Product Made in Japan
Manufacturer: Line Seiki
Model: MDR Series

MDR Series Electronic Preset Counter

Model

Models	Digits	Preset Level	Preset Digits	Preset Range	Memory	Option	Weight
MDR-144M	4	1	4	1 – 9999	O	BCD Output	950 g
MDR-166M	6		6	1 – 999999
MDR-244M	4	2	4	1 – 9999			1050 g
MDR-266M	6		6	1 – 999999

Description

The MDR (Preset) Series is a 4 or 6 digits, Single or Dual level bi-directional preset counter in a DIN 72 x 144 panel size (Panel Cut-out size: 68 x 140mm).  It has a RED LED display with a digit figure size of 14.22 x 8.13mm.  This is a very simple counter but highly reliable.  This counter has a high count speed of 5kHz maximum and can accept Contact or Non-Contact pulse input. The counter offers two modes: Add/Subtract or Quadrature. It comes with a built-in contact relay and an NPN Open collector. When the counter hits the preset value, this setup sends out an output signal. Preset value can easily be set via the front panel digital switches and there are LED indicators that show the state of the unit.  The MDR (Preset) Series allows you to choose between two power sources: AC100/110V or AC200/220V. Additionally, it provides an external power supply of DC12V specifically for sensors. When it comes to resetting the unit, you have the option to do it remotely or through an auto-reset function. Memory is also available for count value retention even during power loss.

Specification

Models	MDR-144M	MDR-166M	MDR-244M	MDR-266M
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	90°Quadrature (directional) / Add/Subtract
Count Speed	Contact Input : 20 Hz max. / Non-Contact Input : 5000 Hz max.
Pulse Width	Contact Input : 25 msec min. / Non-Contact Input : 100 msec min.
Make (Duty)	1 : 1
Output Type	Contact output : Relay Type 1C (AC230V, 2.5A max. load) * for each output Non-contact output : NPN open collector (DC30V, 100mA maximum)
Output Display	Turns ON during output time
Output Time	One-shot mode: 0.1 – 3sec (adjustable) Overrun mode: Infinite		Preset Level 1: Infinite Preset Level 2: Infinite or 0.1 – 3sec (adjustable)
Reset	Remote reset (100msec min.) Auto-reset : One-shot reset (Output relay : 0.1 – 3sec reset)
Memory	E²PROM (10 years. retention, 10,000 times)
Power Source for Sensor	DC12V 100mA maximum
Input Impedance	5kΩ
Power Source	AC100/110V or AC200/220V ±10%, 50/60 Hz
Power Consumption	Approximately 5.5VA
Operating Temperature	0 – 40°C (non-freezing)
Operating Humidity	45 – 85%RH (non-condensing)
Hi-pot Test	AC1500V (1minute)
Dielectric Test	20MΩ min. (DC500V megger)
Connection	M3 Terminal Screw

Rear Terminals and Wiring

NOTE:

• For 1 level preset models (MDR-144M and MDR-166M), refer to Output 2 in the diagram as the main output.
• Both terminals 12 and 13 are GND. The terminal 13 can be used in replacement of terminal 12 as described in the connection diagrams below.

Connection

Caution

1. Avoid sending a voltage signal to the Contact Input and Remote Reset terminals to prevent internal damage.
2. Choose either Contact or Non-contact input; you can’t use both at the same time.
3. If there’s a power failure, the LED display turns off, and the counter won’t recognize inputs or resets.
4. Connect terminals 11 and 12 to activate the memory feature. If you’re turning off the counter for a while, disconnect these terminals to save the internal battery, which charges when the counter is powered on.
5. You can’t input signals to both Add and Subtract inputs at the same time.
6. For the Input and Reset terminals, use shielded leadwires. Also, keep power source lines away from Input and Reset lines for optimal performance.

Operating Mode

Application

Product Counting

Counters can be used for counting, sorting and packaging various products.

Cut-to-length operation

Counters and CT1/CS pulse generators can be used for cut-to-length operation for textiles, paper, plastic films and so on.

Length Measuring

Counters and rotary encoders can be used for measuring the length of textiles, paper, plastic film and so on.

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