Parker Products COMPAX-M /-S (L) manual Output of variable voltage, Service D/A monitor channels

POSA

POSR

Operating Instructions	COMPAX-M / -S
Output of variable voltage
8.4.36 Output of variable voltage

The direct output of variable voltage is supported via the D/A monitor channels 0 to 3.

SPEED

ACCEL

OUTPUT

Password

SPEED

SYNC

Mark reference

POSR

SPEED

POSR

OUTPUT

Cam controller

WAIT

GOTO

GOSUB

RETURN

END

REPEAT

IF I..

Comparison

WAIT Start

GOTO /

GOSUB EXT

IF Error/ Stop

Arithmetic

Position monitoring

Idle display

Speed monitoring

Engage / disengage brake / final stage

Variable

voltage

Service D/A monitor (channels

2 & 3):

Value before decimal point:

Value after decimal point:

Characteristic curve:

Option D/A monitor (channels

0 & 1):

Calculating the output value:

Characteristic curve:

Addressable using parameters P76 (channel 2) and P77 (channel 3)
P76 Channel 2	X11/4
P77 Channel 3	X11/5
Resolution: 8 bit (incl. sign); corresponds to a resolution of 80 mV
Range: -10V...+10V
The calculation for output on the 8 bit channels 2 & 3 is as follows:
Parameter setting for required voltage U (-10V ... +10V)
P76 (P77) = 39 + Y (39,Y)
39: selection of voltage output

For positive voltage:	Y = U	*	0.0101067	/ 10V
For negative voltage:	Y = U	*	0.0101067	/ 10V + 0.0202134

(Note: set U negative in the 2nd formula)

+9.96V

0.0101067 0.0202134

-10.0V

Addressable using P71 (channel 0) and P72 (channel 1)

P71 Channel 0 X17/1

P72 Channel 1 X17/2

Resolution: 12 bit (incl. sign); corresponds to a resolution of 5 mV

Range: -10V...+10V

The calculation for the output on the 12-bit channels 0 and 1 is as follows: Parameter setting for required voltage U (-10V ... +10V)

P71 (P72) = Y

P73 (P74) = 39: selection of voltage output

Y = U * 101067 / 10V

+10.0V

-0.0101067

0.010106

-10.0V

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