SFA ZPS 2.3 Instrucciones De Manejo Y De Montaje página 17

menu item "internal converter – adjustment" serves for the accurate adjustment of the zero point.
In order to equalise possible air leaks inside the pneumatic level
measuring device, the pilot tube has to be fully emerged from the water
after completion of the pumping process. For this purpose, the adjustment
of a follow-up time of the according duration is necessary. Alternatively,
the small-size compressor set for the air bubbler level measurement
system can be used.
3.2.6 Signal contacts
The 4 potential-free signal contacts are located in the upper circuit board (left).
The 4 signal contacts are free programmable: the contacts 1 and 2 are opened in case of power
failure and the contacts 3 and 4 are closed in case of power failure.
If the power supply of the control is okay, then the signal contacts are closed in case of a fault or
signal.
3.3 Commissioning of the control system
After the complete connection of the pump cables, the mains power supply and the level sensor,
the parameters can be set after the mains voltage has been applied. Only trained personnel are
allowed to set those parameters.
Now the plant can be commissioned by pressing the key
test runs, the set switch points have to be checked, and, if necessary, corrected.
Checking of the control system without pumps :
In order to be able to check the control system without a pump, the following standard settings are
required :
1. Connect the control system to a single-phase network (connection of N and L1)
2. Set motor current limitations for both pumps to 0.0 A
3. Switch off rotary field
4. Bridge thermal contacts TH2 AND TH4
5. Disable thermic error for pump 1 and pump 2.
If the respective level sensors are connected, all program functions can be checked without having
to connect the pumps.
4. DISPOSAL
Only for EU-countries
Do not dispose of the control system with the regular household garbage!
According to the European directive 2012/19/EG about waste electric and
electronic equipment and the transposition into national law, used electric tools.
have to be collected separately and recycled in an environmentally compliant
manner.
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