Easy Start Guide
Page 9
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9. How to connect and configure a Potentiometer
for remote speed control
Parameter
Description
How to set
F203
Main frequency source X
Default is 0. Set to
to enable frequency setpoint via the AI1 (Analogue Input 1).
1
9.1 Parameters to change for remote Potentiometer speed control
This provides the benefit of allowing motor
speed to be controlled from a more convenient
location such as a cabinet door (if the AC10 is
cabinet-mounted) or on the machine itself.
If speed control via the integrated keypad is
unsuitable for the application, a remote
Potentiometer can be used instead.
The number of turns depends on the
application. A single turn Potentiometer is
available from The Inverter Drive Supermarket
at InverterDrive.com.
Any potentiometer rated from 2kOhm to
5kOhm can be used - eg.
.
4.7kOhm
The default output frequency at 0V is the
minimum frequency of the Inverter. To change
this, edit Parameter F112. The default output
frequency at 10V is 50Hz. To change this, edit
Parameter F111.
9.2 Connecting the Potentiometer
First, ensure the Voltage/Current Input switch
“J5" is set to “V” (Voltage). Then, set SW1 to
off/on (down/up) for 0-10V operation.
A wiring diagram is shown in the illustration
opposite. The most important connection at
the Potentiometer end is the centre terminal or
“wiper”. The wiper will output a variable voltage
between 0 and 10 Volts and should be
connected to the “AI1" terminal on the Inverter.
It is this voltage which provides the speed
signal with 0V being slowest and 10V fastest.
If the rotation of the Potentiometer is the
opposite to that required (ie. turn anti-
clockwise to increase speed instead of
clockwise) reverse connections GND and 10V.
Use shielded cable between Potentiometer
and Inverter and ensure that the cable screen
is connected to the Inverter earth terminal only.
2
1
3
Screened
Cable
Parker AC10 Series Inverter (to 22kW)
4.7kOhm
Potentiometer
[Order Code 31350]
Screen to
Earth Terminal
Voltage/Current
Input Switch “J5"
2
3
1
SW1
