C-10
Self-powered Total Counter
H7EC
Specifications
■
General
Note: 1.
Separately ordered Wire-wrap Terminals (Y92S-37) are required.
2.
Only PNP/NPN universal DC voltage input models (-H models) have a backlight.
■
Ratings
Note:
ON/OFF ratio 1:1
Item H7EC-NV-
@
H7EC-NV-
@
H
H7EC-NFV-
@
H7EC-N-
@
Operating mode
Up type
Mounting method
Flush mounting
External connections
Screw terminals, optional Wire-wrap Terminals (see note 1)
Reset
External/Manual reset
Number of digits
8
Count input
PNP/NPN universal DC voltage in-
put
AC/DC multi-voltage input No-voltage input
Display
7-segment LCD with or without backlight, zero suppression (character height: 8.6 mm) (see note 2)
Max. counting speed
30 Hz/1 kHz 20 Hz 30 Hz/1 kHz
Case color
Light gray or black (-B models)
Attachment
Waterproof packing, flush mounting bracket
Approved standard
UL863, CSA C22.2 No.14, Lloyds
Conforms to EN61010-1/IEC61010-1 (Pollution degree2/overvoltage category
III
)
Conforms to VDE0106/P100
Item H7EC-NV-
@
H7EC-NV-
@
H
H7EC-NFV-
@
H7EC-N-
@
Supply voltage
Backlight model: 24 VDC (0.3 W max.)
(only for backlight)
No-backlight model: Not required
(powered by built-in battery)
Not required (powered by built-in battery)
Count input
High (logic) level: 4.5 to 30 VDC
Low (logic) level: 0 to 2 VDC
(Input impedance: Approx. 4.7 k
Ω
)
High (logic) level: 24 to 240 VAC/VDC,
50/60 Hz
Low (logic) level: 0 to 2.4 VAC/VDC, 50/
60 Hz
No voltage input
Maximum short-circuit impedance:
10 k
Ω
max.
Short-circuit residual voltage: 0.5 V max.
Minimum open impedance: 750 k
Ω
min.
Reset input
No voltage input
Maximum short-circuit impedance:
10 k
Ω
max.
Short-circuit residual voltage: 0.5 V max.
Minimum open impedance: 750 k
Ω
min.
Max. counting
speed (see note)
30 Hz or 1 KHz
(Switchable with switch)
20 Hz 30 Hz or 1 KHz
(Switchable with switch)
Minimum signal
width
20 Hz: 25 ms
30 Hz: 16.7 ms
1 KHz: 0.5 ms
Reset system
External reset and manual reset: Minimum signal width of 20 ms
Terminal screw
tightening torque
0.98 N·m max.
Ambient tempera-
ture
Operating: -10
°
C to 55
°
C (with no condensation or icing)
Storage: -25
°
C to 65
°
C (with no condensation or icing)
Ambient humidity
Operating 25% to 85%
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