Fluidwell F030-A, Руководство пользователя

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Page 26
FW-F030-P-M_v0404_01_EN.docx
4.5.4 POWER SUPPLY WIRING
When not directly supplied from mains (type PM), the external power supply must be an
approved ELV source, insulated from AC mains by double / reinforced insulation per CSA
C22.2 No. 61010-1 / UL61010-1 / EN/IEC 61010-1.
The F030-P can be powered from an external power supply. An internal power supply is also
available in the form of a lithium battery. When both external and internal power supplies are
available, the internal power supply is interrupted and will act as a backup supply. Note that the
optional backlight only works with an external power supply.
4.5.5 SENSOR SUPPLY
For type PB / PX
– Terminal 3: limited sensor supply
With these types of power supply, there is no real sensor supply output available but only a limited
power supply. This power supply SHOULD NOT be used to supply the flowmeters electronics,
converters etc. as it will not provide adequate sustained power! All energy used by the flowmeters
pick-up will directly influence the battery life-time. It is strongly advised to use a "zero power" pickup
such as a coil or reed-switch when operating without external power. It is possible to use some low
power NPN or PNP output signals, but the battery life time will be significantly reduced (consult your
distributor). The sensor supply at terminal 3 is fixed to 1.2V DC for coil type inputs and 3.2V DC for
all other types of flowmeter inputs (set by firmware).
For type PD - Terminal 6: sensor supply 8.2V
Besides offering the limited sensor supply on terminal 3 (see above), type PD also offers a real
sensor supply of 8.2V DC, for example to power a Namur sensor, on terminal 6.
For type PF / PM
– Terminal 7: sensor supply, 8.2V, 12V or 24V
Besides offering an identical limited sensor supply on terminal 3 as described above, type PF and
PM offers a real power supply for the sensor. The flowmeter can be externally powered with 8.2V,
12V or 24V DC (max. 400mA@24V). The voltage is selected with the three switches inside the
F030-P.
•
Be sure that all the leads to the terminals are disconnected from the F030-P when the
internal plastic protection cover has been removed !
•
HIGH VOLTAGE 400V !!
NEVER connect the mains power supply to the F030-P when the plastic protection cover
has been removed !!!
To gain access to the switches, first remove the terminal strip(s) after which the internal plastic cover
can be removed. The switches are located on the right hand side as indicated:
Voltage selection f
or Type PF and Type PM
Power supply input:
Type PF: 24V AC / DC
Type PM: 115V - 230V AC
Sensor supply output:
Max 400mA @ 24V DC
Sensor
power
Switch
J1 J2 J3
1.2 / 3.2V DC on on on
8.2V DC off on on
12V DC off on off
24V DC off off Off
Fig. 14: Switch position voltage selection (type PF and PM).
J3
PF / PM
J2 J1