Siemens SINUMERIK 840D sl Series Diagnostics Manual page 700

Overview of Alarms
207580 <location>Drive: No sensor module with the matching component
number
Reaction: NONE
Acknowledge: NONE
Cause: A sensor module with the component number specified in p0141 was not found.
Alarm value (r2124, decimal):
Encoder data set involved (index of p0141).
Remedy: Correct p0141.
207800 <location>Drive: No power module present
Reaction: NONE
Acknowledge: IMMEDIATELY
Cause: The power module parameters cannot be read or no parameters are stored in the power
module.
See also: r0200
Remedy: Connect the data line to power module and restart the control unit (POWER ON).
207801 <location>Drive: Motor overcurrent
Reaction: OFF2 (NONE, OFF1, OFF3)
Acknowledge: IMMEDIATELY
Cause: The permissible motor limit current was exceeded.
- effective current limit set too low.
- current controller not correctly set.
- motor was braked with an excessively high stall torque correction factor.
- V/f operation: Up ramp was set too short or the load is too high.
- V/f operation: Short-circuit in the motor cable or ground fault.
- V/f operation: Motor current does not match the current of motor module.
Note:
Synchronous motor: Limit current= 1.3 * p0323
Induction motor: Limit current= 1.3 * r0209
Remedy: - check the current limits (p0323, p0640).
- check the current controller (p1715, p1717).
- reduce the stall torque correction factor (p0326).
- increase the up ramp (p1318) or reduce the load.
- check the motor and motor cables for short-circuit and ground fault.
- check the motor module and motor combination.
207802 <location>Drive: Infeed or power module not ready
Reaction: OFF2 (NONE)
Acknowledge: IMMEDIATELY
Cause: After an internal power-on command, the infeed or drive does not signal ready.
- monitoring time is too short.
- DC link voltage is not present.
- associated infeed or drive of the signaling component is defective.
- supply voltage incorrectly set.
Remedy: - increase the monitoring time (p0857).
- ensure that there is a DC link voltage. Check the DC-link busbar. Enable the infeed.
- replace the associated infeed or drive of the signaling component.
- check the line supply voltage setting (p0210).
See also: p0857
207805 <location>Drive: Power module I2T overload
Reaction: NONE
Acknowledge: NONE
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SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
© Siemens AG, 2005. All rights reserved
08/2005