Curtis Instruments 1351 User Manual

3 — PROGRAMMABLE PARAMETERS
Curtis Model 1351 – December 2018
Return to TOC
pg. 44
Analog Inputs
e 1351 System Controller processes each of the analog input channels and makes the value available
to VCL. e parameter sets for each analog input are the same—although Analog 1-4 have a lower
input voltage limit. e analog inputs share the same set of parameters and monitor variables,
distinguished by their individual switch number as illustrated in the switches table (below). eir
usages vary as illustrated in the Figure 4 wiring diagram and as described in the (shared) Virtual
Switch parameter settings, above.
INPUTS — ANALOG INPUTS
PARAMETER ALLOWABLE RANGE DEFAULT DESCRIPTION
Analog 1 through 4: X = Analog Input Number which is part of the VCL parameters’ name
Value
Analog_X_Volts
Variable’s CAN Index by Analog Input:
1 = 0x3300 0x00
2 = 0x3301 0x00
3 = 0x3302 0x00
4 = 0x3303 0x00
0.0 – 5.0 V
0 – 50
Read Only The analog voltage at the specic analog input (See Figure 4)
Analog Inputs 1 – 4 are limited to the 5V input.
These inputs are also used as the encoder signals.
X = 1, 2, 3, or 4 for the Analog Inputs 1-4: Analog_X_Volts
VSW Status
Virtual_Switch_X
Variable’s CAN Index by Analog Input:
1 = 0x3380 0x00
2 = 0x3381 0x00
3 = 0x3382 0x00
4 = 0x3383 0x00
0 – 1
0 – 1
Read Only Virtual Switch 1 (pin 1) status:
0 = Off
1 = On
X = 1, 2, 3, or 4 for the Analog Inputs 1-4: Virtual_Switch_X
Filter Time Constant
Analog_Input_X_Filter_TC
Parameter’s CAN Index by Analog
Input:
1 = 0x3030 0x00
2 = 0x3031 0x00
3 = 0x3032 0x00
4 = 0x3383 0x00
4 – 3000 ms
4 – 3000
8 ms
8
Time to 63% of the full voltage range.
X = 1, 2, 3, or 4 for the Analog Inputs 1-4:
Analog_Input_X_Filter_TC
High Threshold
Analog_Input_X_High_Threshold
Parameter’s CAN Index by Analog
Input:
1 = 0x3020 0x00
2 = 0x3021 0x00
3 = 0x3022 0x00
4 = 0x3023 0x00
0.0 – 20.0 V
0 – 2000
3.0 V
300
For usage of the Virtual Switch input threshold.
Voltages above this ‘set point’ are processed as = On
Note: These input pins can also be used as the encoder
(ENC) signals.
X = 1, 2, 3, or 4 for the Analog Inputs 1-4:
Analog_Input_X_High_Threshold
Low Threshold
Analog_Input_X_Low_Threshold
Parameter’s CAN Index by Analog
Input:
1 = 0x3010 0x00
2 = 0x3011 0x00
3 = 0x3012 0x00
4 = 0x3013 0x00
0.0 – 20.0 V
0 – 2000
1.0 V
100
For usage of the Virtual Switch input threshold.
Voltages below this ‘set point” are processed as = Off
Note: These input pins can also be used as the encoder
(ENC) signals.
X = 1, 2, 3, or 4 for the Analog Inputs 1-4:
Analog_Input_X_Low_Threshold

Curtis Instruments 1351 Specifications

General

Brand	Curtis Instruments
Model	1351
Category	I/O Systems
Language	English