Super Systems 20Q - Manual (Page 108)

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CONTROL ACTIONS CONTROL ACTIONS CONTROL ACTIONS CONTROL ACTIONS CONTROL ACTIONS
Algorithm
Algorithm Algorithm Algorithm Algorithm: PID + SMART
Types:
Types: Types: Types: Types:
- one control output (digital or analog output)
- one control output splitted on two outputs.
- two control outputs
NOTE
NOTE NOTE NOTE NOTE: the outputs can be freely selected among analog, digital
or servo outputs.
Digital output types Digital output types Digital output types Digital output types Digital output types:
Relay, SSR or TRIAC.
Digital output action type Digital output action type Digital output action type Digital output action type Digital output action type:
Proportional time
Analog output types Analog output types Analog output types Analog output types Analog output types: 20 mA.
Servomotor output
Servomotor output Servomotor output Servomotor output Servomotor output:
Two relays with interlocked contact
Servomotor output type: Servomotor output type: Servomotor output type: Servomotor output type: Servomotor output type:
- Close loop
- Open loop with feedback for valve position indication only
- Open loop without feedback.
Proportional Band
Proportional Band Proportional Band Proportional Band Proportional Band: programmable from 0.5% to 999.0% of
the input span.
Setting a PB equal to 0 the control action becomes ON/OFF.
Hysteresis (for ON/OFF control action)
Hysteresis (for ON/OFF control action) Hysteresis (for ON/OFF control action) Hysteresis (for ON/OFF control action) Hysteresis (for ON/OFF control action): programmable
from 0.1% to 10.0 % of the input span.
Integral time
Integral time Integral time Integral time Integral time: programmable from 1 second to 20 minutes or
excluded.
Resolution Resolution Resolution Resolution Resolution:
- for full scale up to 25 A: 0.1 A.
- for full scale from 26 A to 100 A: 1 A
Minimum duration of the period (ON or OFF) to
Minimum duration of the period (ON or OFF) to Minimum duration of the period (ON or OFF) to Minimum duration of the period (ON or OFF) to Minimum duration of the period (ON or OFF) to
perform the measurement
perform the measurement perform the measurement perform the measurement perform the measurement: 120 ms.
SET POINTS SET POINTS SET POINTS SET POINTS SET POINTS
This instrument allows to use up to 4 set points: SP, SP2, SP3 and
SP4.
The set point selection is possible only by logic input.
Set point transfer
Set point transfer Set point transfer Set point transfer Set point transfer:
The transfer between one set point to another (or between two
different set point values) may be realized by a step transfer or by
a ramp with two different programmable rates of change (ramp
up and ramp down).
Slope value
Slope value Slope value Slope value Slope value: 1 - 200 eng. unit/min or step.
Set points limiter
Set points limiter Set points limiter Set points limiter Set points limiter: rL [r.E12] and rH [r.E13] parameters, program-
mable.
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