DS-TACHO-4
TECHNICAL REFERENCE MANUAL
5. Technical
5.1. Sensor set-up
Power supply must be perfectly rectified, filtered, and constantly deliver more than 120mA /12V.This is
not an “open collector” output sensor, but PNP output. 152 G7 can support reverse tension, this tension
modifies signal’s Amplitude. 152 G7 TTL Voltage output is 5Vcc , 152 G7 Voltage output is nominal voltage
input -1.5Vcc. If the sensor is connected to the acquisition system the use of dedicated measurement
connectors and matching cables is recommended. Please refrain from extending the cable. Otherwise,
the sensor’s operation may be affected. To confirm that the sensor is live, check if a faint red LED glows
on the small light channel in front of the sensor optical head; You can also use a digital camera to see
the I.R. Light. The brightness of this small red light is independent of the position of the potentiometer.
5.2. Sensor plug-in
V Rating: 12/24Vcc
V Minima: 10Vcc
V Maxima: 30Vcc
I: 120mA/12Vcc
Image 12: Sensor pinout
5.3. Specifications
DS-TACHO-4 V20-1
11/20
Specifications
DS-Tacho4
Supply voltage
9 - 30 VDC
Supply current @ 12 V
100 mA
Max. input frequency
260 kHz
Output
TTL
Rise time
100 ns
Fall time
<1 μs
