Bardac PLX - Pin 2 6 0; Pin 3 0 5; Pin 3 0 6

To Next Page

To Previous Page

CONFIGURA TION 175

13.3.1.2.1 4-20mA loop input SETUP

When using 4-20mA loop signals all that is required is to fit an external

burden resistor of 220 Ohms between the input and 0 V. The resulting

voltage signal generated by passing the signal current through the burden

will be + 0.88 V for 4 mA (represents 0 %) and 4.4V for 20m A (represents

100%). Using the appropriate UIPX SETUP block, select the follo wing :-

5V range (Max voltage generated by loop across burden = 4.4V)

-8.8% offset (4m A gives 0.88V). (offset is al ways + /-100% = + /-10V)

1.420 scaling factor ((4.4 – 0.88) X 1.420 = 5V i.e 100%)

For burden resistors of other values, the range, offset and scale will differ

accordingly.

13.3.1.3 UIPX SETUP / UIP(2) to (9) Linear scaling ratio PIN 3(2)2 to 3(9)2

Note. This does not affect the signal used for the digital threshold comparison. This scaling factor may be

used to introduce an inversion by selecting a negative number. A scaling factor of 1.0000 is equivalent to

100.00 %. In this case the full range of the input as selected in the range selection windo w will be equivalent

to a 100.00 % signal. E. g. With the 30 V range selected and a scaling factor of 1.0000, then a signal of 30V

would represent a demand of 100.00 % speed.

13.3.1.4 UIPX SETUP / UIP(2) to (9) Maximum clamp level PIN 3(2)3 to 3(9)3

13.3.1.5 UIPX SETUP / UIP(2) to (9) Minimum clamp level PIN 3(2)4 to 3(9)4

UIP

UIP2 (T 2) SETUP 4

322)UIP2 C AL RATIO

1.0000

PARA METER RANGE DEF AULT PIN

UIP2 C AL RATIO + /- 3.0000 1.0000 322

Allo ws linear scaling of the

signal on the UIPX input.

UIP2 (T 2) SETUP 4

323)UIP2 M A X CLA MP

+ 100.00 %

PARA METER RA NGE DEF AULT PIN

UIP2 M A X CLA MP + /- 300.00% + 10 0.00 % 32 3

Sets an upper clamp level for

the scaled linear input signal.

UIP2 (T 2) SETUP 4

324)UIP2 MIN CLAMP

-100.00%

PARA METER RA NGE DEF AULT PIN

UIP2 MIN CLA MP + /- 300.00% -100.0 0 % 324

Sets a lower clamp level for the

scaled linear input signal.