Start Up
4 Start Up
1.Input power to the unit must be OFF and locked out per OSHA requirements. Do not rely on panel disconnect switches.
WARNING
HAZARDOUS VOLTAGE!
if input and output connections have been connected improperly, there is potential for high voltage on these terminals. If power leads for multiple motors are improperly run in same conduit, there is potential for leakage current to charge capacitors within the panel, even when disconnected from line input. For initial start up, make no assumptions about power components. Follow
2.Use AC voltmeter to verify there is no voltage on input terminals L1, L2, and L3,
3.Use ohmmeter to confirm continuity of the motor by measuring
4.Use ohmmeter to confirm open on input by measuring
5.Inspect the panel for loose connections on terminals.
6.CheckTable 3.9 and Table 3.10 for proper ground wire: panel to main building distribution ground, and panel to motor ground.
7.Confirm control connections terminated per connection diagrams supplied with the equipment.
8.Check for external devices between drive panel output and motor. It is recommended that no devices be installed between the motor and drive.
9.Record motor nameplate data; hp, voltage, full load amps (FLA), and RPM. It will be needed to match motor and drive later on.
10.Confirm that incoming power voltage matches drive label voltage and motor nameplate voltage.
11.For multiple winding motors, the motor must be wired on run winding, not start winding.
12.Confirm motor FLA is equal to or less than maximum panel output current. Some motors have higher than normal NEMA currents.
13.Check that the overload relay is set for FLA of connected motor. Service factor is built into overload relay. Relay trips at 120% of setting.
14.For drive start up procedures, see drive instruction manual.