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

Operating Instructions SWT-1000 DYNALCO
SWT-1000.r2.0609 4
2.2.2 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
Sensor supply +14 V, max. 35 mA short circuit proof.
If the current limit activates, the sensor supply must be disconnected to
reset the protection.
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
2.2.3 Binary Input and Push Button
Use For external selection of Parameter set A or B.
• Logic 1 = Parameter set A (Relay control A)
• Logic 0 = Parameter set B (Relay control B)
Levels Logic 1 = V > +3.5V
Logic 0 = V < +1.5V
Reference Sensor supply 0V
Max voltage 36V
Input resistance R
min
= 10k
Ω
Circuit Internal pull up resistance to 5V
Shorting the binary input to the sensor 0V
creates logic 0.
5 volts SWT-1000
parameter set A B
analysis
+Bin
OVS
pushbutton