Siemens Sinumerik 840D sl Diagnostic Manual page 788

Overview of Alarms
SINAMICS-Alarms
For inverters, the following applies:
If the new power unit is accepted, then if required, the current limit p0640 can be reduced by a lower
maximum current of the power unit (r0209) (torque limits stay the same).
If not only the power unit is changed, but also the motor, then the motor must be re-commissioning
(e.g. using p0010 = 1). This is also necessary if motor data is still to be downloaded via DRIVE-CLiQ.
If the comparison stage in p9906 is set to 2, 3, then commissioning can be exited (p0010 = 0) and the
fault acknowledged.
See also: r0200 (Power unit current code number)
207820 <location>Drive: Temperature sensor not connected
Message -
value:
Drive object: SERVO, VECTOR
Reaction: NONE
Acknowledge: NONE
Cause: The temperature sensor for motor temperature monitoring, specified in p0600, is not available.
- parameter download with "incorrect" setting.
- module with sensor evaluation has been, in the meantime, been removed.
- temperature sensor via Motor Module, not for CU310.
Remedy: - connect the module with temperature sensor.
- set the available temperature sensor (p0600, p0601).
See also: p0600, p0601
207825 <location>Drive: Simulation mode activated
Message -
value:
Drive object: VECTOR
Reaction: NONE
Acknowledge: NONE
Cause: The simulation mode is activated.
The drive can only be powered up if the DC link voltage is less than 40 V.
Remedy: The alarm automatically disappears if simulation mode is de-activated with p1272 = 0.
207826 <location>Drive: Simulation mode with DC link voltage too high
Message -
value:
Drive object: VECTOR
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: The simulation mode is activated and the DC link voltage is greater than the permissible value of 40 V.
Remedy: - switch out (disable) simulation mode (p1272 = 0) and acknowledge the fault.
- reduce the input voltage in order to reach a DC link voltage below 40 V.
207840 <location>Drive: Infeed operation missing
Message -
value:
Drive object: SERVO, VECTOR
Reaction: OFF2 (NONE)
Acknowledge: IMMEDIATELY
Cause: The signal "infeed operation" is not present although the enable signals for the drive have been
present for longer than the parameterized monitoring time (p0857).
- infeed not operational.
- interconnection of the binector input for the ready signal is either incorrect or missing (p0864).
- infeed is presently carrying out a line supply identification routine.
Remedy: - bring the infeed into an operational state.
- check the interconnection of the binector input for the signal "infeed operation" (p0864).
- increase the monitoring time (p0857).
- wait until the infeed has completed the line supply identification routine.
See also: p0857 (Power unit monitoring time), p0864 (Infeed operation)
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SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
© Siemens AG 2009 All Rights Reserved
03/2009