Pulsafeeder MPC - Manual (Page 21)

To ensure proper operation, the MPC should remain powered at all times.
A dry contact input provides the MPC with motor status (on vs. off). See
Section 13 (Digital In #1 & Digital In #2)
Input Power must be run in separate conduit. Do not combine Power and
Control wires in a common conduit!
Field Wiring conductors shall be copper conductors only!
Figure 3 – AC Drive 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.