FW-E112-P-MAN-EN_v0101_08
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4 - FLOWMETER
SIGNAL
4.1
The E112-P is able to handle several types of input signal. The type of
flowmeter signal is selected with SETUP 4.1.
Note:
The selections "Active pulse input" offer a pulse detection level of
50% of the supply voltage.
Read also par. 4.5. Terminal S1-S6 Flowmeter Input.
TYPE OF SIGNAL
EXPLANATION
RESISTANCE
FREQ
.
/
M
V
REMARK
NPN
NPN input
100K
pull-up
6 kHz.
(open collector)
NPN - LP
NPN input
with low pass filter
100K
pull-up
2.2 kHz.
(open collector)
less sensitive
REED
Reed-switch input
1M
pull-up
1.2 kHz.
REED - LP
Reed-switch input
with low pass filter
1M
pull-up
120 Hz.
Less sensitive
PNP
PNP input
100K
pull-down
6 kHz.
PNP - LP
PNP input
with low pass filter
100K
pull-down
700 Hz.
Less sensitive
NAMUR
Namur input
820 Ohm
pull-down
4 kHz.
External power
required
COIL HI
High sensitive
sine-wave (coil) input
- 20mVp-p.
Sensitive for
disturbance!
COIL LO
Low sensitive
sine-wave (coil) input
- 120mVp-p.
Normal
sensitivity
ACT_8.1
Active pulse input
8.2 VDC
3K9
pull-down
10KHz.
External power
required
ACT_24
Active pulse input
24 VDC
3K
pull-down
10KHz.
External power
required
