Measurement Technology NW
LCI-90 Operator Manual
Page 41
6.3
Analog Input Configuration
The various analog input options are configured through menu
4.1 ANALOG INPUT
CONFIG
, shown below. A description of each item in this menu is given below:
4.1 ANALOG INPUT CONFIG
>
1
CHANNEL NO.
1
2
INPUT RANGE
0 – 5 V
3
INPUT VAR.
TENSION
4
MULT. INPUTS
NONE
5
INPUT CHECK
ON
6
LOWER LIMIT
0.050 V
7
UPPER LIMIT
4.950 V
Item 1 Selects the channel number, 1-4, that the settings apply to. The channels corres-
pond to specific modules and terminal blocks on the back of the LCI-90:
Channel
No Module Used
Module Used
AI – 1
TB1 1+/1–
TB6 - MOD1: V+ S+ / V– S–
AI – 2
TB1 2+/2–
TB6 - MOD2: V+ S+ / V– S–
AI – 3
TB1 3+/3–
TB6 - MOD3: V+ S+ / V– S–
AI – 4
TB1 4+/4–
TB6 - MOD4: V+ S+ / V– S–
Figure 6.1 – Analog Input Module Locations and Menu Names
Item 2 Selects the input range for the channel in Item 1. The choices are 4-20 mA, 0-5V,
0-10V and –10 to +10V. Note the DIP switch settings in Appendix B section 10.
Item 3 Assigns the analog input channel to a line variable. The choices for the standard
LCI-90 are NONE and TENSION; consul the factory for other options. Items 4-7
are disabled when NONE is selected.
Item 4 The LCI-90 can combine the input from several sensors. The choices here are
NONE, SUM or 2-AXIS. Use of multiple sensors is discussed in Section 6.3.1.
Item 5 Selects whether input from this channel is monitored for out-of-range values or not.
This is a unique feature of the LCI-90 – see Section 6.3.2 for details.
Item 6 Selects the lower limit for sensor input, below which an "input check" error will
occur. See Section 6.3.2 for details.
Item 7 Selects the upper limit for sensor input, above which an "input check" error will
occur. See Section 6.3.2 for details.
