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Parameter listing and descriptions
279
ACH550 User's Manual
Group 41: PROCESS PID SET 2
This group defines a second set of parameters used with the
Process PID (PID1) controller.
The operation of parameters 4101…4126 is analogous with
Process PID set 1 (PID1) parameters 4001…4026.
PID parameter set 2 can be selected by parameter 4027
PID
1
PARAM
SET
.
4027
PID 1 PARAM SET
-6…11
Process PID (PID1) has two separate sets of parameters, PID set 1 and
PID set 2.
PID
1
PARAM
SET
defines which set is selected.
• PID set 1 uses parameters 4001…4026.
• PID set 2 uses parameters 4101…4126.
0 =
SET
1 – PID set 1 (parameters 4001…4026) is active.
1 =
DI
1 – Defines digital input
DI
1 as the control for PID set selection.
• Activating the digital input selects PID set 2.
• De-activating the digital input selects PID set 1.
2…6 =
DI
2…
DI
6 – Defines digital input
DI
2…
DI
6 as the control for PID
set selection.
• See
DI
1 above.
7 =
SET
2 – PID set 2 (parameters 4101…4126) is active.
8…11 =
TIMER
1…4 – Defines the timer as the control for the PID set
selection (Timer de-activated = PID set 1; Timer activated = PID set
2)
• See parameter
-1 =
DI
1(
INV
) – Defines an inverted digital input
DI
1 as the control for PID
set selection.
• Activating the digital input selects PID set 1.
• De-activating the digital input selects PID set 2.
-2…-6 =
DI
2(
INV
)…
DI
6(
INV
) – Defines an inverted digital input
DI
2…
DI
6
as the control for PID set selection.
• See
DI
1(
INV
) above.
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