H7EC-N 8 digit Count input Self-powered Totalizer Total Counter SE78
Description: Total Counter, 48 x 24 mm, 8 digit, Increment, S343?Contact output, Max. counting speed: 30 Hz/1 kHz
Feature: Count range 0 to 99999999 Max. counting speed 30 Hz/1 kHz (switching) (ON/OFF ratio 1:1) Minimum input signal width 30 Hz: 16.7 ms 1 kHz: 0.5 ms Input mode Increment (UP) Reset system External and manual reset Input signal Count input, Reset Input method No-voltage input No-voltage input (No-contact input) Short-circuit (ON) impedance: 10 kΩ max. Residual voltage: 0.5 V max. (Actual performance 1.0 V) Open circuit impedance: 750 kΩ min. External reset 20 ms Manual reset 20 ms Digits 8 digit Character height 8.6 mm (Black) Zero suppression Equipped Key protection Key protect Switch Ambient temperature (Operating) -10 to 55 ℃ (with no freezing or condensation) Ambient temperature (Storage) -25 to 65 ℃ (with no freezing or condensation) Ambient humidity (Operating) 25 to 85% Insulation resistance Between current carrying terminals and exposed non-current carrying metal parts: 100 MΩ min. (at 500 VDC) Dielectric withstand voltage Between current carrying terminals and exposed non-current carrying metal parts: 1000 VAC 50/60 Hz 1 min Impulse withstand voltage Between current carrying terminals and exposed non-current carrying metal parts: 4.5 kV Noise immunity Between count input terminals: ±500 V Between reset terminals: ±500 V square-wave noise by noise simulator (pulse width: 100 ns/1 µs, 1-ns rise) Static immunity ±8 kV (malfunction) Vibration resistance Destruction: 10 to 55 Hz, 0.375 mm single amplitude each in 3 directions for 2 h Malfunction: 10 to 55 Hz, 0.15 mm single amplitude each in 3 directions for 10 min Shock resistance Destruction: 300 m/s2, 3 times each in 6 directions Malfunction: 200 m/s2, 3 times each in 6 directions