· Limit switches are used to ‘advise’ the dust collector controller that a gate is open.
· The limit switches operate on extra low voltage and hence do not require an electrician to connect.
· ABG use the NORMALLY CLOSED function of the limit switch. Do not use the NORMALLY OPEN function.
Inside the limit switch
The normally closed contacts
Connect the other end of the speaker cable to the terminals on top of the DUST COLLECTOR TIMER (VFD Option). Orientation doesn’t matter. The cable can connect either way.
For a general purpose DUST COLLECTOR TIMER/REMOTE, the limit switch cable is connected to the small connector attached to the metal 2 pin plug.
DUST COLLECTOR TIMER
DUST COLLECTOR TIMER/REMOTE
All connections for the DUST COLLECTOR TIMER (VFD Option) and VFD REMOTE CONTROL are extra low voltage and do not require an electrician.
The DUST COLLECTOR TIMER (VFD Option) uses a low voltage supply from the VFD to operate.
The 4 wires from the DUST COLLECTOR TIMER are connected to the VFD control terminal strip.
Most VFDs are fairly similar but these instructions are for Powtran VFDs in particular. If you have a different make of VFD and are uncertain of the connections please contact Auto Blast Gates for assistance.
DUST COLLECTOR TIMER
DUST COLLECTOR TIMER (VFD Option) Wires
Unplug the VFD from the power and wait until the display goes blank.
Take the bottom cover off the VFD so you can see the green terminal board and look for the terminals labelled DI1, +24V and COM (indicated in the drawings to the right).
Wiring (For PI9000 and PI500 VFD)
Dust Collector Timer
The red wire is connected to the terminal labelled +24V. The black wire is connected to the indicated terminal labelled COM.
The white wire is connected to the terminal labelled DI1and the blue wire is connected to the COM terminal with the black wire.
Connect the two wires to the terminals marked DI1 and COM. Doesn’t matter which wire goes to which terminal. Either way is fine
Connections for VFD
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