The E21 Series is a DIN 72 x 72 preset counter + tachometer with communication capability. This counter is fully programmable and can handle complex manufacturing processes including multi-step operations such as batching, cut to length, packaging, etc. The E21 Series has a dual line 6 digits LED display. The upper line display is a RED LED, 10.0 x 5.5mm figure size that displays Count values (preset, batch, total) and tachometer. The lower line display is a GREEN LED, 8.0 x 4.0mm figure size that displays the Preset values.
The E21 Series is powered by AC100 – 240V and an external power supply of DC12V is available for sensors. This counter can accept Contact, Open Collector or DC Voltage input signals and count modes include Add, subtract, Add/subtract and Quadrature (bidirectional) and count speed is selectable from 30Hz – 8kHZ. The unit has a built-in output relay which actuates when preset values are reached. NPN Open Collector output is also available. Operation modes and Output modes are also programmable to suit any complex process. Reset can be done via the front reset button or remotely.
The front panel has LED indicators for easy identification of what is on the current display. Other programmable features are Prescale, Decimal Point Position, Key Lock and Initial vale at resetting. The E21 Series also has a built in EEPROM memory for count value and settings retention even during sudden power loss. This counter uses a RS-485 Serial interface for data communication. Wiring connections are secured thru the terminal screw connection.
| 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 Duty 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 – +999999 |
| Key Protect | Enable/disable of front reset, preset value change, mode change |
| Memory | E²PROM (20 years, can be used 100,000 times ) |
| Tachometer | 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 prewarn 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 |
| 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 |
