INSTALLATION
SLAVE MODULE INSTALLATION
I-E96-315B
3 - 7
Switch S6 - Demodulator Gain
Switch S6 is an eight position switch that sets the demodulator
gain. The demodulator gain amplifies the feedback signal so
that the peak to peak span of the feedback signal is the full
range of the 16 bit resolution analog-to-digital converter (ADC).
The calibration procedure in Section 4 explains how to set the
demodulator gain to operate over the range of ADC resolution.
Refer to Table
for switch settings. To initially set the
demodulator gain for installation, close pole 8 on S6 (gain of 2).
Switch S7 - LVDT Oscillator Frequency
Switch S7 is a two position switch that sets the linear variable
differential transformer primary excitation voltage frequency.
Set the LVDT oscillator frequency to the frequency specified by
the manufacturer. To set the LVDT oscillator frequency:
1. Refer to the LVDT specifications for the recommended
LVDT primary excitation voltage frequency.
2. Refer to Table
for switch settings and set S7 so that the
LVDT oscillator meets the manufacturers specifications.
SLAVE MODULE INSTALLATION
To install the slave module in the module mounting unit:
1. Locate the module mounting unit slot assignment for the
module.
Table 3-6. S6 Demodulator Gains
Close Switch
For a Gain of
User Setting
1
150
2
100
3
75
4
49
5
20
6
10
7
5
8
2
NOTE: To select the Gain close the corresponding switch position. All
other switches should be OPEN. For example: For a gain of 100, close
switch position 2 and all others remain OPEN.
1 = Open (off), 0 = Closed (on)
