Commissioning of the water sampling station
28
© Lutz-Jesco GmbH 2020
BA-42840-02-V03
Water sampling station
EASYPRO COMPACT
Operating instructions
8.6.2.2 Actuation via a timer
The output can be used for direct actuation via a timer. This is required
e.g. to run the flocculant pump or the peristaltic pumps over a certain
time.
Pre-conditions for actions:
ü
You have assigned the "Timer switch" input to a controller using the
configuration wizard as described in the chapter 8.5 “First steps” on
page 25.
Perform the following work steps:
1.
Working in the System menu, navigate to > Outputs and configure
the output (see section 8.6.2 “Outputs” on page 27).
2.
Navigate to the menu > setpoints. Here, you can set the desired set
control output directly from 0 to 100 %.
3. Reference set:
Here, you can set various control outputs and via the
timers in the “Switching” tab, you can determine when the control
output should be changed. The checkmark must be set against
“Switch setpoints automatically”. Further information pertaining to
switching is found in section 9.6 “Setpoints and reference sets” on
page 36.
ü
Actuation configured via a timer.
8.6.2.3 Controller parameters
You can configure the behaviour of the individual controller channels.
Explanations of the various functions can be found in Tab. 27 “Functions
of the individual controllers” on page 24 and in section 18 “Glossary”
on page 55.
Perform the following work steps:
1.
Working in the main menu under System > Controller, navigate to the
“parameter” tab.
2.
Working in the “Parameter” tab, configure every control channel and
state the following information.
3. Control direction:
Configure the direction of control. If a switch is to
be made between a 1- and a 2-side control, this must be set in the
configuration assistant.
4. Function:
Set the desired controller function. Possible: P-, PI-, PD-
and PID-controller.
5. Xp, Tn, and Tv:
You can configure these parameters depending on
the control function that has been set.
6. Disturbance variable and factor disturbance variable:
If you have
activated a disturbance variable (see chapter 8.6.1.4 “Disturbance
variable” on page 26), you can configure the influence of this
disturbance variable on the selected controller channel. You can
switch the influence on or off and set a factor between 0.1 and 10.
ü
Configuration of the controller parameters completed.
8.6.2.4 Digital output signals
You can use digital output signals via the outputs of the alarm relay, an
optocoupler circuit board or a relay circuit board. The following sections
describe the configurations that you can perform.
Alarm relay as an alarm output.
You can use the alarm relay (terminals 41 – 43) on the main board as an
output for alarm messages.
Perform the following work steps:
1.
In the main menu under System > Outputs, navigate to the “Digital”
tab.
2.
Working under “Digital output”, select the “alarm relay” output.
3.
Configure the alarm relay by entering the following data.
4. Action:
Choose between “normal opened” (N.O., make contact) or
“normal closed” (N.C., break contact).
5. Latching:
“On “= the alarm relay is active until all alarms have been
manually confirmed. “Off” = the relay is automatically deactivated if
the active alarms are no longer pending.
6. Output triggers upon:
Select which alarms should trigger the alarm
relay. The relay switches as soon as one of the selected alarms is
active.
7. Alarm delay:
Determine the earliest point (in seconds) at which the
relay should switch after activation of the alarm.
ü
Configuration of the alarm relay completed.
Further alarm outputs
In addition to the alarm relay, you can use the unused outputs of the
optocoupler circuit board or relay circuit boards for further alarm
messages.
Pre-conditions for actions:
ü
You have used the configuration assistant to assign the “alarm
output” function to a free output (see section “Configuration
assistant” on page 25).
Perform the following work steps:
1.
In the main menu under System > Outputs, navigate to the “Digital”
tab.
2.
Working under “Digital output” select the desired output.
4
The free outputs will be displayed which you have configured as an
“alarm output” in the configuration assistant. Example: “Relay 1.2”.
The first digit stands for the number of the output circuit board (1.X)
and the second digit stands for the number of the output on the
circuit board (X.2).
3.
Working under the “Function” display, check whether the function
with “alarm output” is displayed.
4.
Configure the alarm output by entering the following data.
5. Action:
Choose between “normal opened” (N.O., make contact) or
“normal closed” (N.C., break contact).
6. Latching:
“On “= the alarm output is active until all alarms have
been manually confirmed. “Off” = the output will be deactivated
automatically if the alarms are no longer active.
