Motor Speed Monitoring - Lenze i950 Commissioning Manual

Address Name / setting range / [default setting]
0x2D45:002 Motor phase failure detection: Current threshold
1.0 ... [5.0] ... 10.0 %
0x2D45:003 Motor phase failure detection: Voltage threshold
0.0 ... [10.0] ... 100.0 V
0x2D45:004 Motor phase failure detection: Response - Motor
phase 2
0 No response
1 Fault > CiA402
2 Warning
13.9.5

Motor speed monitoring

This function monitors the motor speed during operation.
Parameter
Address Name / setting range / [default setting]
0x2D44:001 Overspeed monitoring: Threshold
50 ... [8000] ... 50000 rpm
0x2D44:002 Overspeed monitoring: Response
0 No response
1 Fault > CiA402
2 Warning
Configuring the motor control
Info
• 100 % ≡ Maximum current
• Background: in order to be able to reliably detect the failure of a
motor phase, first a certain must flow for the current sensor system.
The detection function is therefore only activated if the motor current
has exceeded the current threshold set here.
• Display of the present motor current: .
Voltage threshold for motor phase monitoring for the VFC control mode
(0x2C00 = 6).
• The monitoring function is triggered if the motor voltage exceeds the
threshold value and the motor current falls below the device-depend-
ent current threshold for longer than 20 ms.
Selection of the response following the detection of a motor phase fail-
ure directly after controller enable.
Associated error codes:
• 65289 | 0xFF09 - Motor phase missing
• 65290 | 0xFF0A - Motor phase failure phase U
• 65291 | 0xFF0B - Motor phase failure phase V
• 65292 | 0xFF0C - RANLI_CIMES_1000_20883
Info
• If the current motor speed reaches the threshold set, the response
selected in 0x2D44:002 is effected.
• The parameter can also be set and overwritten by selecting a motor
from the "motor catalog" of the engineering tool.
Selection of the response to the triggering of motor speed monitoring.
Associated error code:
• 65286 | 0xFF06 - Motor overspeed
Motor protection
Motor speed monitoring
275