WJ200 - Quick Start Guide for reference.
http://www.hitachi-america.us/supportingdocs/forbus/inverters/Support/NT3251X.pdf
I have finished mocking up the control box for my lathe. The controls I want to use are the following.
On/Off switch
FWD/REV switch.
Speed pot
Emergency Stop
Based on the default way the VFD is setup Intelligent Input 1 and 2 are for FWD RUN and REV RUN. I have these working just fine by connecting my switches directly to them.
I figure that since I want a ON OFF switch and a FWD REV switch that I will wire the ON OFF switch to disconnect the common ground and the FWD REV switch will determine which terminal 1 or 2 gets grounded.
If anyone sees any problem with this please let me know.
Now my question is this. The ON/OFF switch has an 24v LED. I want this to illuminate whenever the lathe is running.
My initial thoughts was to use the Intelligent output terminal 11 or 12 to illuminate the LED. However in my testing I don't get any voltage out of terminal 11 or 12 whenever the VFD is in RUN. Looking at the diagnostic settings it shows that terminal 11 and 12 are becoming active with RUN, but I don't get anything from it.
I'm totally new to this so I may just be incorrectly assuming this terminal does something it doesn't. The manual states the following ratings for terminal 11 and 12.
50mA max. ON state current,
27 VDC max. OFF state voltage
Common is CM2
So my assumption is that I should see some sort of voltage coming out of it between 11 or 12 and CM2, but I get nothing when its on or off.
I just had another thought that might be a more simple option. I could run the output from the on/off switch through the LED.
Thoughts?
http://www.hitachi-america.us/supportingdocs/forbus/inverters/Support/NT3251X.pdf
I have finished mocking up the control box for my lathe. The controls I want to use are the following.
On/Off switch
FWD/REV switch.
Speed pot
Emergency Stop
Based on the default way the VFD is setup Intelligent Input 1 and 2 are for FWD RUN and REV RUN. I have these working just fine by connecting my switches directly to them.
I figure that since I want a ON OFF switch and a FWD REV switch that I will wire the ON OFF switch to disconnect the common ground and the FWD REV switch will determine which terminal 1 or 2 gets grounded.
Code:
Something like this
Terminal 1 -> FWD --------\
|---> on/off ---> ground
Terminal 2 -> REV --------/
If anyone sees any problem with this please let me know.
Now my question is this. The ON/OFF switch has an 24v LED. I want this to illuminate whenever the lathe is running.
My initial thoughts was to use the Intelligent output terminal 11 or 12 to illuminate the LED. However in my testing I don't get any voltage out of terminal 11 or 12 whenever the VFD is in RUN. Looking at the diagnostic settings it shows that terminal 11 and 12 are becoming active with RUN, but I don't get anything from it.
I'm totally new to this so I may just be incorrectly assuming this terminal does something it doesn't. The manual states the following ratings for terminal 11 and 12.
50mA max. ON state current,
27 VDC max. OFF state voltage
Common is CM2
So my assumption is that I should see some sort of voltage coming out of it between 11 or 12 and CM2, but I get nothing when its on or off.
I just had another thought that might be a more simple option. I could run the output from the on/off switch through the LED.
Code:
Something like this
Terminal 1 -> FWD --------\
|---> on/off ---> LED --> ground
Terminal 2 -> REV --------/
Thoughts?