List of faults and alarms
Faults and Alarms
3-1577
© Siemens AG 2007 All Rights Reserved
SINAMICS S List Manual (LH1), 07/2007
- encoder the highest possible dynamic response of the closed-loop excitation current control.
- check the speed control for any tendency to oscillate and if resonance effects occur, use a bandstop filter.
- do not exceed the maximum speed (p2162).
If there is no fault, then the delay time can be increased (p2178).
Reaction upon N:
NONE
Acknowl. upon N:
NONE
Reaction upon A:
NONE
Acknowl. upon A:
NONE
F07902 (N, A)
Drive: Motor stalled
Drive object:
VECTOR
Reaction:
OFF2 (NONE, OFF1, OFF3, STOP1, STOP2)
Acknowledge:
IMMEDIATELY
Cause:
For a vector drive the system has identified that the motor has stall for a time longer than is set in p2178.
Fault value (r0949, interpret decimal):
1: Stall detection using r1408.11 (p1744 or p0492).
2: Stall detection using r1408.12 (p1745).
3: Stall detection using r0056.11 (only for separately excited synchronous motors).
See also: p1744 (Motor model speed threshold stall detection), p2178 (Motor stalled delay time)
Remedy:
It should always be carefully ensured that the motor data identification (p1910) as well as the rotating measurement
(p1960) were carried out (also refer to p3925). For synchronous motors with encoder, the encoder must have been
adjusted (p1990).
For closed-loop speed and torque control with speed encoder, the following applies:
- check the speed signal (interrupted cable, polarity, pulse number, broken encoder shaft).
- check the speed encoder, if another speed encoder was selected using the data set changeover. This must be con-
nected to the same motor that is controlled for the data set changeover.
If there is no fault, then the fault tolerance (p1744 and p0492) can be increased.
If the stalled motor should take place in the range of the monitor model and for speeds of less than 30 % of the rated
motor speed, then a change can be made directly from the current model into the flux impression (p1401 Bit 5 = 1).
In this case, we recommend that the time-controlled model change is switched-in (p1750 bit 4 = 1) or the model
changeover limits are significantly increased (p1752 > 0.35 * p0311; p1753 = 5 %).
For closed-loop speed and torque control without speed encoder, the following applies:
- check whether the drive in the open-loop controlled mode (r1750.0) stalls under load. If yes, then increase the cur-
rent setpoint using p1610.
- check whether the drive stalls due to the load if the speed setpoint is still zero. If yes, then increase the current
setpoint using p1610.
- if the motor excitation (magnetizing) time (r0346) was significantly reduced, then it should be increased again.
- check the current limits (p0640, r0067). If the current limits are too low, then the drive cannot be magnetized.
- check the current controller (p1715, p1717) and the speed adaptation controller (p1764, p1767). If the dynamic
response was significantly reduced, then this should be increased again.
- check the speed encoder, if another speed encoder was selected using the data set changeover. This must be con-
nected to the motor that is controlled for the data set changeover.
If there is no fault, then the fault tolerance (p1745) or the delay time (p2178) can be increased.
For separately-excited synchronous motors (closed-loop control with speed encoder), the following applies:
- check the speed signal (interrupted cable, polarity, pulse number).
- ensure the correct motor parameterization (rating plate and equivalent circuit diagram parameters).
- check the excitation equipment and the interface to the closed-loop control.
- encoder the highest possible dynamic response of the closed-loop excitation current control.
- check the speed control for any tendency to oscillate and if resonance effects occur, use a bandstop filter.
- do not exceed the maximum speed (p2162).
If there is no fault, then the delay time can be increased (p2178).
Reaction upon N:
NONE
Acknowl. upon N:
NONE
Reaction upon A:
NONE
Acknowl. upon A:
NONE
Содержание SINAMICS S Series
Страница 1: ...sinamics s SINAMICS S List Manual 07 2007 ...
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Страница 1422: ...Function Diagrams Braking Module external 2 1422 Siemens AG 2007 All Rights Reserved SINAMICS S List Manual LH1 07 2007 ...
Страница 1750: ...Faults and Alarms List of faults and alarms 3 1750 Siemens AG 2007 All Rights Reserved SINAMICS S List Manual LH1 07 2007 ...
Страница 1778: ...Appendix List for motor code encoder code A 1778 Siemens AG 2007 All Rights Reserved SINAMICS S List Manual LH1 07 2007 ...
Страница 1812: ...Index D 1812 Siemens AG 2007 All Rights Reserved SINAMICS S List Manual LH1 07 2007 ...