• Provides up to nine counters or accumulative timers. (Counter and timer functions can be used at the same time.)
• Individual forecast outputs to indicate maintenance timing.
• Pre-forecast display and machine stoppage output provided.
• IP54 oil-proof type at setting area for resistance to oil and water.
• Separate digit keys to easily change settings.
• Compact, short-body: 72 × 72 × 79 mm (DIN).
• Key protection function prevents incorrect operation.
• Multiple outputs: NPN/PNP.
• Directly connectable to 2-wire DC sensors.
• Complies with UL and CSA.
| Model | H8BM-RA/RB | H8BM-RAD/RBD |
|---|---|---|
| Classification | 3-stage setting | 1-stage setting |
| Mounting method | Flush mounting | |
| External connections | Screw terminals | |
| Degree of protection | IP54 oil-proof type (case front) | |
| Input mode | Up | |
| Output mode | F mode (Operation continues even when setting is reached.) | |
| Reset system | External, manual resets | |
| Timer operation | Yes | |
| Input method | Voltage inputs: High and low signal voltages (count, reset, short, counter No. selection, I/O inhibit) |
|
| Control output | No-contact outputs: RUN, forecast, machine stoppage |
No-contact outputs: RUN, forecast |
| Display | Count, preset value, counter number, and error codes displayed on 7-segment LCD Mode, reset, I/O inhibit, re-monitor modes, and key protection displayed on LCD characters Output indication on LCD characters and LEDs |
|
| LCD with backlight | Yes | |
| Built-in counter number | 9 (counters 1 to 9) *1 | |
| Preset stage | 3-stage *2 | 1-stage *3 |
| Digits | Forecast value: 6 digits (999999) Pre-forecast value: -5 digits *4 Machine stoppage: +5 digits *5 |
Forecast value: 6 digits (999999) |
| Time ranges | Forecast value: 99999.9 h (0.1 h or longer)/ 99999.9 s (0.1 s or longer) Pre-forecast value: -9999.9 h/-9999.9 s *4 Machine stoppage: +9999.9 h/+9999.9 s *5 |
Forecast value: 99999.9 h (0.1 h or longer)/ 99999.9 s (0.1 s or longer) |
| Memory backup | EEPROM (Data can be written 100,000 times.), Backup time for power interruption: Approx. 10 years |
|
| Rated supply voltage | 24 VDC |
|---|---|
| Operating voltage range | 85% to 110% of rated supply voltage *1 |
| Power consumption | Approx. 1.7 W (at 26.4 VDC) |
| Max. counting speed | 30 Hz for count inputs 1 to 7, Switchable between 30 Hz and 500 Hz for count inputs 8 and 9 |
| Min. counting input signal width | Count inputs 1 to 7: 16.7 ms (ON:OFF = 1:1) Count inputs 8 and 9: 16.7 ms/1 ms selectable (ON:OFF = 1:1) Reset input: 100 ms max. Short input: 75 ms max. Counter number selection input: 30 ms max. I/O inhibit input: 16.7 ms max. |
| One-shot time | 20 ms *2 |
| Count, reset, short, counter number selection, and I/O inhibit input |
Voltage input High level: 16 to 26.4 VDC Low level: 0 to 3 VDC (input resistance: approx. 2.2 kΩ) |
| Control output | Open-collector output: 100 mA max. at 30 VDC max. |
| Surrounding air temperature | -10 to +55°C (with no icing or condensation) |
| Ambient storage temperature | -25 to +65°C (with no icing or condensation) |
| Ambient operating humidity | 25% to 85% |
| Case color | Dark gray (Munsell 5Y3/1) |
*1. Ripple content: 20% max.
*2. This signal is output as a carry signal when the Counter is used as a total counter.
| Insulation resistance | 100 MΩ min. (at 500 VDC) (between current-carrying terminals and exposed non- current-carrying metal parts) |
|
|---|---|---|
| Dielectric strength voltage | 1,000 VAC, 50/60 Hz for 1 min (between currentcarrying terminals and exposed non- current-carrying metal parts) |
|
| Impulse withstand voltage | 1 kV (between power terminals) 1.5 kV (between current-carrying terminals and exposed non-current-carrying metal parts) |
|
| Noise immunity | ±480 kV (between power terminals) and ±480 V (between input terminals), square-wave noise by noise simulator (pulse width: 100 ns/1 μs, 1-ns rise) |
|
| Static immunity | Malfunction: 8 kV; destruction: 15 kV | |
| Vibration resistance |
Destruction | 10 to 55 Hz with 0.75-mm single amplitude, 2 hours each in three directions |
| Malfunction | 10 to 55 Hz with 0.5-mm single amplitude, 10 minutes each in three directions | |
| Shock resistance |
Destruction | 300 m/s2 3 times each in 6 directions |
| Malfunction | 200 m/s2 3 times each in 6 directions | |
| Weight | Approx. 250 g (Counter only) | |
| Safety standards | UL508 (See note 1.)/CSA C22.2 No.14 EN61326 |
|---|---|
| EMC | (EMI) EN61326-1 (See note 2.) Emission Enclosure: EN61326-1 (EN55011 Group 1 Class A) Emission AC Mains: EN61326-1 (EN55011 Group 1 Class A) (EMS) EN61326-1 (See note 2.) Immunity ESD: EN61326-1 (EN61000-4-2): Contact discharge: 4 kV, air discharge: 8 kV Radiated electromagnetic field immunity: EN61326-1 (EN61000-4-3): 10 V/m (Amplitude modulated, 80 MHz to 1 GHz, 1,400 to 2,000 MHz) 10 V/m (Pulse-modulated, 900 MHz ±5 MHz) Immunity Burst: EN61326-1 (EN61000-4-4): 2 kV power-line, 1 kV I/O signal-line Immunity Surge: EN61326-1 (EN61000-4-5): 1 kV line to line (power line), 2 kV line to ground (power line) Immunity Conducted Disturbance: EN61326-1 (EN61000-4-6): 10 V (0.15 to 80 MHz) |
