Continued), Table 2: terminal identification/function – GE Industrial Solutions AF-300C AC Drive User Manual

Page 43

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GEK-85718

TABLE 2: TERMINAL IDENTIFICATION/FUNCTION

(continued)

Terminal
Label

CONTACT

INPUT:

CM

AUT

FWD

REV

BX

Xl
x2

x3

RT2

THR

RST

Terminal

Name

Contact Input Corn.

Current Input Select

Forward Command
Input Terminal
Reverse Command
Input Terminal

Motor Coast-To-Stop
Input Terminal

Multi-Step Frequency

Setting Terminals

Increase/Decrease
Frequency Control

Momentary START/
STOP Contact
Selection

Multi-Step

Time Command

Input Terminals

External Thermal
External Braking

Resistor Thermostat
Terminal

Reset Signal Input
Terminal

Function

Common terminal of contact input signals.

When the frequency setting signal is provided with voltage or
current, this changes over the input signal to be used.
AUT-CM On = Selects current input (4 to 20
AUT-CM Off = Selects voltage input and frequency setting input,

Forward command via FWD-CM (closed). Reverse command via
REV-CM (closed). When FWD-CM is closed and REV-CM is closed
at the same time, the inverter will decelerate and stop (only when
Function Code 41 is set inactive).

Motor will coast-to-stop with BX-CM (closed). No alarm signal will be
output. If BX-CM is opened while FWD or REV closed , the inverter

will start to operate because a RUN command is present.

Eight

frequency settings can be made with the

combinations of ON and OFF of each terminal.

By changing Function Code 42 to YES, the

and X2 terminals are

changed from multi-step speed commands to increase and
decrease commands. The increase and decrease commands
simulate a motorized speed pot.
By changing

Code 41 to YES, the X3 terminal is changed

from a multi-step speed command to a momentary pushbutton

common input for momentary START/STOP commands. With X3-

CM closed, FWD and REV signals input by a pulse signal (pulse

width of 50

or greater) can be self-sealed.

(closed),

(closed),

(closed) are the

second, third, and fourth types of acceleration/deceleration time
selections. NOTE: When there is no input to

operation is

by normal first acceleration/deceleration time.

With THR-CM open, OH2 trip will occur and motor will coast-to-stop.
NOTE: With no external thermal relay or external braking resistor
thermostat, the THR-CM terminals must be

or the inverter

not operate.

Faults are reset when a momentary contact is made between the

RST-CM terminals for more than 0.1 seconds.
NOTE: If there is an input to the

or REV terminals, the unit

not RESET.

4-11

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