Siemens LMV5 Quick Start Manual page 167

Error Diag.
Device Display
code code
LMV5 Control Range
0D VSD Limitation
module VSD Module
0E
A9
15
Internal Fault
VSD Module
VSD
16
module
17
18
19
1B
Internal Fault
1E
VSD Module
Internal Fault
1F
VSD Module
Any # Fault O2 Module The PLL5... has detected a fault.
01
AB PLL5..
02 Internal Fault O2
Module
04
05
LMV5 QSG Rev 4
Meaning for the LMV5x system
Fault with Base Unit (LMV5) VSD Module
VSD module could not offset speed differential within its control
limits
Fault during the speed calculation test
CAN bus fault, disturbed CAN bus transmissions
CRC fault of a parameter page
Page too long open
Page disrupted
Invalid access to parameters
Fault when copying a parameter page
External plausibility fault. This type of fault covers possible
faults occurring due to invalid presettings in the drive
commands. In response, the presettings will be ignored.
Internal plausibility fault. This type of fault detects faults that
cannot practically occur...
Fault with 02 Module (PLL5..)
CRC fault during ROM test
CRC fault during RAM test
Fault during key value check
Error code for time block overflow
Sec 5 Pg 41
Corrective action
1) This indicates that that the LMV5 has decreased its
signal to the VSD as much as possible and the motor
RPM is still to high. Increase VSD / LMV52 ramp times.
Also increase VSD braking if possible.
2) Re-standardize the speed. Ensure that the air damper
is at purge position for the standardization (should do
this automatically if the air damper is set to air-
infulencing)
3) Be sure to check combustinon after the re-
standardization
1) If fault occurs sporadically: Improve EMC.
2) If fault occurs constantly: Replace LMV5
1) Check CANBus cabling. Ensure that all cable shields
(screens) which are located in the cable sheath are
terminated correctly at each actuator, O2 module, and at
the LMV5x...
2) Check each CANBus Connector to ensure proper
termination (no conductors exposed on the back of the
plug)
3) Check terminating resistors for correct position.
1) Reset the LMV5
2) If fault occurred after changing a parameter, check
the parameters that were last changed.
3) If fault cannot be rectified by the reset: Restore
parameters form the AZL to the LMV5
4) Replace the LMV5
Check the special positions for valid value range (0-100
%)
1) If fault occurs sporadically: Improve EMC.
2) If fault occurs constantly: Replace LMV5
1) If fault occurs sporadically: Improve EMC.
2) If fault occurs constantly: Replace PLL5..
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