Troubleshooting guide

9
5.3.3 Power Wiring Diagram
MPC Drive Terminal 120 V operation 240 V operation
L1 Line Line
L2 / N Neutral Line
Earth Ground Ground
Table 2 – AC Drive Terminals
EARTH GROUND
LINE2 / NEUTRAL
LINE1
PE
L2/NL1
Figure 3 – AC Power Connections
Wait a minimum of 3 minutes after disconnecting power before servicing the MPC or pump motor.
Capacitors retain a charge even after power is removed from the controller.
Find the proper AC input
voltage for your MPC
controller on the nameplate
at the rear of the unit. MPC
input is always single phase,
and can be either 115 VAC
or 230 VAC, determined at
time of order.