FW-F090-A-PL-M_v0403_07_EN.docx
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4.4.
INSTALLING THE HARDWARE
4.4.1.
INTRODUCTION
▪
Electro static discharge does inflict irreparable damage to electronics! Before installing
or opening the unit, the installer has to discharge himself by touching a well-grounded
object.
▪
This unit must be installed in accordance with the EMC guidelines (Electro Magnetic
Compatibility).
FOR INSTALLATION, PAY EMPHATIC ATTENTION TO:
▪
Separate cable glands with effective IP67 (NEMA4X) seals for all wires.
▪
Unused cable entries: ensure that you fit IP67 (NEMA4X) plugs to maintain rating.
▪
A reliable ground connection for both the sensor, and if applicable, for the metal casing. (above)
▪
An effective screened cable for the input signal, and grounding of its screen or at the sensor
itself, whichever is appropriate to the application.
4.4.2.
TERMINAL CONNECTORS
For Intrinsically Safe applications: read chapter 5.
The following terminal connectors are available:
Fig. 6: Overview of terminal connectors standard configuration F090-A-PL and options.
REMARKS: TERMINAL CONNECTORS:
Terminals 1-2; sensor INPUT LOOP POWERED 4-20mA - type A-PL
:
Model F090-A-PL is powered from the 4-20mA sensor signal. The unit will process the signal four
times a second with a 16 bits accuracy. The input is not isolated.
The screen of the signal wire must be connected to the common ground terminal.
INTERNAL
EXTERNAL
4 - 20mA signal input - input loop powered
2
Common ground unit
SIGNAL
1
GND
shielding
-
+
max. 25mA
Signal / supply
Terminal 9-10: power supply backlight - type ZB (option):
To power the backlight, a voltage in the range 20-30V DC has to be connected.
Maximum current 30mA. Connect the "
-
" to terminal 9 and the "
+
" to terminal 10.
1
2
SENSOR SIGNAL
ANALOG INPUT
TYPE: A-PL 4-20mA
10
POWER SUPPLY
BACKLIGHT
OPTION: ZB
+
9
I
