ControlMaster CM30, CM50 and CMF310
Universal process controllers,
1
/
4
,
1
/
2
DIN and fieldmount
7 Advanced Level
42
IM/CM/ED–EN Rev. X
7.3 Input/Output
Enables analog and digital inputs / outputs and relays to be configured.
Analog Inputs
Analog Input 1 (4)*
Input Type
Millivolts, Milliamps, Volts, Resistance (Ohms), RTD, Thermocouple, Digital volt-free,
24V Digital, Freq. Input, Pulse Input
.
Additional
Input Type
comments:
Digital Volt Free
Acts as a digital input.
Freq. Input
Sets the maximum frequency and equivalent flow rate in the engineering range 0
to 6000 Hz. (A frequency of 0.01 to 6 KHz can be used to create an analog value.)
Pulse Input
This parameter counts pulses and is recommended only for use with electromagnetic
flowmeters.
Elect. Low
Sets the required electrical range.
Note
. Applicable only to
Millivolts, Milliamps, Volts
and
Ohms.
Linear Inputs
Standard Analog Input
Accuracy (% of Reading)
Millivolts
0 to 150 mV
0.1 % or ±20 µV
Milliamps
0 to 45 mA (CM30 & CMF310)
0.2 % or ±4 µV
0 to 50 mA (CM50)
Volts
0 to 25 V
0.2 % or ±1 mV
Resistance
(low)
0 to 550
0.2 % or ±0.1
Resistance
(high)
0 to 10 k
0.1 % or ±0.5
Elect. High
Sets the required electrical range.
Note
. Applicable only to
Millivolts, Milliamps, Volts
and
Freq. Input
.
Linearizer
Selects the linearizer type required to condition the input signal.
Notes
. For thermocouple applications using an external fixed cold junction, set
Input Type
to
Millivolts
and select the appropriate linearizer type.
Not applicable for
Pulse Input
,
Digital volt-free
,
24V Digital
parameters.
Eng Units
The selected units are used by the linearizer and displayed in the
Operator
pages.
Not applicable for:
Pulse Input
,
Digital volt-free
,
24V Digital
parameters.
Thermocouple and RTD inputs are restricted to
deg C
,
deg F
,
Kelvin
–
see Appendix C, page 108 for analog input (engineering) units.
Eng. Dps
Engineering decimal places – selects the resolution required to be displayed
for the input value.
*Analog Inputs 2 to 4:
Freq Input, Pulse Input
and
Resistance
not available. A
Thermocouple
input type can be set only if the first input is set
to
Thermocouple
.
Menu
Input/Output
Exit
Select