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Keyence RC2-21
72-mm□ 5-digit 7-segment LED, One-stage Preset, AC Power Supply. RC2-21. Series: LCD Display Electronic Preset Counter. Series code: RC series
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Description
72-mm□ 5-digit 7-segment LED, One-stage Preset, AC Power Supply. RC2-21. Series: LCD Display Electronic Preset Counter. Series code: RC series
Specification
| Model Name |
72-mm□ 5-digit 7-segment LED, One-stage Preset, AC Power Supply |
|---|---|
| Model Code |
RC2-21 |
| Series Title |
LCD Display Electronic Preset Counter |
| Series Code |
RC series |
| Data Sheet URL | |
| CAD URL |
https://www.keyence.com/products/controls/other-controls/rc/downloads/?mode=cd&modelId=PM_035221 |
| Manuals URL |
https://www.keyence.com/products/controls/other-controls/rc/downloads/?mode=ma&modelId=PM_035221 |
| Model |
RC2-21 |
| Type |
1-level preset counter/timer, DC type |
| Operation method |
Addition, subtraction, addition and subtraction |
| Operation mode |
Overcount, auto reset, rotary, range distinction |
| Return method |
Manual reset, external reset, automatic reset |
| Display power |
7-segment LED (character height: 14 mm) |
| Number of digits |
5-digit display (zero suppression method), -9,999 to 99,999*1 |
| Prescale function - A |
1 to 99 is counted per pulse input |
| Prescale function - B |
1 is counted per 1 to 99,999 pulse inputs |
| Power off memory time |
Approx 10 years (at 20°C 68°F) |
| Input |
Separate, instruction, phase difference |
| Mounting method |
Panel mount (embedding) |
| External calibration input signal |
No-voltage input (with contacts, without contacts [count input, inhibit input, reset input]) |
| Highest counting speed |
With contacts: 50 Hz, without contacts: 500 Hz, 5 kHz, 50 kHz (switchable; 1:1 ON:OFF ratio) |
| Input signal |
― |
| Output |
Relay output: 1c, 250 VAC, 2 A (125 VA or less); maximum NPN open-collector output: 100 mA (40 V or less); residual voltage: 1 V or less; hold/one-shot (switchable) |
| Control output - One-shot output time |
Can be set to an arbitrary value between 0.01 and 9.99 seconds (in units of 0.01 seconds) |
| Control output - Relay |
Relay output: 13 ms (when set to 50 Hz), 4 ms (when set to 500 Hz), 4 ms (when set to 5 kHz), 4 ms (when set to 50 kHz) |
| DC output |
12 VDC ± 10%, 100 mA maximum |
| Rating - Power voltage |
100 to 240 VAC ±10 %, 50/60 Hz |
| Rating - Power consumption |
12VA or less |
| Environmental resistance |
100 MΩ or more (tested with a 500 VDC megger) between all the AC external terminals and the case |
| Noise resistance |
Square wave noise generated by a noise simulator, between the power supply terminals, 1 kV for 1 µs |
| Environmental resistance - Ambient temperature |
0 to +50 °C 32 to 122 °F |
| Environmental resistance - Relative humidity |
35 to 85 % RH (No condensation) |
| Environmental resistance - Withstand voltage |
500 VAC for 1 minute (between all the external terminals and the case) |
| Environmental resistance - Vibration resistance |
10 to 55 Hz, Double amplitude 0.75 mm 0.03", 2 hours in each of the X, Y, and Z directions |
| Environmental resistance - Shock resistance |
100 m/s2, 3 times in each of the X, Y, and Z directions |
| Weight |
Approx. 320 g |
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