VFD control help

[Lee Alkureishi]

Hi all,

well, I bought myself a PM90 :)

I'm in the process of fixing her up, and will post more details once she's all nice and shiny :)

Meantime, I installed a VFD and am now trying to set up the remote controls.

Can anyone tell me how to wire an SPDT toggle switch for forward/reverse? All the instructions I've seen have shown for an ON-OFF-ON switch, but mine is just LEFT-RIGHT. I'd like to keep it separate from the ON-OFF button if possible.

The VFD is a huanyang 1.5kw, and the switch is a SPDT toggle switch. There are 3 connections on the back, but no wiring diagram came with it.

I tried connecting the leftmost connection to FOR, rightmost connection to REV, and the middle connection to DCM (top row). The switch doesn't do anything. I then tried the middle connection to DCM (bottom row), again nothing. Then, I tried the middle connection to +24V. Again, nothing.

I set pd023 to 1 (allow reverse). When I press the jog button on the front of the VFD, I can make it go in reverse no problem.

What am I missing?

Thanks,

Lee

[Walter Hickman]

Did you set PD001 to 1 for external control?

2. RUN, DCM, F/R can be used for Start, Stop and switching of FOR/REV:

①
Select FOR and REV

②
Parameter setting:

PD001=1 for external control

PD044=01 for RUN function

FOR

REV

RST

DCM

STOP RUN

FOR

REV

DCM

K
1

K
2

PD045=05 for switching of F/R

When K2 is opened it rotates forward, while K2 is closed it rotates reverse

[Lee Alkureishi]

Thanks,

I got it working - swapped it for an on-off-on switch, and set pd044 to 1, bingo.

Thanks for your help