Watson-Marlow MM440 User Manual

Page 124

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3 Functions

Issue 10/06

MICROMASTER 440 Operating Instructions

124

6SE6400-5AW00-0BP0

Vdc controller

P1240 =...

Configuration of Vdc controller
Enables / disables Vdc controller.
0 Vdc controller disabled
1 Vdc-max controller enabled

P1254 =...

Auto detect Vdc switch-on levels
Enables/disables auto-detection of switch-on
levels for Vdc control functionalities.
0 Disabled
1 Enabled

t

t

⏐f⏐

1

-controller active

V

DC_max

t

V

DC

0

r0056 Bit14

r1242

A0911

f

f

act

set

PID controller

P2200 =...

BI: Enable PID controller
PID mode Allows user to enable/disable the PID controller. Setting to 1 enables the PID
controller. Setting 1 automatically disables normal ramp times set in P1120 and P1121 and
the normal frequency setpoints.

P2253 =...

CI: PID setpoint
Defines setpoint source for PID setpoint input.

P2254 =...

CI: PID trim source
Selects trim source for PID setpoint. This signal is multiplied by the trim gain and added to
the PID setpoint.

P2257 =...

Ramp-up time for PID setpoint
Sets the ramp-up time for the PID setpoint.

P2258 =...

Ramp-down time for PID setpoint
Sets ramp-down time for PID setpoint.

P2264 =...

CI: PID feedback
Selects the source of the PID feedback signal.

P2267 =...

Max. value for PID feedback
Sets the upper limit for the value of the feedback signal in [%]..

P2268 =...

Min. value for PID feedback
Sets lower limit for value of feedback signal in [%]..

P2280 =...

PID proportional gain
Allows user to set proportional gain for PID controller.

P2285 =...

PID integral time
Sets integral time constant for PID controller.

P2291 =...

PID output upper limit
Sets upper limit for PID controller output in [%].

1

1

0.0

0.0

0.0

1.00 s

1.00 s

755.0

100.00 %

0.00 %

3.000

0.000 s

100.00 %

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