Grundfos DID Montage- Und Betriebsanleitung Seite 25

Changing the direction of the controller
1. Select "Direction: " with the [Up] and [Down] buttons.
Confirm with [OK].
2. Select "up" or "down" with the [Up] and [Down] buttons.
Confirm with [OK].
Changing the level of the deadband
1. Select "Deadband: " with the [Up] and [Down] buttons.
Confirm with [OK].
2. Change the value for the level of the deadband with the [Up],
[Down], [Left] and [Right] buttons. Confirm with [OK].
9.6.3 Stop on Error:
C2 Stop on Error:
Stop on Error:
►
Stop on
The behaviour of the controller can be defined for
Error:
the parameter alarm selected under "Alarm
sources...".
9.6.4 Settings 2-P
C2 Settings
Type:
►
Hysteresis:
Stop on Error:
Max. 100%[s]:
Disturb.:
D. factor:
Direction:
Type:
Controller type: "PID" or "2-P"
Hysteresis:
Hysteresis for the 2-P-controller. The switching
points for the controller are:
Setpoint ± Hysteresis
Stop on Error: If "Stop on Error: " is set to "Yes", the controller
stops, if a sensor error occurs. The status of the
controller changes to "Stopped".
Max. 100%[s]: Maximum dosing time with a controller output of
100 %.
Disturb.:
Defines the source of the disturbance control.
D. factor:
The disturbance factor is a multiplicative factor
Direction:
Direction of the controller:
• "up": The controller increases the controller
output, if the setpoint is above the parameter,
and decreases the controller output, if the
setpoint is below the parameter.
• "down": The controller decreases the controller
output, if the setpoint is above the parameter,
and increases the controller output, if the
setpoint is below the parameter.
Changing the controller type
1. Select "Type: " with the [Up] and [Down] buttons. Confirm
with [OK].
2. Select "PID", "2-P" or "none" with the [Up] and [Down]
buttons. Confirm with [OK].
– "none" deactivates the controller.
Changing the hysteresis of the controller
1. Select "Hysteresis: " with the [Up] and [Down] buttons.
Confirm with [OK].
2. Change the hysteresis value with the [Up], [Down], [Left] and
[Right] buttons. Confirm with [OK].
Assigning the disturbance control to an input (parameter)
1. Select "Disturb.: " with the [Up] and [Down] buttons. Confirm
with [OK].
– "Disturb.: " defines the source of the disturbance control.
Analog outputs ("4-20 mA") or digital outputs ("PULSE" or
"PWM") can be selected.
2. Change the input for disturbance control with the [Up] and
[Down] buttons. Confirm with [OK].
Changing the disturbance factor
Yes
1. Select "D. factor: " with the [Up] and [Down] buttons. Confirm
with [OK].
– "D. factor: " is a multiplicative factor.
2. Change the disturbance factor with the [Up], [Down], [Left]
and [Right] buttons. Confirm with [OK].
Changing the direction of the controller
1. Select "Direction:
Confirm with [OK].
2. Select "up" or "down" with the [Up] and [Down] buttons.
Confirm with [OK].
9.6.5 Output settings...
If an analog output "4-20mA #1", "4-20mA #2" or "4-20mA #3" is
2-P
selected, the 0-100 % output of the controller is automatically
assigned to 4-20 mA.
0.05
If a digital output is selected, two different types can be defined:
Yes
"PULSE" or "PWM".
200
C2 Output settings...
DI 1
Type:
►
50.0
Pulses [Min]:
up
Pulses [Min]: Maximum number of pulses per minute for 100 %
output. The highest number is 180.
Changing the digital output to "PULSE"
1. Select "Type: " with the [Up] and [Down] buttons. Confirm
with [OK].
2. Select "PULSE" with the [Up] and [Down] buttons. Confirm
with [OK].
– An additional row is shown.
Assigning the parameter value for an output
The output range of the controller is 0 % to 100 %, so it is not
necessary to assign the parameter value for an output.
The only parameter that can be changed is the maximum of
pulses/min for 100 % output.
Changing the maximum of pulses/min for 100 % output
1. Select "Pulses [Min]:
Confirm with [OK].
2. Change the maximum pulses/min value with the [Up], [Down],
[Left] and [Right] buttons. Confirm with [OK].
C2 Output settings...
Type:
►
Period [s]:
Period [s]:
Duration of one pulse for 100 % output. The highest
duration is 100 s.
" with the [Up] and [Down] buttons.
" with the [Up] and [Down] buttons.
PULSE
180
PWM
100
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