Easy Start Guide
Page 13
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13. How to configure “3-Wire” control with Run/Stop
pushbuttons and Forward/Reverse selection
The parameters described in Section 5 enable
Run/Stop operation via the red and green
buttons on the Inverter.
If this is unsuitable for the application, remote
switches can be used instead.
This section explains how to enable 3-wire
control with Run and Stop via pushbuttons and
Forward/Reverse via a selector switch.
Ensure the Inverter is in “Remote” mode
before continuing.
Parameter
Description
How to set
P000
Parameter Access
Set to
to allow parameters to be changed
5
P230
Remote Command Selection
Set to
to use the Inverter terminals (as opposed to keypad)
1
P263
Digital input 1 (T1) function
Set to
for 3-wire control “Start” on T1 (ignore E24 error, will clear when P264 is set)
14
P264
Digital input 2 (T2) function
Set to
for 3-wire control “Stop” on T2
14
P265
Digital input 3 (T3) function
Set to 1 for reset on T3 (or set to 1, 3, 6, 11, 12, 13 or 15 as required but no other values)
0
P266
Digital input 4 (T4) function
Set to
for forward/reverse selection on T4
0
13.1 Parameters to change for remote 3-wire control
13.2 Connecting the Switches
A wiring diagram is shown in the illustration
opposite.
For “Run” and “Stop”, two suitable
pushbuttons should be installed. The “Run”
pushbutton should include a Normally Open
contact between terminals 5 (COM) and 1
(DI1) and the “Stop” a Normally Closed contact
between terminals 5 (COM) and 2 (DI2).
For “Forward/Reverse” a suitable 2 position
NO (
) switch should be installed
between terminals 5 (COM) and 4 (DI4).
A momentary connection between 5 (COM)
and 1 (DI1) will start the motor. It will continue
to run until the connection between 5 (COM)
and 2 (DI2) is broken.
Terminal 5 (COM) is a common
connection for terminals 1-4, 6 and 8 and has
no other function.
Normally Open
Note that the Forward/Reverse switch only
selects the direction of rotation - it will not start
or stop the motor. If the application only
requires the motor to turn in one direction, the
Forward/Reverse switch can be omitted.
1
2
1
4
Pushbutton
Normally Open
“Run”
R
Pushbutton
Normally Closed
“Stop”
Switch, 2 Position
Normally Open
“Forward / Reverse”
1
3
WEG CFW-08 Series Inverter
1 2 3 4 5 6 7 8 9 10 11 12
COM
DI1 DI2
DI4
1
4
3
2