Nor-Cal SDC15 Controller - Manual (Page 140)

6-6
Chapter 6. LIST OF DISPLAYS AND SETTING DATA
■ Parameter bank
Bank selection:
Display Item Contents Initial
value User
level Remarks
Control method 0: ON/OFF control
1: Fixed PID
2: ST (Self-tuning) 0
or
1
0 The initial value is “0” when
control output 1 is relay
output. The initial value is “1”
in other cases.
MV low limit at AT -10.0 to +110.0% 0.0 0
Displayed when the control
method is other than the
ON/OFF control (CtrL
≠ 0). MV high limit at AT -10.0 to +110.0% 100.0 0
Differential
(for ON/OFF control) 0 to 9999U 5 0 Displayed when the control
method is other than the
ON/OFF control (CtrL
≠ 0).
ON/OFF control
action point offset -1999 to +9999U 0 2
PV filter 0 to 120.0s 0.0 0
PV ratio 0.001 to 9.999 1.000 1
PV bias -1999 to +9999U 0 0
Time proportional
cycle unit 1 0: Unit of “1s”
1: Fixed at “0.5s”.
(Cycle time setting is disabled.)
2: Fixed at “0.2s”.
(Cycle time setting is disabled.)
3: Fixed at “0.1s”.
(Cycle time setting is disabled.)
0 2
Displayed when MV1 (time
proportional output (heat) of
Heat/Cool control) is
connected to the relay
control output, voltage pulse
output, or event output in the
DO Assignment.
The initial value of Time
proportional cycle 1 is “10”
when the control output is the
relay output. The initial value
is “2” in other cases. Time proportional
cycle 1 5 to 120s (Output includes the relay
output.)
1 to 120s (Output does not include
the relay output.) 10
or
2
0
Time proportional
cycle unit 2 0: Unit of “1s”
1: Fixed at “0.5s”
(Cycle time setting is disabled.)
2: Fixed at “0.2s”.
(Cycle time setting is disabled.)
3: Fixed at “0.1s”.
(Cycle time setting is disabled.)
0 2
Displayed when the
Heat/Cool control is used
(C26=1) and MV2 (time
proportional output (heat) of
Heat/Cool control) is
connected to the relay
control output, voltage pulse
control output, or event
output.
The initial value of Time
proportional cycle 2 is “10”
when the model has one
control output point. The
initial value is “2” in other
cases. Time proportional
cycle 2 5 to 120s (Output includes the relay
output.)
1 to 120s (Output does not include
the relay output.) 10
or
2
0
Time proportional
cycle mode 0: Controllability aiming type
1: Operation end service life aiming
type (Only one ON/OFF operation
within Time proportional cycle)
0
or
1
2 The initial value is “1” when
control output 1 is the relay
output. The initial value is “0”
in other cases.
SP up ramp 0.0 to 999.9U
(No ramp when set at “0.0U”) 0.0 2 Time unit of the ramp is
selected by the SP ramp unit
(C32).
SP down ramp 0.0 2
Displayed under the same
conditions as
CY except that a
relay is not included in the
output.
Displayed under the same
conditions as
CY2 except that
a relay is not included in the
output.