Solar Drive External Potentiometer Setup
This setup is for a EM12 SP Drive or EM15 SP Drive with Single Line keypad, for EM15 SP Drive with Double Line keypad, please use same setup as for VSDs as listed HERE.
Instead of using the Potentiometer on the drive Keypad, an external Potentiometer can also be used for speed control (which can then be installed at an alternate location). This can be done by connecting the External Potentiometer to the Drive Control Terminals as follows (for a 3-Wire Potentiometer):
- Connect the Power Pins of the Potentiometer (usually the outside 2 connection points) to the +10V and GND terminals on the Drive (Swop connections for Clockwise vs Anti-Clockwise Operation).
- Connect the Output/Signal Pin of the Potentiometer to AI1 (usually the centre connection point). Please note that the AI1 jumper on the control board needs to be set to use 0~10V (which is the default). When using AI2 or AI3 the jumper needs to be set accordingly.
- Set F0-03 = 2 (to use AI1 as speed reference point)
Potentiometer Wiring
*Please Note:
- Swopping the Voltage and Ground wires on the Potentiometer will change the Acceleration/Deceleration direction (Clockwise vs Anti-Clockwise).
- Only use Potentiometers with a resistance range of 1 kΩ~5kΩ.
- Please use shielded cable to prevent electromagnetic interference by other appliances on the analog signal sent to the VSD. For EMC Mitigation: 1) Allow for at least 20cm distance between communication cables and motor wires. 2) Do not use the same cable tray. 3) Insert wires in metal pipes if possible.
