Provide support for Yasakawa V1000 VFD

[DougCoffland]

A potential customer sent me his Yasakawa V1000 VFD and I have it running.

Connections:

• Connect RS485A from the BB Controller to R+ on the VFD
• Connect RS485B from the BB Controller to R- on the VFD
• Jump R+ to S+ on the VFD
• Jump R- to S- on the VFD
• turn the switch next the terminals to the 'ON' position to show that this is the last device on the Modbus.

Here are two screen shots of the Custom VFD configuration page on the BB Controller

Here are a couple of points that are required to get it going correctly.

• You must check the Multi-write checkbox. This VFD does not support single address write commands.
• You must use the Max-Freq-Fixed command because there does not seem to be a way to read it from the VFD via the Modbus link. The value for the Maximum Frequency can be read from register E1-06 on the VFD. The value should be the maximum frequency in units of 0.01Hz. That's 30000 in this case for 300Hz.
• The max-spin value should be the E1-06 value converted to RPM. (18000) in this case.
• E01-6, max-spin, and the max-freq-fixed value should all be set based on the capabilities of the spindle and the VFD.

Here are the register settings in the VFD:

• H5-01 1 (Modbus address 1)

• H5-02 2 (9600 baud)

• H5-03 0 (no parity)

• H5-04 3 (ignore communication errors)

• H5-05 0 (communication fault detection ignored)

• H5-12 0 (bit zero of address 0001H starts and stops the drive in the forward direction and bit 1 starts and stops in reverse)

• B1-01 2 (Modbus interface controls speed)

• B1-02 2 (Modbus starts and stops spindle)

• You may also want to disable the local/remote button on the front panel by setting B1-07 to 1. If it is not disabled, you can press that button for local control and this disables the Modbus control.

** Note - the manual leads you to access the registers from the 'STUP' option on the VFD front panel, but this option does not allow access to the H5 registers. You have to use the 'Par' option instead.

Finally, here is a link to the Yasakawa V1000 Manual https://www.yaskawa.com/delegate/getAttachment?documentId=SIEPC71060618&cmd=documents&documentName=SIEPC71060618.pdf