Dynalco SWTD-1000 Speed Switch/Transmitter - Manual (Page 6)

Operating Instructions SWTD-1000 DYNALCO
4 //
3.2.2 Digital Sensor Connection (IQ)
Frequency range (-3dB) 0.01 Hz / 35 kHz
Input impedance 46 K
Input voltage Max. ± 36V peek
Minimum pulse width Min. pulse width 1.5 µs
Trigger level • min.U
low
= 1.6 V
• max.U
high
= 4.5 V
Screen A terminal is provided for the sensor cable screen. This terminal is connected to
the sensor supply 0V. (0VS)
Sensor monitoring 1 of 2 settings may be configured via software:
• No Sensor Monitoring
• Monitoring of powered sensors
[Also for 2 wire sensors supplied via the Pull-up resistor (Jumper J1) ].
Æ The sensor is considered to be defective if the sensor current
consumption falls outside of I
min
and I
max
.
I
min.
= 0.5…25mA
I
max.
= 0.5…25mA
3.2.3 Sensor Supply
SWTD-1000
+14 V , short circuit proof
+5V , short circuit proof
SWTD-1000 SWTD-1000
Current
[mA]
Voltage
[V]
Voltage
[V]
0 14.29 5.50
1 14.23 5.41
5 14.13 5.30
10 14.04 5.21
15 13.95 5.10
20 13.86 5.03
25 13.79 4.94
30 11.85 4.86
35 10.45 4.78
40 9.32 4.69
45 8.35 4.59
50 7.58 4.20
55 6.98 3.90
60 6.48 3.62
If the current limit activates, the sensor supply must be disconnected to reset
the protection.