Siemens LMV51 Series Basic Documentation page 214

Error Diagnostic Device
code code
1D 10 BU
1D 20 BU
1E # SA
VSD module
1E 01..3F SA
1E 01 SA
1E 02 SA
1E 04 SA
1E 08 SA
1E 10 VSD module Special Pos not reached
1E 20 SA
1F # VSD module Code for VSD Module Fault
1F 01 VSD module Speed Acquisition faulty
1F 02 VSD module Wrong Direction of Rotation
214/301
Siemens Building Technologies Basic Documentation LMV5...
HVAC Products 16 Addendum 1: List of fault status messages of LMV5... system
Display
Fault Running Time VSD
Fault Running Time Aux Actuator
Special Pos not reached
Special Pos not reached
Special Pos not reached
Special Pos not reached
Special Pos not reached
Special Pos not reached
Special Pos not reached
Meaning for the LMV5x system
Running time fault of VSD
Running time fault of auxiliary actuator 3
Basic unit has detected that 1 / several ac-
tuators (incl. VSD module) has / have not
reached the special position pertaining to
the Phase
The diagnostic value is made up of the fol-
lowing faults or their combinations (the in-
dividual diagnostic codes are added up in
hexadecimal format)
Positioning fault of air actuator
Positioning fault of fuel actuator
Positioning fault of auxiliary actuator 1
Positioning fault of auxiliary actuator 2
VSD has not reached the speed
Positioning fault of auxiliary actuator 3
Basic unit has detected a fault in connec-
tion with the VSD module
Internal VSD module test was not success-
ful
Fan rotates in the wrong direction
Troubleshooting
Check the relevant actuators to see if they are mechanically
overloaded
Check characteristics of VSD for linearity. Remove filters,
damping and delay members.
If fault occurs sporadically: Check CAN bus wiring.
Improve EMC.
If fault occurs constantly: Replace the defective basic unit
Check to see if the motor's direction of rotation is correct.
Check to see if the sensor disk on the motor is mounted the
correct way.
Change live conductor on the fan motor or check param-
eterized direction of rotation on the VSD and correct, if nec-
essary
CC1P7550en
13.08.2004