Canbus Faults Including "Azl Not On Bus" And "System Test - Siemens LMV5 Series Technical Instructions

Technical Instructions
Document No. LV5‐1000
7‐2: Common Problems
CANbus Faults Including "AZL not on Bus" and "System Test"
The majority of all LMV5 wiring errors are related to the wiring of the CANbus network. The
CANbus network includes the following components:
 LMV5 controller
 AGG5.210 transformer(s)
 One main fuse (FU1) and two 12VAC fuses (FU2, FU3)
 AZL display
 AGG5.643 special CANbus cable
 SQM45/48/91 actuators
 PLL52 O
module (if equipped)
2
An illustration of the CANbus network with a single transformer is shown below in Figure 7‐2.1.
Figure 7‐2.1: Illustration of the LMV5 CANbus Network
Section 7 Page 2
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