CLS200 Series User’s Guide
Chapter 8: Troubleshooting and Reconfiguring
158
Voltage Inputs to Sixteen-Loop Controllers
Each voltage input has two scaling resistors installed: one at RC and one at RD for the input. The
values of the resistors determines the input range.
Table 8.14 — Resistor Values for Voltage Inputs to Sixteen-Loop Controllers
INPUT RANGE
RESISTOR VALUES
RC RD
0 to 5VDC 39.2Ω 475.0Ω
0 to 10VDC 49.9Ω 301.0Ω
Resistor tolerance: ±0.1%
Table 8.15 — Resistor Locations for Voltage Inputs to Sixteen-Loop Controllers
LOOP
RESISTOR LOCATIONS
LOOP
RESISTOR LOCATIONS
RC RD RC RD
1 R58 R42 9 R57 R41
2 R56 R40 10 R55 R39
3 R54 R38 11 R53 R37
4 R52 R36 12 R51 R35
5 R50 R34 13 R49 R33
6 R48 R32 14 R47 R31
7 R46 R30 15 R45 R29
8 R44 R28 16 R43 R27
Scaling and Calibration
The controller provides offset calibration for thermocouple, RTD, and other fixed ranges, and offset
and span (gain) calibration for linear and pulse inputs. In order to scale linear input signals, you must:
1. Have appropriate scaling resistors installed.
2. Select the display format. The smallest possible range is -.9999 to 3.0000; the largest possible
range is -9,999 to 30,000.
3. Enter the appropriate scaling values for your process.
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