Johnson Controls VS3 Series User Manual

162
Appendix A—Description of parameters
VARIABLE SPEED DRIVE SERIES III LIT-12012999—June 2018 www.johnsoncontrols.com
Code Modbus ID Parameter Application RO/RW
P3.3.5 150 AO1 Scale 1,2,3 RW
This parameter will scale the analog output function from 10% to 1000%, in adjusting this value it will
either extend or shrink the scale on the analog signal from 0-10V/0-20mA or 2-10V/4-20mA.
Figure 54. Analog output scaling
20 mA
12 mA
10 mA
P4.3
P4.10 = 1
4 mA
0 mA
0 0.5 1.0
P4.5
P4.12 = 50%
Max. Value
of Signal
Selected
by P4.3
P4.10
P4.5
P4.12 = 200%
P4.5
P4.12 = 100%
P4.3
P4.10 = 0
Analog
Output
Current
P3.3.6 148 AO1 Inversion 1,2,3 RW
Use this parameter to invert the analog output signal, normally 0V/0mA/2V/4mA = 0% and
10V/20mA = 100%, when inverted 0V/0mA/2V/4mA = 100% and 10V/20mA = 0%:
Maximum output signal = Minimum set value.
Minimum output signal = Maximum set value.
Figure 55. Analog output invert
Analog Output Current
20 mA
12 mA
10 mA
4 mA
0 mA
P4.5
P4.12 = 50%
P4.5
P4.12 = 100%
Selected with
P4.3/P4.10
P4.5/P4.12
= 200%
00.5
1.0
P3.3.7 173 AO1 Offset 1,2,3 RW
This parameter is used to add a offset of –100.0 to 100.0% to the analog output minimum value to add in
an additional offset scale factor.
P3.4.1 228 AO2 Mode 1,2,3 RW
Use this parameter to select the analog output mode for AO2 as current or voltage. There are internal
relays to perform the switching of the signal between mA or V.
P3.4.2 229 AO2 Function 1,2,3 RW
Use this parameter to select the function or signal that is connected to the terminal AO2 terminal 24.
Scaling will very based on the signal selected. See ID 146 for options.
P3.4.3 232 AO2 Minimum 1,2,3 RW
Use this parameter to define the signal minimum to be either 0 mA or 4 mA (AO1 mode = 0–20 mA);
0V or 2V (AO1 mode = 0–10V).
0 = Set minimum value to 0V/0 mA.
1 = Set minimum value to 2V/4 mA.

Johnson Controls VS3 Series Specifications

General

Brand	Johnson Controls
Model	VS3 Series
Category	Inverter
Language	English