Specifications

The current limit may be adjusted as follows:

A. Connect an AC RMS ammeter in series with one motor phase.

B. Set the CL Trimpot fully counterclockwise.

C. Adjust the speed setting to 30%.

D. Lock the motor shaft and adjust the CL Trimpot to 160% of the motor nameplate

rated current.

8 DRIVE OPERATION

8.1 START-UP PROCEDURE: After the drive has been properly setup (jumpers and

trimpots set to the desired positions) and wiring completed, the start-up procedure can

begin.

WARNING! MAKE SURE THAT THE POTENTIOMETER IS SET FULLY

COUNTERCLOCKWISE PRIOR TO APPLYING POWER. IF THIS IS NOT DONE, THE

MOTOR WILL RUN AT THE SPEED SETTING AT POWER UP. THIS MAY CAUSE BODILY

INJURY IF ONE IS IN CLOSE PROXIMITY OF MOVING PARTS.

To start the drive, set the On/Off AC Line Switch to the “ON” position. If the AC power

has been properly brought to the drive, the Pilot Light will illuminate. If the optional

Forward-Stop-Reverse Switch has been installed, set it to the “FWD” or “REV” position.

The motor will begin to accelerate to the set speed. The PC board mounted “ST” and

“OL” LED’s will indicate the drive status, as described in Section 9.3 and 9.4 on page 25.

8.2 RESTARTING THE DRIVE AFTER A FAULT HAS BEEN CLEARED: The drive

monitors four faults (Undervoltage, Overvoltage, Short Circuit (at the motor (phase-to-

phase)), and Overload). The PC board mounted “ST” and “OL” LED’s will indicate the

drive status, as described in Section 9.3 and Section 9.4, on page 25. Also see Section

6.3, on page 19, for Automatic or Manual Start and Reset selection with Jumper J3. In

addition, Section 10.2 on page 26.

WARNING! THE DRIVE WILL AUTOMATICALLY RESTART AFTER FAULT

HAS CLEARED. IF AN I

T OR SHORT CIRCUIT FAULT OCCURS, THE DRIVE MUST BE

RESTARTED BY SETTING THE ON/OFF AC LINE SWITCH TO THE “OFF” POSITION

FOR A MINIMUM OF 5 SECONDS.

8.2.1 Drive Set for Automatic Start and Reset (Factory Setting): The drive will

automatically restart after an Undervoltage or Overvoltage Fault has cleared. For

an I

t Fault, be sure the fault has been cleared before restarting the drive. Check

the motor current with an AC RMS responding ammeter. Also, the CL setting

may be set too low. See Section 7.6, on page 23. For an I

t or Short Circuit

Fault, the drive must be restarted by setting the On/Off AC Line Switch to the

“OFF” position for a minimum of 5 seconds.