Pulse Counter
Reversible Counter (with Calculation Function)
MODEL 472A
- ■ Wide range application fields such as position measurement, level monitoring, flow rate measurement etc.
- ■ 15.2 mm and 7.6 mm LED adoption. Two colors display available: Red and Green.
- ■ 2 inputs calculation function are available. Selection is possible from A, B, A+B, A-B
- ■ Analog and BCD output can be added later.
- ■ Available high speed 120 kHz type（472B）
Standard Specifications
Model Designation
| 472A | - | □ | - | □ | - | □ | - | □ | - | □ | - | □ |
| ① | ② | ③ | ④ | ⑤ | ⑥ |
①Input signal
| Code | Specifications |
|---|---|
| 1 | NPN open collector 2 input |
| 2 | Voltage pulse 2 input |
②Power supply
| Code | Power Source Voltage |
|---|---|
| A | AC 100 to 240 V |
| 9 | DC 24 V |
| C | DC 110 V |
③Sensor power supply
| Code | Specifications |
|---|---|
| 3 | DC 12 V ± 5% 100 mA |
| 5 | DC 24 V ± 5% 60 mA |
④Mounting, Sensor
| Code | Specifications |
|---|---|
| X | null (provided with open collector AL1, AL2) |
| 1 | Photo MOS relay 2 points expanded (AL3, AL4) |
⑤Analog output
| Code | Specifications |
|---|---|
| X | null |
| 04 | DC 0 to 5 V / More than 1 kΩ |
| 05 | DC 0 to 10 V / More than 1 kΩ |
| 09 | DC 1 to 5 V / More than 1 kΩ |
| 29 | DC 4 to 20 mA / Less than 510 Ω |
⑥BCD output
| Code | Specifications |
|---|---|
| X | null |
| DN | Open collector output (NPN) |
General Specifications
| Input signal | 472A-1 | For 472A-1 (no voltage contact or open collector NPN): Residual voltage 3V or less Contact capacity 12V 10mA (In case of relay contact, pay attention to the erroneous count due to chattering.) |
|---|---|---|
| 472A-2 | For 472A-2 (voltage pulse): Input resistance approx. 24 kΩ Threshold value “H” = 4.5 to 30 V “L” = 0 to 2 V |
|
| Counting system | Standard | A: Count value corresponding to IN-A B: Count value corresponding to IN-B A+B: Addition of A and B A-B: Reduction between A and B |
| Phase Differential | Count up when IN-A is advanced from IN-B by 90° Count down when IN-A is lag from IN-B by 90° |
|
| Command Input | Count up or down the IN-A input pulse by the command of IN-B ON/OFF. | |
| Batch-1 & Batch-2 | Selectable when provided with comparator output AL3, AL4. | |
| Counting speed | 10 Hz / 100 Hz / 1 kHz / 10 kHz, switchable by setting | |
| Display range | Both Display-1 and display-2: -999999 to 999999 Display for number of times of over, for both display-1 and display-2: -99 to 99 |
|
| Pulse coefficient (m) | 1×10-6 to 9999 | |
| Pulse division ratio (n) | Number of pulse per rotation 1/1 to 1/1000 | |
| Display value (d) | (d)Display value ＝(p)number of pulse ×(m)Pulse coefficient ×(n)Pulse division ratio | |
| Display accuracy | ±0 digit at pulse coefficient 1 and pulse division ratio 1 | |
| Display | Display-1 side (lower 6 digits): 7 segments display, red/green, character height 15.2 mm Display-1 side (upper 2 digits), Display-2 side: 7 segments display, red, character height 7.6 mm With zero suppress function |
|
| Display cycle | Approx. 100 msec. | |
| Decimal point | Decimal option selectable from 0, 0.0, 0.00 or 0.000 (not external controllable) | |
| Key protection | Function which makes inable to change of setting contents. | |
| Initialization function | Returns to factory shipment setting. | |
| Control input | Pause / Latch | Pause – Counting is prohibited Latch – Counting is continued, display is held |
| Reset | L level input or no voltage contact input | |
| Sensor power supply | DC 12 V ± 5% 100 mA or DC 24 V ± 5% 60 mA | |
| Comparator output | Standard | AL1 to 2 open collector (NPN), Contact capacity DC 30 V 30 mA |
| Option | AL3 to 4 photo MOS relay, Contact capacity AC / DC 150 V 80 mA | |
| Analog output | Option | 0 to 5 V, 0 to 10 V, 1 to 5 V, 4 to 20 mA |
| BCD output | Option | 6 digits Open collector output Output capacity: DC 30 V, 10 mA with a cable (2 m). |
| Compensation for blackout | The totalized value is memorized in non-volatile memory and retained. No count is made during the blackout. The data retaining duration is about 10 years. | |
| Power supply | AC 100 to 240 V 50/60 Hz, DC 24 V, DC 110 V | |
| Power consumption | AC 100 V … Approx. 11 VA AC 200 V … Approx. 15 VA DC 24 V … Approx. 250 mA DC 110 V … Approx. 50 mA |
|
| Operating temperature | 0 to 50°C | |
| External dimensions | 96(W) × 48(H) × 133.3(D) mm | |
| Weight | Approx. 300 g | |
| Protection degree | Front panel IP65, Rear case IP20, Terminal block section IP00 | |
| Mounting method | Depends on exclusive bracket. | |
