2 speed controller at limit
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: The speed controller output is lying for an impermissibly long time at its limit (MD 5605:
SPEEDCTRL_LIMIT_TIME (speed controller limit time)). The monitoring system is only active when
the speed setpoint is below the speed threshold in MD 5606: SPEEDCTRL_LIMIT_THRESHOLD
(speed controller limit threshold).
Reaction: Mode group 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: - Is the drive blocked?
- Is the encoder connected? (check the encoder cable)
- Check the shield connection on the encoder cable
- Encoder defective?
- Check the encoder resolution
- The Uce monitoring circuit has been activated (perform a reset by switching the power supply off and
on again).
- Replace the control module.
- Modify MD 5605: SPEEDCTRL_LIMIT_TIME and MD 5606: SPEEDCTRL_LIMIT_THRESHOLD in
accordance with the mechanical and dynamic features of the axis.
Program Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Continuation:
310609 Axis %1 drive %2 encoder cut-off frequency exceeded
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: Actual velocity value exceeds encoder limit frequency fg,max = 650kHz
Reaction: Mode group 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: - The wrong encoder may be in use.
- Does the number of encoder lines match the setting in MD 5005: ENC_RESOL_MOTOR (encoder
resolution for motor measuring system)?
- Is the encoder cable connected correctly?
- Is the encoder cable shield installed flat?
- Replace the encoder.
- Replace the 611D hydraulic module.
- Modify MD 5605: SPEEDCTRL_LIMIT_TIME and MD 5606: SPEEDCTRL_LIMIT_THRESHOLD in
accordance with the mechanical and dynamic features of the axis.
Program Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Continuation:
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© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
11/2006