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ACH550-01 User's Manual
Group 42: EXT / TRIM PID
This group defines the parameters used for the External PID
controller (PID2) of the ACH550.
The operation of parameters 4201...4221 is analogous with
Process PID controller (PID1) set 1 parameters 4001...4021.
Code Description
4201
See 4001...4021.
...
4221
4228 ACTIVATE
Defines the source for enabling the external PID function.
• Requires 4230
0 =
– Disables external PID control.
NOT SEL
1 =
1 – Defines digital input
DI
PID control.
• Activating the digital input enables external PID control.
• De-activating the digital input disables external PID control.
2...6 =
2...
DI
DI
enabling external PID control.
• See
1 above.
DI
7 =
DRIVE RUN
external PID control.
• Activating the start command (drive is running) enables external PID
control.
8 =
– Defines the power-on as the control for enabling external PID
ON
control.
• Activating power to the drive enables external PID control.
9...12 =
TIMER
external PID control (Timer active enables external PID control).
• See
Group 36: TIMED
-1 =
1(
) – Defines an inverted digital input
DI
INV
enabling external PID control.
• Activating the digital input disables external PID control.
• De-activating the digital input enables external PID control.
-2...-6 =
2(
DI
INV
as the control for enabling external PID control.
• See
1(
DI
INV
4229 OFFSET
Defines the offset for the PID output.
• When PID is activated, output starts from this value.
• When PID is deactivated, output resets to this value.
• Parameter is not active when 4230
active).
Parameter listing and descriptions
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= 0 (
TRIM MODE
1 as the control for enabling external
DI
6 – Defines digital input
– Defines the start command as the control for enabling
1...4 – Defines the timer as the control for enabling
FUNCTIONS.
)...
6(
) – Defines an inverted digital input
DI
INV
) above.
Range
-6...12
).
NOT SEL
2...
6 as the control for
DI
DI
1 as the control for
DI
0.0...100.0%
<> 0 (i.e. trim mode is
TRIM MODE
2...
6
DI
DI
291
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