Omron H8BM Series, Руководство пользователя

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H8BM H8BM
3
Characteristics
Insulation resistance 100 M
Ω
min. (at 250 VDC) (between current-carrying terminals and exposed non-current-carrying
metal parts)
Dielectric strength 1,000 VAC, 50/60 Hz for 1 min (between current-carrying 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
±
1 kV (between power terminals) and
±
600 V (between input terminals), square-wave noise via noise
simulator (pulse width: 100 ns/1
µ
s, 1-ns rise)
Static immunity Malfunction: 8 kV; destruction: 15 kV
Vibration resistance Destruction:10 to 55 Hz with 0.75 mm single amplitude in three directions
Malfunction:10 to 55 Hz with 0.5 mm single amplitude in three directions
Shock resistance Destruction:294 m/s
2
Malfunction:196 m/s
2
Ambient temperature Operating: –10
°
C to 55
°
C (with no icing)
Storage: –25
°
C to 65
°
C (with no icing)
Ambient humidity Operating: 35% to 85%
Weight Approx. 290 g
Block Diagram
Counter clock
generator
Function
setting circuit
ROM RAM LCD driver
Count
circuits
System clock
generator LCD reference
voltage generator
Key switch
circuits
Input circuits
(count 1 to 9,
reset, re-monitor,
output number
request, I/O inhibit)
Count
circuits One-chip
microcomputer
LCD
Output circuits
(Output 1 to 9,
RUN, machine
stoppage)
LED
Battery
Power failure
detector
Power circuits*
(DC) input
Although the input terminals are electrically insulated from the internal circuit, do not conduct an insulation resistance test on these terminals.
I/O Functions
Inputs
Count (1 to 9) Input count values.
Used as time count input signals when Counter is used as timer.
Maximum counting speed: 30 Hz (minimum signal width: 16.7 ms)
Reset Resets displayed count (timing) value of a specified Counter.
Counter under reset does not operate ad its output is turned OFF.
Reset signal input during re-monitor input restores reset count (timing) value of the specified Counter.
While reset signal is ON, RST indicator lights.
Re-monitor Reset count (timing) value of specified Counter can be re-monitored, and restored by reset input.
While re-monitor signal is ON, RCV indicator lights.
Counter No. select Specifies Counter whose count (timing) value is to be displayed.
I/O inhibit Inhibits count inputs of all Counters.
Turns OFF all forecast outputs, RUN outputs, and machine stoppage outputs.
While I/O inhibit signal is ON, INHB indicator lights.