Siemens Sinumerik 840C Diagnostics Manual page 215

04/96
07/97
300750 Speed controller adapt.: n–max < n–min
300850
Scan
Cyclic after control power up
Effect
for MSD:
S
Pulse suppression, motor runs down
S
SIMODRIVE_READY and DRIVE_READY are cancelled.
S
Reset error
for FDD:
S
Controllers are disabled, motor is braked
S
SIMODRIVE_READY and DRIVE_READY are cancelled.
S
Reset error
Response via MD 1613.0 can be configured as from drive SW 2.
Alarm output can be activated via MD 1012.4 as from V. 5.2 (611D: SW 3).
S
MD 1012.4 = 0: 300750
S
MD 1012.4 = 1: 300850
Explanation
The upper adaptation speed MD 1412 is less than the lower adaptation speed MD 1411.
Remedy
Enter a larger value for upper adaptation speed MD 1412 than for lower adaptation speed MD 1411.
Note
Applies as from SW 3
300751 Speed controller amplification too high
Scan
Cyclic after control power up
Effect
for MSD:
S
Pulse suppression, motor runs down
S
SIMODRIVE_READY and DRIVE_READY are cancelled.
S
Reset error
for FDD:
S
Controllers are disabled, motor is braked
S
SIMODRIVE_READY and DRIVE_READY are cancelled.
S
Reset error
Response via MD 1613.0 can be configured as from drive SW 2.
Explanation
The P gain of the speed controller MD 1407 or MD 1408 is too large.
Remedy
Enter lower value for P gain MD 1407 or MD 1408 for speed controller; or the motor zero-speed current MD 1118
must be greater than zero.
Note
Applies as from SW 3
300752 Blocking freq. I-set filter wrong
Scan
Cyclic after control power up
Effect
for MSD:
S
Pulse suppression, motor runs down
S
SIMODRIVE_READY and DRIVE_READY are cancelled.
S
Reset error
for FDD:
S
Controllers are disabled, motor is braked
S
SIMODRIVE_READY and DRIVE_READY are cancelled.
S
Reset error
Response via MD 1613.0 can be configured as from drive SW 2.
Explanation
Sampling theorem violated.
Remedy
The blocking frequency MD 1210, MD 1213, MD 1216, MD 1219 for each current filter must be greater than the
reciprocal value of two current controller clock pulses MD 1000.
Note
Applies as from SW 3
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Siemens AG 2001 All rights reserved 6FC5198–jAB40
SINUMERIK 840C / SIMODRIVE 611–D (DA)
1 Alarms
1.5.1 Alarm description
Reset key
Reset key
Reset key
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