Omron H7EC Manual page 4

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