Mitsubishi D700 SC on AXBB-E help

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Mitsubishi D700 SC on AXBB-E help

Postby X-Pam » Tue Aug 10, 2021 5:56 am

Hello everyone,
on D700 inverter I'm triyng to set frequency by analog input generated by AXBB-E (AO1) but I can't and I don't understand why, hope someone can help me.

Actually I connected the devices in this way:
    D700
    1 - Terminal 2 (0-5v)
    2 - STF (FOR)
    3 - Terminal 5
    4 - S1
    5 - S2

    AXBB-E
    1 - AO1
    2 - Port 1 PIN 04 (with relay)
    3 - 5v0
    4 - Port 1 PIN 02
    5 - Port 1 PIN 03

Image

Well, AXBB-E is sending signal, I can see that on UCCNC and I measured it with oscilloscope and multimeter but no speed change on inverter.
On D700 I guess I did all the configurations for EXT function, setting the right voltage (0-5v) and other fields.
I also tried Terminal 4 (changing the value) instead Terminal 2 but it doesn't work.
There is probably something wrong in what I'm doing.

Here it's possible to find the D700 user manual:
https://alusonic.com/varie/FR-D700SEN.pdf

Thanks for the help guys!
X-Pam
 
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Re: Mitsubishi D700 SC on AXBB-E help

Postby cncdrive » Tue Aug 10, 2021 6:40 pm

Are you getting the FOR signal also? That is the start signal for the inverter, so you need an analog Voltage and also the FOR signal to be active, so check the FOR signal also with a multimeter.

And make sure to set the speed reference signal in the inverter to analog input voltage and also to set the start signal to the external FOR terminal.
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Re: Mitsubishi D700 SC on AXBB-E help

Postby X-Pam » Wed Aug 11, 2021 7:58 am

Thanks for the reply.
FOR signal is ok, connected to the STF (FOR) of the inverter and the Port 1 Pin 04 of the AXBB-E with a relay, when I start/stop the machine it works very well.
All parameters on the inverter seems to be ok concerning routing and input voltage from external (setting 0-5v), I've noticed that AXBB-E are actually sending about 8-9v on AO1 instead the 5v maximum set by default.
I now about the AXBB-E internal jumper but I've not touched it, is it factory set to 5v or 10v?
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Re: Mitsubishi D700 SC on AXBB-E help

Postby cncdrive » Wed Aug 11, 2021 6:05 pm

It is factory set to 0-10Volts. You have to change the jumper inside for 0-5Volts.
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