Siemens SINUMERIK 840D sl Series Diagnostics Manual page 863

08/2005
- 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.
Remedy: Please inform the authorized personnel/service department. Check the configuration of
the direct measuring system. See NC-MD 30220: $MA_ENC_MODULE_NR and NC-MD
30230: $MA_ENC_INPUT_NR.
Program Con- Switch control OFF - ON.
tinuation:
300741
Axis %1 drive %2 asynchronous mode: feedforward control gain out of range
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: If motor inertia and motor nominal torque have been selected unfavorably, the asynchro-
nous motor feedforward control gain is beyond the range of the internal number format.
Reactions: - 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.
Remedy: Please inform the authorized personnel/service department.
• Operation without encoder: Reduce the number of encoder lines in MD 1005:
$MD_ENC_RESOL_MOTOR (encoder resolution for motor measuring system), since this
has an impact on the internal number format. Optional/additional measure: see operation
with encoder
• Operation with encoder: Reduce speed controller cycle MD 1001:
$MD_SPEEDCTRL_CYCLE_TIME (speed controller cycle).
Program Con- Switch control OFF - ON.
tinuation:
300742
Axis %1 drive %2 voltage/frequency mode: converter frequency invalid
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: Only converter frequencies (MD 1100: $MD_PWM_FREQUENCY (pulse width modula-
tion frequency)) of 4 kHz or 8 kHz are permissible in V/f mode (selected via MD 1014:
$MD_UF_MODE_ENABLE).
Reactions: - 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.
Remedy: Please inform the authorized personnel/service department. Check and, if necessary, cor-
rect the torque adaptation factor MD 1100: $MD_PWM_FREQUENCY (pulse width mod-
ulation frequency) or remedy the problem by deselecting V/f mode MD 1014:
$MD_UF_MODE_ENABLE.
© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
Overview of Alarms
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