Electronic Counters, Japan, Line Seiki, Measurement
Line Seiki E21 Series Communication Preset Counter
Product Made in Japan
Manufacturer: Line Seiki
Model: E21 Series
E21 Series Communication Preset Counter
Model
Description
The E21 Series is a flexible DIN-sized 72 x 72 preset counter and tachometer that can communicate with other devices. It offers full programmability and can manage complex manufacturing processes, including multi-step operations like batching, cut-to-length, and packaging.
This series features a dual-line LED display with six digits. The upper line uses RED LEDs with a figure size of 10.0 x 5.5mm to display Count values (preset, batch, total) and Tachometer readings. The lower line uses GREEN LEDs with figures measuring 8.0 x 4.0mm to display the Preset values.
The E21 Series operates on AC100 – 240V power and has the option to connect an external DC12V power supply for sensors. It can accept Contact, Open Collector, or DC Voltage input signals and offers various counting modes, including Addition, Subtraction, Addition/Subtraction, and Quadrature (bidirectional). Counting speed is adjustable from 30Hz to 8kHz.It includes an integrated output relay that activates when preset values are met, and it also provides an NPN Open Collector output. You can tailor the operation and output modes to fit intricate processes. You can reset it using the front reset button or remotely.
The front panel features LED indicators for easy identification of the current display. Other programmable features include Prescale, Decimal Point Position, Key Lock, and Initial Value at resetting. The E21 Series has a built-in EEPROM memory that stores count values and settings even if there’s a sudden power loss. It utilizes an RS-485 Serial interface for data communication, and wiring connections are firmly established with terminal screws.
Specification
| Display | Upper Display: Red LED 10.00 x 5.5
Lower Display: Green LED 8.00 x 4.0 |
| No. of Digits | Upper Display (Preset Counter, Totalizer, Tachometer, Batch Counter) : 6 digits ;
Lower Display (Preset Value) : 6 digits |
| Setting Range | Preset Value (P1 – P4) : -99999 – +999999 ;
Prewarn Value (PW), Batch Preset Value (PB) : 0 – 99999 |
| Count Input | Open Collector (Sink current: approx. 10mA max.）L: 4V max
Voltage (Input impedance 7KΩ) L : 0 – 4V H: 6 – 30V (Available to duplex wire DC sensor) |
| Count Speed | 30 Hz (Pulse width 16msec Dut 1:1)
1 kHz (Pulse width 500µsec Duty 1:1) 5 kHz (Pulse width 100µsec Duty 1:1) 8 kHz (Pulse width 62.5µsec Duty 1:1) |
| Count Mode | Add/Subtract (Add/Subtract individual input, 90°quadrature input) |
| Prescale | Multiplying : 0.00001 to 999.999 / Dividing : 1 to 9999 ( 0 setting is not available ) |
| Decimal Point | 0.0, 0.00, 0.000, 0.0000, 0.00000, No decimal point |
| WRITE (Setting of initial value at resetting) | -99999 to +999999 |
| Ket Protect | Enable/disable of front reset, preset value change, mode change |
| Memory | E²PROM (20 years, can be used 100,000 times ) |
| Tachometaer | 1 / Tau Standard Sampling (measuring accuracy: ±0.1%) |
| Communication | RS-485 Serial Interface
Read count value, preset value, or count start value / Read the condition of reset and preset output / Count inhibition and cancellation of count inhibition |
| Reset | Front panel reset via the RESET key, Remote reset via the external reset, Auto-reset *reset function is selectable |
| Operation | Overrun/Auto-reset/Equal/Upper-Lower Limit.
(Model with prewarning function-no Upper-Lower Limit, with Batch Function-no Upper-Lower Limit/Equal) |
| Output Type | E21-101 / E21-201 / E21-401 Relay output (Type 1C) : load of 250V AC 3A / 30V DC 3A resistive load * Red Lamp should turn ON at the same time of output.E21-111/ E21-211 / E21-411 Open Collector Output 30V DC 100mA max. * Red Lamp should turn ON at the same time of output. |
| Output Delay | Relay output 30Hz: 20 ms max. 1kHz, 5kHz, 8kHz: 6ms max
Open Collector Output 30Hz: 15 ms max. 1kHz, 5kHz, 8kHz: 1ms max |
| Output | One-Shot Pulse, Hold |
| Output Time | 10 – 9990 msec (can be set in 10 msec minimum increments) |
| Sensor Power Supply | DC12V ±10% 100mA maximum |
| Power Supply | AC100 – 240V -15% / +10%, 50 – 60Hz |
| Operating Temperature | -10 – +50°C (non-freezing) 35 – 85%RH (non-condensing) |
| Weight | Approx. 280g |
Dimension
Wiring & Terminals
Application
Counters are versatile tools that have multiple applications, including counting, sorting, and packaging various products.
They are also valuable for precise cut-to-length operations in industries like textiles, paper, and plastic films, where they work in conjunction with CT1/CS pulse generators.
Additionally, counters, when combined with rotary encoders, are effective for accurately measuring the length of materials such as textiles, paper, and plastic film.
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