Baelz Automatic BA 375-E42 - 7.5 Commissioning; 7.5.2 Initialization run

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Motorized Rotary Actuator baelz 375-E42
7.5 Commissioning
7.5.1 Quick start guide
1. Set DIP switches
2. Connect to supply 3. Start initialization run
7.5.2 Initialization run
Iftheunitisnotinitialized,thegreenLEDashes.TheredLEDislitwhenthepositionof
thepotentiometerisnotidealforaninitializationrun.(Seesection7.5.3 for meaning of LED
signals.)Aninitializationruncanstillbecarriedout,butitwilltakeapprox.1xvalvetraveltime
longer. During a successful initialization run, the actuator is moved to both of its end positions.
The potentiometer and the position of the actuator are synchronized and values for actuator
travel time and switching hysteresis are determined.
Switch DIP switch 12 from 0 to 1 to start an initialization run. The red LED is lit during
initialization.
When initialization has been successfully completed, only the green LED is lit. For error signals
see table in section "Errors after an initilization run", page 26
As long as DIP switch 12 is set to 1, errors and alarms occurring during normal positioner
operation will not be shown. This enables errors occurring during initialization to be
distinguished from errors during normal positioner operation.
Switch DIP 12 back to 0 after the initialization run to show any errors occurring in normal
positioner operation on the red LED.
(Aftertherstinitializationrun(unitnotpreviouslyinitialized),theunitmovestothe50%
position upon completion of initialization. As soon as DIP 12 is set to 0, the baelz 7020A will
followthesetvaluesignalatanalogueinput2.)
LED
signal
LED
signal
Meaning
1
green off
red off
Unit is switched off.
2
green off
red on
Initialization run in progress.
3
green
ashing
red off
Unitisnotinitialized.Potentiometerinidealpositionforinitializationrun(between7.5and
17.5%).
4
green
ashing
red on
Unit is not initialized. Potentiometer not in ideal position for initialization run.
Initialization still possible.
(IftheredLEDisickering,thepositionofthepotentiometerisattheedgeoftheoptimalrangeandthereforeOK.)
5
green
and red
ashing
Errorduringinitialization.Unitisnotinitialized.TheashingredLEDshowsthenumber
oftheerrorcode:3ashes,interval,3ashes,interval→errorcode3.Seealsosection
7.6.1.
6
green on
red off
Unit is initialized. No errors.
7
green on
red on
Immediately after the unit is switched on, both LEDs are lit for 2 seconds to show that they
are in working order.
8
green on
red
ashing
Unitisinitialized.DIP12setto1→errorafterinitializationrun,seesection7.6.1
DIP12setto0→errororalarmduringnormalpositioneroperation,seesection7.5.2.
12
↑
0
1