Preset Counter – MD Series

Thương hiệu : Line Seiki

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The MD (Preset) Series is a 4 digits LED single level preset counter in a DIN 72 x 72 panel size (Panel Cut-out size: 68 x 68mm).  This is a very simple additive preset counter but functional.  With a count speed of 1kHz maximum, this counter accepts Contact or Non-Contact pulse input.  It is equipped with an internal contact relay and NPN Open collector, which sends an output signal when the preset value is reached.  Preset value can easily be set via the front panel digital switches and there are LED indicators which shows the state of the unit.  The MD Series is powered by AC100/110V or AC200/220V, selectable, and it has an external power supply of DC12V for sensors.  The unit can only be reset remotely, auto reset or by power reset.  Memory is optional.

Models Digits Preset Preset Digits Preset Range Memory Weight
MD-144 4 1 4 1 – 9999 540 g
MD-144M 4 1 – 9999 O 560 g
Models MD-144 MD-144M
Display Red LED, 14.22 x 8.13mm (Zero Suppress)
Input Method /
Signal
Contact Input : Relay, Microswitch
Non-Contact Input : L : 0 – 1V ; H : 4.5 – 27
Count Mode Additive only
Count Speed Contact Input : 20 Hz max. / Non-Contact Input : 1000 Hz max.
Pulse Width Contact Input : 25 msec min. / Non-Contact Input : 0.5 msec min.
Make (Duty) 1 : 1
Output Type Contact output : Relay Type 1A only (AC250V, 0.5A / DC30V, 2A maximum Load)
Non-contact output : NPN open collector (DC30V, 100mA maximum)
Output Display Turns ON during output time
Output Time One-shot mode : 0.2 / 1sec
Overrun mode : Infinite
Reset Remote reset (100msec min.)
Auto reset : One-shot reset
(Output relay – 0.2s /1s reset)
Memory None E²PROM (10 years. retention, 10,000 times)
Power Source for Sensor DC12V 30mA maximum
Input Impedance 5kΩ
Power Source AC100/110V or AC200/220V ±10%, 50/60 Hz
Power Consumption Approximately 4VA
Operating Temperature -5 – +40°C (non-freezing) 0 – 40°C (non-freezing)
Operating Humidity 45 – 85%RH (non-condensing)
Hi-pot Test AC1500V (1 minute)
Dielectric Test 20MΩ min. (DC500V megger)
Connection M3 Terminal Screw