FW-F093-P-MAN-EN_v0101_01
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4.4.2.
TERMINAL CONNECTORS WITH POWER SUPPLY - TYPE : PB / PD / PX
For Intrinsically Safe applications: read chapter 5.
The following terminal connectors are available:
Fig. 9: Overview of terminal connectors F093-P-(PB / PD / PX) and options.
SENSOR SUPPLY
Type PB / PD / PX - terminal 3: sensor supply 1.2V - 3.2V:
Terminal 3 provides a limited supply voltage of 3.2 V DC (coil signals 1.2V) for the signal output of
the Tachometer.
Note:
This voltage MAY NOT be used to power the Tachometers electronics, converters etc, as it
will not provide adequate sustained power ! All energy used by the Tachometers pick-up will directly
influence the battery life-time (type PB). 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).
Type PD - terminal 6: sensor supply 8.2V:
With this option, a basic but real sensor supply of max. [email protected] is available to power e.g. a
Namur sensor.
REMARKS: TERMINAL CONNECTORS:
Terminals 1-3; Tachometer input
:
Three basic types of Tachometer signals can be connected to the unit: pulse, active pulse or coil.
The screen of the signal wire must be connected to the common ground terminal
The input signal type has to be selected with the correct SETUP-function (read par. 3.2.3.)
The F093-P is suitable for use with Tachometers which have a coil output signal.
Two sensitivity levels can be selected with the SETUP-function:
COIL LO: sensitivity from about 90mVp-p.
COIL HI: sensitivity from about 20mVp-p.
Type ZF (option): offers for setting COIL HI : sensitivity from about 10mVp-p.
Type ZG (option): offers for setting COIL HI : sensitivity from about 5mVp-p.
5
POWER SUPPLY
UNIT
TYPE: PD / PX
6
1
2
SENSOR SIGNAL
PULSE INPUT
TYPE: P
SIGNAL
3
+
8
ALARM
OUTPUT
TYPE: OT
7
R1
R1
+
+
10
POWER SUPPLY
BACKLIGHT
OPTION: ZB
+
SENSOR
SUPPLY
TYPE: PD
4
9
INTERNAL
EXTERNAL
Coil signal input
3
2
COIL
Common ground unit
COIL
1
GND
Input
sensitivity
selectable:
coil high / low
+
V ref.
1.2V DC
shielding
