YASKAWA SI-S3/V Series Installation Manual page 27

Using Automatic Bit Rate Detection
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Note: This function is available in option unit software version 3102 and later.
Set drive parameter F6-36 to 0 to enable automatic bit rate detection and cycle the drive
power supply.
When set to automatic bit rate detection, after power up the CANopen Option will listen to
messages on the bus and adjust its bit rate setting automatically. When the bit rate is found
the CANopen Option will enter pre-operational status and transmit a boot up message
containing the drive's node ID. The CANopen Option will not send any messages until the
bit rate is detected.
As long as the automatic bit rate detection is in progress, the RUN and ERR LEDs on the
CANopen Option will flicker alternatingly.
Note: 1. There must be bus traffic that the CANopen Option can listen to in order to detect the bit rate. If there is
low traffic, the bit rate detection might take a long time.
2. The bit rate detected by the CANopen Option is not automatically saved. When cycling the drive power
supply, the CANopen Option will perform bit rate detection again.
3. Besides the master, there must be at least one other node in the network that is set to the correct bit rate.
For example, the bit rate cannot be detected if the network consists of a master that is set up for a certain
bit rate (controller) and one or multiple drives with a CANopen Option set to auto bit rate detection.
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Node ID Setup
The node ID can be set in drive parameter F6-35. The value range is 1 to 126. Each node ID
may only be used once in the network.
After changing F6-35, cycle the drive power supply to enable the changes.
Note: When the node is set to 0, the ERR light will flash and "AEr" will appear on the drive digital
operator to indicate that an address setting error has occurred.
YASKAWA ELECTRIC TOBP C730600 24D 1000-Series Option SI-S3/V, SI-S3/T Installation Manual
7 Bit Rate and Node ID Setup
27