Commissioning
23
© Lutz-Jesco GmbH 2020
Subject to technical changes.
200123
BA-46020-02-V04
Multi-Channel Controller
TOPAX
®
MC
Operating instructions
Perform the following work steps:
1.
Working in the main menu under System > Outputs, navigate to the
“Controller” tab.
2.
Working in the “Controller” tab, configure the controller output and
state the following information.
3. Y-alarm:
Activate the Y alarm. The Y alarm is a safety cut-out. If the
controller output power amounts to more than 95 % (e.g. through a
malfunction) over the set time, the Y alarm will be triggered and the
corresponding controller output will be set to 0 %. You can set a time
between 0 and 200 minutes.
4. Basic load:
Depending on the controller function, you can set a base
load which is always active independently of the control variable.
With a base load of 10 %, the actor is always actuated with a mini-
mum of 10 %.
5. Limit:
Depending on the controller function, you can set a limit of be-
tween 5 – 100 %. State the value at which the actor should be actu-
ated as maximum.
6.
Further settings are dependant on the function of the controller. Fur-
ther information is available in Tab. 23 “Functions of the individual
controllers” on page 19.
ü
Configuration of the controller outputs completed.
8.2.2.2 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 8.1 “First steps” on
page 19.
Perform the following work steps:
1.
Working in the System menu, navigate to > Outputs and configure
the output (see section 8.2.2 “Outputs” on page 22).
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 32.
ü
Actuation configured via a timer.
8.2.2.3 Controller parameters
You can configure the behaviour of the individual controller channels. Ex-
planations of the various functions can be found in Tab. 23 “Functions of
the individual controllers” on page 19 and in section 15 “Glossary” on
page 47.
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 8.2.1.4 “Disturbance
variable” on page 21), you can configure the influence of this dis-
turbance 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.
8.2.2.4 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 ac-
tive.
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 opto-
coupler 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 out-
put” function to a free output (see section “Configuration assistant”
on page 19).
Perform the following work steps:
1.
In the main menu under System > Outputs, navigate to the “Digital”
tab.
