SEW-Eurodrive MOVIDRIVE compact MCH41A, System Manual

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System Manual – MOVIDRIVE® compact Drive Inverters
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Operating displays of MCH42A (INTERBUS LWL)
Operation
INTERBUS-LWL
LEDs The INTERBUS-LWL LEDs display the current status of the fieldbus interface and the
INTERBUS system:
The following figure shows the patterns of the INTERBUS-LWL LEDs that occur
frequently. The following tables explain the meanings of the LED patterns in more detail.
LED U
L
"U logic"
(green)
LED CC "Cable
check" (green)
LED BA "Bus
active" (green)
U
L
Logic voltage (green = OK)
CC Cable check (green = OK)
BA Bus active (green = OK)
RD Remote bus disabled (red = OFF)
TR Transmit (green = PCP active)
FO1 Fiber optic 1 (yellow = not OK)
FO2 Fiber optic 2 (yellow = not OK)
05226AEN
Figure 163: Frequent LED patterns
[A] Power-on of inverter (INTERBUS not yet active)
[B] Incorrect setting of DIP switches (INTERBUS not yet active)
[C] Initialization phase of INTERBUS system
[D] Correct INTERBUS operation
[E] Incorrect baud rate
State Meaning Remedy
On Power supply of bus electronics
is present -
Off Power supply of bus electronics
is missing Check that the connection unit is seated correctly and the
DC 24 V voltage supply for the inverter is applied.
State Meaning Remedy
On Incoming remote bus
connection is functioning
properly -
Off Incoming remote bus
connection is faulty Check the incoming fiber optic remote bus and the LED FO1.
State Meaning Remedy
On Data transfer on the INTERBUS
is active -
Off No data transfer; INTERBUS is
stopped Check the incoming fieldbus cable. Use the diagnostic
display on the INTERBUS interface module (master) to
localize the fault further.