Note: The run command and the frequency reference can be supplied to the drive using various sources that include the operator, the control circuit terminals, option cards, serial

communications, and Pulse Train input. The settings required by the drive to accept each one of these input sources can vary. Be sure to read the directions carefully and make

the all appropriate settings.

No.

Name

b1-02

Run Command Selection 1

Detailed Description

Available selections for b1-02 include:

Setting

Operator: RUN and STOP keys on the LED or LCD operator

Terminals: Contact closure on terminals S1 or S2

Serial Communications: Modbus RS-422/485 terminals R+, R-, S+ and S-

Option PCB

0: Operator

To use the operator to control the drive, press

motor.

Turn on the power to the drive. The initial display appears.

Set the frequency reference to F6.00 (6 Hz).

RUN

Press the

key to start the motor. The RUN indicator LED will light and the motor will begin rotating at

6 Hz..

Press the

key to stop the motor. The RUN light will flash until the motor comes to a complete stop.

1: Control Circuit Terminal

To issue the run command from the terminals, set b1-02 to "1" and select between 2-wire and 3-wire control operation. The default setting is for 2-wire

control.

2-Wire Control

The drive is defaulted for 2-wire operation. In the 2-wire configuration, a closure between S1 and SN is interpreted as a forward run command by the

drive. A closure between S2 and SN is interpreted as a reverse run command. If both S1 and S2 are closed, the drive will stop (decelerate to zero speed)

and the digital operator will display an external fault alarm ("EF" flashes).

Control Circuit Terminal

3-Wire Control

When any of the multi-function digital input parameters (H1-01 through H1-05) are set to 0, terminals S1 and S2 become run and stop, respectively. The

multi-function digital input that was set to 0 will function as a forward/reverse input for the drive. When the forward/reverse input is open the drive will

run in the forward direction and when the input is closed, the drive will run in reverse.

In 3-wire operation, a momentary closure (> 50 ms) of S1 will cause the drive to run provided that S2 is held closed. The drive will stop any time the S2-

SN connection is broken. If the 3-wire configuration is implemented via a 3-wire initialization (A1-03= 3330), then terminal S3 becomes the forward/

reverse input.

112

Selects the run command input source.

0: Operator - RUN and STOP keys on the digital operator.

1: Terminals - Contact closure on terminals S1 or S2.

2: Serial Com - Modbus RS-422/485 terminals R+, R-, S+ and S-.

3: Option PCB.

or set b1-02 to "0". This puts the drive in LOCAL mode. In this setting, use the

Forward Run

Reverse Run

Figure 5.4 2-Wire Control