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50 FDUL/VFXR/FDUG/VFXG/AFR/AFG Main features CG Drives & Automation, 01-7318-01r1

7.20.1.2 Reset and Autoreset

operation

If the AFR/AFG drive is in Stop Mode due to a trip

condition, the AFR/AFG drive can be remotely reset by a

pulse (“low” to “high” transition) on the Reset input, default

on DigIn 8.

Depending on the selected control method, a restart takes

place as follows:

7.20.1.2.1 Level-control

If the Run inputs remain in their position the AFR/AFG

drive will start immediately after the Reset command is

given.

7.20.1.2.2 Edge-control

After the Reset command is given a new Run command

must be applied to start the AFR/AFG drive again.

Autoreset is enabled if the Reset input is continuously active.

The Autoreset functions are programmed in menu

“Autoreset [250]”.

7.20.1.3 Run Inputs Level-controlled

The inputs are set as default for level-control. This means

that an input is activated by making the input continuously

“High”. This method is commonly used if, for example,

PLCs are used to operate the AFR/AFG drive.

The examples given in this and the following paragraphs

follow the input selection shown in Fig. 47.

Fig. 47 Example of wiring for Run/Stop/Enable/Reset inputs

The Enable input must be continuously active in order to

accept any run-right or run-left command. If both RunR

and RunL inputs are active, then the AFR/AFG drive stops.

Fig. 48 gives an example of a possible sequence.

Fig. 48 Input and output status for level-control

7.20.1.4 Run Inputs Edge-controlled

Menu “[21A] Level/Edge” must be set to Edge to activate

edge control. This means that an input is activated by a

“low” to “high” transition or vice versa.

See Fig. 47. The Enable and Stop input must be active

continuously in order to accept any run-right or run-left

command. The last edge (RunR or RunL) is valid. Fig. 49

gives an example of a possible sequence.

Fig. 49 Input and output status for edge-control

NOTE: If the control commands are programmed for

Keyboard control or Com, Autoreset is not possible.

CAUTION!

Level-controlled inputs DO NOT comply with

the Machine Directive, if the inputs are

directly used to start and stop the machine.

Stop

Reset

+24 V

RunL

RunR

Enable

NOTE: Edge-controlled inputs comply with the

Machine Directive (see Chapter 8. page 51), if the

inputs are directly used for starting and stopping the

machine.

(06-F103new_1)

INPUTS

OUTPUT

STATUS

ENABLE

STOP

RUN R

RUN L

Right rotation

Left rotation

Standstill

(06-F94new_1)