Siemens SINUMERIK 840D sl Series Diagnostics Manual page 701

08/2005
Cause: Alarm threshold for I2t overload (p0294) of the power module exceeded.
The response parameterized in p0290 becomes active.
See also: p0290
Remedy: - reduce the continuous load.
- adapt the load duty cycle.
- check the assignment of the rated currents of the motor and motor module.
207810 <location>Drive: Power module EEPROM without rated data
Reaction: NONE
Acknowledge: IMMEDIATELY
Cause: No rated data are stored in the power module EEPROM.
See also: r0206, r0207, r0208, r0209
Remedy: Replace the power module or inform Siemens Customer Service.
207815 <location>Drive: Power module has been changed
Reaction: NONE
Acknowledge: IMMEDIATELY
Cause: The code number of the actual power module does not match the saved number.
Fault value (r0949, decimal):
Number of the incorrect parameter.
See also: r0200, p0201
Remedy: Connect the original power module and power-up the control unit again (POWER ON) or
set p0201 to r0200 and exit commissioning with p0010 = 0.
For infeeds, the following applies: Commutating reactors or line filters must be used that
are clearly specified for the new power module. A line supply and DC link identification
routine (p3410 = 5) must then be carried-out. It is not possible to change the power module
without re-commissioning the system if the type of infeed (A_Infeed, B_Infeed, S_Infeed),
the type of construction/design (Booksize, Chassis) or the voltage class differ between the
old and new power modules.
For inverters, the following applies: If the new power module is accepted, then if required,
the current limit p0640 can be reduced by a lower maximum current of the power module
(r0209) (torque limits stay the same).
If not only the power module is changed, but also the motor, then the motor must be re-
commissioning (e.g. using p0010 = 1).
See also: r0200
207820 <location>Drive: Temperature sensor not connected
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.
Remedy: - connect the module with temperature sensor.
- set the available temperature sensor (p0600, p0601).
See also: p0600, p0601
207840 <location>Drive: Infeed operation missing
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).
© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
Overview of Alarms
2-701