【 Signal Converter 】 AT-171B Isolator with Built-in Frequency Divider

Frequency division of pulse signals and isolation.


■ A pulse isolator unit for pulse shaping of the pulse input signal using a comparator, isolation with a photocoupler, frequency division, and then pulse output.
■ The trigger level is adjustable to any desired value between 0 and 10V.
■ A possible frequency division ratio over a range 1 to 99.
■ 2 channels built in to the same device.
■ A casing which can be mounted on a DIN rail.
■ For the input, combined use of a nylon connector with sensor power supply and a BNC connector, and for the output, connection with a BNC connector.


 Input signal
Number of channels 2ch
Signal level ±30V
Trigger level 0 to Approx. 10V   Variable with the “TRG” VR on the substrate
Minimum trigger input level 300mVp-p
Input resistance Approx. 1MΩ (for a range of 0 to +12V)
Input frequency 0 to 200kHz
Sensor power supply DC5V 30mA max
Output signal (output switching with substrate switches)
Voltage signal
 Output logic Input signal “H” Voltage output “H”
 Output level “L” level voltage signal of 1.5V or less
“H” level Voltage signal of 3.5V or greater
 Output current 20mA max
Open collector signal
 Output logic Input signal “H” Open collector ON
 Output rating 30V 100mA max
Signal LED Red: indicates the output state
Frequency division
Frequency division ratio Switching from 1 to 99 with a rotary switch on the substrate
Frequency division/direct switching Switching with a switch on the substrate
General specification
Insulation range Input/output/supplied power (no insulation between channels A and B) /casing
Signal insulation Insulation with a photocoupler
Supplied power sources DC24V ±20% 100mA max
Power supply LED Yellow: indicates the power supply is ON
Operating temperature and humidity range 0 to 40ºC/85%RH or less (with no condensation)