GE Industrial Solutions AF-650 GP General Purpose Drive Programming Guide User Manual

Page 44

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Digital input function

Select

Terminal

Counter B (up)

[63]

29, 33

Counter B (down)

[64]

29, 33

Reset Counter B

[65]

All

Mech. Brake Feedb.

[70]

All

Mech. Brake Feedb. Inv.

[71]

All

PTC Card 1

[80]

All

Table 3.6

AF-650 GP standard terminals are 18, 19, 27, 29, 32 and 33. OPCGPIO General Purpose I/O Option Module terminals are
X30/2, X30/3 and X30/4.

Functions dedicated to only one digital input are stated in the associated parameter.

All digital inputs can be programmed to these functions:

[0]

No

operation

No reaction to signals transmitted to the

terminal.

[1]

Reset

Resets frequency converter after a TRIP/

ALARM. Not all alarms can be reset.

[2]

Coast

inverse

Coasting stop, inverted input (NC). The

frequency converter leaves the motor in free

mode. Logic ‘0’ => coasting stop.

[3]

Coast and

reset inverse

Reset and coasting stop Inverted input (NC).

Leaves motor in free mode and resets

frequency converter. Logic ‘0’ => coasting

stop and reset.

[4]

Quick stop

inverse

Inverted input (NC). Generates a stop in

accordance with quick-stop ramp time set in

C-23 Quick Stop Decel Time. When motor

stops, the shaft is in free mode. Logic ‘0’ =>

Quick-stop.

[5]

DC-brake

inverse

Inverted input for DC braking (NC). Stops

motor by energizing it with a DC current for

a certain time period. See B-01 DC Brake

Current to B-03 DC Brake Cut In Speed [RPM].

The function is only active when the value in

B-02 DC Braking Time is different from 0.

Logic ’0’ => DC braking.

[6]

Stop inverse

Stop Inverted function. Generates a stop

function when the selected terminal goes

from logical level ‘1’ to ‘0’. The stop is

performed according to the selected ramp

time (F-08 Decel Time 1, E-11 Decel Time 2,

E-13 Decel Time 3, E-15 Decel Time 4).

NOTE

When the frequency converter is at the
torque limit and has received a stop
command, it may not stop by itself. To
ensure that the frequency converter
stops, configure a digital output to [27]
Torque limit & stop
and connect this
digital output to a digital input that is
configured as coast.

[8]

Start

(Default Digital input 18): Select start for a

start/stop command. Logic ‘1’ = start, logic ‘0’

= stop.

[9]

Latched

start

The motor starts, if a pulse is applied for min.

2 ms. The motor stops when Stop inverse is

activated.

[10] Reversing

(Default Digital input 19). Change the

direction of motor shaft rotation. Select Logic

‘1’ to reverse. The reversing signal only

changes the direction of rotation. It does not

activate the start function. Select both

directions in H-08 Reverse Lock. The function

is not active in process closed loop.

[11] Start

reversing

Used for start/stop and for reversing on the

same wire. Signals on start are not allowed at

the same time.

[12] Enable start

forward

Disengages the counterclockwise movement

and allows for the clockwise direction.

[13] Enable start

reverse

Disengages the clockwise movement and

allows for the counterclockwise direction.

[14] Jog

(Default Digital input 29): Use to activate jog

speed. See C-20 Jog Speed [Hz].

[15] Preset

reference on

Shifts between external reference and preset

reference. It is assumed that [1] External/preset

has been selected in F-54 Reference Function.

Logic '0' = external reference active; logic '1'

= one of the eight preset references is active.

[16] Preset ref bit

0

Preset ref. bit 0,1, and 2 enables a choice

between one of the eight preset references

according to the table below.

[17] Preset ref bit

1

Same as Preset ref bit 0 [16].

[18] Preset ref bit

2

Same as Preset ref bit 0 [16].

Parameter Descriptions

AF-650 GP Programming Guide

DET-618C

43

3

3

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