SEW-Eurodrive DH 41B Series - Service; System Bus CAN 1;CAN 2

9
Service
System bus CAN 1/CAN 2
Manual – DHE/DHF/DHR21B (standard) and DHE/DHF/DHR41B (advanced)
73
9 Service
9.1 System bus CAN 1/CAN 2
Problem
Communication via system bus CAN 1 or CAN 2 is not working.
Remedy
Perform the following steps one after the other until the problem is corrected.
Initial status
• System bus CAN 1 or CAN 2 is connected correctly.
• Communication via the CAN1 or CAN2 system bus was started up correctly for
the controller in the Application Configurator and for the axis in the drive startup for
MOVI-PLC
®
/CCU.
↓
Bus connector connected?
No→
[A]
Yes
↓
How does the LED of the CAN 1 or
CAN 2 state respond?
Orange →
[B]
Green →
[C]
Lights up or flashes red?
↓
The system bus CAN1 or CAN2 is off or
the system bus communication is faulty.
↓
[A]
↓
Check the set baud rate.
↓
Baud rate OK?
No →
[D]
Yes
↓
Ensure that terminating resistors are connected correctly.
[A]
Check the bus cabling.
[B]
System bus CAN 1 or CAN 2 is being initialized.
[C]
Bus communication is OK.
↓
Check the configuration of the axes in the Application Configurator.
[D]
Correct the baud rate.
22900055/EN – 08/2016