YOKOGAWA F3CU04-1S User Manual

A2-8
IM 34M06H62-02E 3rd Edition : Jul.16
,
2015-00
A2.7 Function Specifications
Table A2.7 shows the function specifications of the F3CU04-0S and F3CU04-1S
temperature control and PID modules.
Table A2.7 Function List (1/2)
Category
Functions Description
Controller
Input sampling period Sets the input sampling period (this affects the number of available loops).
Controller mode selection Specifies the controller mode for a pair of 2 loops.
Controller
mode
Single loop
Basic controller mode with one control and computation function where two loops operate
independently.
Cascade control Two control and computation functions perform cascade control (using 2 loops of input and output).
Two-input
changeover
Switches between two measured inputs (using a register or measured value range) and handles
them as one measured input (using 2 loops of input).
Disabled Loops specified as ‘disabled’ are not used.
Output processing
Control type selection Selects from on/off, PID, and heating/cooling control types.
Control
type
ON/OFF
Performs control by turning on (100% output) or turning off the output (0% output). *
1
PID Controls output according to PID computation results.
Heating/cooling Controls both heating and cooling outputs according to PID computation results.
Output
limiter
Output limiter
Sets the upper and lower limits for the control output.
Rate-of-change
limit
Sets the maximum allowable rate-of-change for the control output.
Output type selection *
2
Selects between time-proportional output (open collector) and continuous output (4-20 mA analog
output).
Analog output *
2
Specifies a fixed value output for any output terminal not used in a control loop (e.g. when
disabled).
Input processing
Input type selection Sets input type using switches (for all loops) or software (for individual loops).
Power supply frequency
specification
Specifies the power supply frequency. An appropriate setting value will reduce the effect of common
mode noise.
Input range setting Sets input ranges.
PV range setting Sets PV range for two-input changeover mode.
Burnout selection
Selectable from Up-scale, Down-scale, or OFF (no burnout detection) for thermocouple or RTD
input open-circuit detection.
*3
Reference junction
compensation
Sets thermocouple reference junction compensation to ‘On’ or ‘Fixed Value’.
Input
computation
Broken-line
biasing
Specifies any temperature and its bias value. A compensation value based on the linear
interpolation of the specified bias values is automatically added to a measured input. This function
is particularly useful for a deteriorated sensor, for which input compensation is desirable.
Fixed biasing
Specifies a fixed bias value to be automatically added to measured input values. This function is
useful when a measured input suffers a fixed deviation due to a known physical problem with a
sensor, or when fine adjustment of measured input is desirable for better consistency with values
indicated by other equipment, even though data deviation is within tolerance.
Input filtering
Filtering can be used to remove high frequency noise from measured inputs such as flow rate and
pressure. Filtering is a first order delay numerical operation.
Square root
extraction
Performs square root extraction on measured inputs. This function is useful for converting
differential pressure signals (of orifice, nozzle, or other types of restriction flowmeter) to flow rate
signals.
Two-input changeover
Sets the two-input changeover mode to perform changeover based on temperature range, preset
temperature value, or register value.
External PV input
External values may be used as control input values. Measured input values that have undergone
required processing by a CPU module or other means, may be used as input values.
*1: Numbers within parentheses (100% and 0%) applies when the output is configured as a continuous output
(for F3CU04-1S only).
*2: Available for F3CU04-1S only.
*3: When burnout selection is set to OFF, the measured input value at the time of burnout (open circuit) is unpredictable and
may approach either the upper limit or the lower limit. Furthermore, the burnout relay is not set.
However +OVER or -OVER detection is performed.

YOKOGAWA F3CU04-1S Specifications

General

Brand	YOKOGAWA
Model	F3CU04-1S
Category	Control Unit
Language	English