Minebea OPT-564-71, Instruction Manual

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3
ERR LED (red)
Status Description
Off Off or operating
Flashes once Error counter has reached or exceeded preset value
Flickering Automatically detecting baud rate
Flashes twice
NMT slave or NMT master is detecting Heartbeat event
(Heartbeat consumer)
On Bus off
Connections
Interface Connector Pin Configuration
See "2-1. Rear Panel Interface Connector".
Cable Length
The correlation between baud rate and total distance is as follows:
Baud rate Total distance
10 kbps Up to 1,000 m
20 kbps Up to 1,000 m
50 kbps Up to 1,000 m
100 kbps Up to 600 m
125 kbps Up to 500 m
250 kbps Up to 250 m
500 kbps Up to 100 m
800 kbps Up to 50 m
1 Mbps Up to 25 m
Wiring precautions
 Always turn off power before connecting or disconnecting the equipment.

Do not turn on the AC power until all installation work is complete. There is no power ON/OFF switch on
the unit itself.
 Keep cables connected to the unit as far away as possible from sources of noise such as power lines or
control interfaces.
 Always ground the equipment. Use Type D single grounding. Do not share a ground with the power
supply system.
 Turn on the terminal resistance on the CANopen connector farthest from the PLC.
 Use a dedicated CANopen cable as the connecting cable.
Select a CiA DR-303-1 compliant connecting cable.