INSTALLATION
INITIAL IMHSS03 DIPSWITCH SETTINGS
I-E96-322A
3 - 5
for the location of S1 on the HSS module. Record the I/O
expander bus address in the user setting column.
Dipswitch S2 - Demodulator Gain
Dipswitch S2 is an eight-pole dipswitch that sets the demodu-
lator gain. This dipswitch is ignored if the module is configured
with function code 55. Set the demodulator gain to a value of
two.
The demodulator gain amplifies the feedback signal so that the
peak-to-peak span of the LVDT feedback signal is as close as
possible to the full range of the 16-bit resolution analog-to-dig-
ital (A/D) converter. If the module is configured to operate as
an IMHSS02 module using function code 150, this dipswitch
must have an initial setting for manual LVDT calibration. Refer
Table 3-1. Dipswitch S1, I/O Expander Bus Address
Example Settings
Example
Address
Dipswitch Pole
(Binary Value)
User
Setting
1
(128)
2
(64)
3
(32)
4
(16)
5
(8)
6
(4)
7
(2)
8
(1)
15
0
0
0
0
1
1
1
1
32
0
0
1
0
0
0
0
0
63
0
0
1
1
1
1
1
1
NOTE: 0 = CLOSED or ON, 1 = OPEN or OFF.
Figure 3-1. IMHSS03 Circuit Board Layout
P3
P1
TP25412A
P2
EXPANDER BUS ADDRESS
DEMODULATOR GAIN
S1
S3
S4
S2
S5
DITHER OSCILLATOR FREQUENCY AND AMPLITUDE,
AND LVDT OSCILLATOR AMPLITUDE AND SELECT
LVDT OSCILLATOR FREQUENCY
RED/GREEN
STATUS LED
CONTROLLER GAIN
1 2 3 4 5 6 7 8
OPEN
1 2
1 2 3 4 5 6 7 8
OPEN
1
2
3
4
5
6
7
8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
OPEN
OPEN
J25
J24
J23
J22
J21
J20
J19
J9
J8
J18
J17
J16
J15
J14
J13
J12
J11
J10
J7
J31
J31
J27 J29
J3
J5
J6
J1
J4
J26
J28
J30
J2
