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FW-F074-A-M_v0404_01_EN.docx
4.6
TERMINAL CONNECTORS SAFE AREA APPLICATIONS
– TYPE PB / PD / PL / PX
Take careful notice of all safety and precautionary measures indicated in paragraph
4.5: Electrical Installation and review paragraph 4.5.3 and 4.5.4 before applying any
field or power supply wiring.
For Intrinsically Safe applications: read chapter 5.
Following terminal connectors are available on the F074-A Type PB / PD/ PL / PX:
Fig. 15: Overview of terminal connectors F074-A
– type PB / PD / PL / PX
4.6.1
TERMINALS 1-2: SENSOR INPUT
The F074-A requires a (0)4-20mA sensor signal which will be processed 4 times a second with a 16
bits accuracy. The input is not isolated.
The screen of the signal wire can be connected to the common ground terminal. See paragraph
4.5.3.
Type PL: input loop power
Model F074-A-PL is powered from the 4-20mA sensor signal.
Fig. 16: Terminal connections - Analog signal input.
INTERNAL
EXTERNAL
(0)4 -20mA signal input
2
Common ground unit
SIGNAL
1
GND
shielding
6
Type PD
(input voltage unit)
+
max. 25mA
+
5
POWER SUPPLY
UNIT
TYPE: PD / PX
6
1
2
SENSOR SIGNAL
ANALOG INPUT
TYPE: A (0)4-20mA
8
7
R1
R1
+
+
10
POWER SUPPLY
BACKLIGHT
OPTION: ZB
+
SENSOR
SUPPLY
TYPE: PD
4
9
I
CONTROL
OUTPUT
TYPE: OT
