Spectrum Controls 1746sc-INI4vi User Manual
Page 54
50
SLC 500
™
Isolated Analog Input Modules
2. Let the operating temperature stabilize for 2 minutes.
3. Use the precision input source to provide a 15 mA input across a
channel’s input terminals.
I IN
COM
–
+
4. Verify that the input data is between 15110 and 15260 counts.
5. Repeat steps 3 and 4 for each remaining channel.
Verifying Voltage Inputs
(-INI4vi only)
1. Configure your module for
±
10 V input on all 4 channels using the
following configuration word values:
Address
Binary Value
Decimal Equivalent
O:e.0
0000 0000 0010 0001
33
O:e.1
0000 0000 0010 0001
33
O:e.2
0000 0000 0010 0001
33
O:e.3
0000 0000 0010 0001
33
e = slot number
2. Let the operating temperature stabilize for 2 minutes.
3. Use the precision input source to provide a 10 Vdc input across a
channel’s input terminals.
V IN
COM
–
+
4. Verify that the input data is between 31805 and 32131 counts.
5. Repeat steps 3 and 4 for each remaining channel.
Service
If the input data is out of range, call the Spectrum Controls Customer
Satisfaction department (206-746-9481) to make arrangements for
returning your module for factory calibration.