H7EC-NFV-B Omron, H7EC-NFV-B Datasheet - Page 30
![COUNTER TOTALIZER 20HZ AC/DC IN](/photos/6/44/64460/h7ec_series_sml.jpg)
H7EC-NFV-B
Manufacturer Part Number
H7EC-NFV-B
Description
COUNTER TOTALIZER 20HZ AC/DC IN
Manufacturer
Omron
Series
H7ECr
Specifications of H7EC-NFV-B
Count Rate
1kHz
Number Of Digits/alpha
8
Input Type
Voltage
Voltage - Supply
None Required (Battery Included)
Display Type
LCD Non-Backlit
Voltage Rating
24 VAC/DC to 240 VAC/DC
Mounting
Flush Mounting Adapter
No. Of Digits / Alpha
8
Digit Height
8.6mm
Counting Speed
20Hz
Operating Temperature Range
-10°C To +55°C
Height
0.94"
Mounting Type
Flush
Panel Cutout Width
45mm
Width
1.89"
Signal Input Type
Voltage
Equipment Type
Self-Powered Count Totalizer
Dimensions
48 mm L x 24 mm W x 48.5 mm H
Mounting Style
Panel
Primary Voltage Rating
24 V to 240 V
Termination Style
Screw
Depth
1.91"
Ip/nema Rating
IP66 / NEMA 4
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Output Type
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
H7EC-FBV
H7ECNFVB
Z867
H7ECNFVB
Z867
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
H7EC-NFV-B
Manufacturer:
Omron Electronics Inc-IA Div
Quantity:
135
Count Input, Timer Input or Reset Input
to More than One H7E Counter at a
Time
• PNP/NPN Universal DC Voltage Input
Note: H (Reset ON) level must be 4.5 V minimum.
• No-voltage Input
Note: 1. The leakage current of the transistor used for input must be
Input and Power Supply
No-voltage Input Models
• Do not impose voltage on the Counter if the Counter is a model that
• When connecting a sensor to the Counter that operates with no-
• When connecting an open collector input from a transistor to the
No-voltage Input and PNP/NPN Universal DC
Voltage Input Models
• The operation of the Counter may be affected if the capacitance of
operates with no-voltage input, otherwise the internal circuit of the
Counter may be damaged.
Do not connect any single input signal in parallel to Counter models
operating with no-voltage input and those operating with voltage
input, otherwise the Counters may malfunction.
voltage input, make sure that the sensor has open collector output.
Counter that operates with no-voltage input, make sure that the
leakage current of the transistor is 1 µA maximum.
input lines exceeds 500 pF (about 10 m, with parallel wires of 2 x
2 mm).
Keep all wires as short as possible. When using shielded wire, line
capacitance may occur.
H =
2. The forward voltage of the diode must be as low as possible
less than 1 µA.
(i.e., 0.1 V maximum with an I
between terminals 3 and 4 will be 0.5 V when the reset input
is ON.
4.7 (kΩ)/N + V
4.7 (kΩ)/N + R
Sensor
1 2
F
of 20 µA) so that the voltage
3 4
or
or
or
AC/DC Multi-voltage Input Models
• When connecting count/timer input from an SSR to the Counter
Backlight Power Supply
• To reduce variation in the brightness of the backlight when using
• When connecting the DC power supply for the backlights, be sure
Input Verification with the H7ET Time
Counter
(When the time range is not set to 0s to
999h59min59s)
The decimal point of the LCD blinks every other second while an
input signal is being applied. If the decimal point is not blinking, the
input signal is not being received correctly. Check the input signal
connections.
Unit Label for Time Counter and
Tachometer
A unit label has been packed with the Counter. Use in accordance
with the application.
Battery Replacement
Remove the wiring when replacing the Battery. Do not come in con-
tact with any item to which high voltage is being applied. Doing so
may result in electric shock.
Before changing the Battery, the person should ensure that they are
not carrying any static electric charge.
Procedure for replacing the Battery (refer to the diagrams below):
1. Using the tool, pry open the lift-tab on the case. (1)
2. Pull the body out of its outer case. (2)
3. Lift the Battery up by the edge and remove it. (3)
4. Wipe the back of the new Battery before inserting it.
5. Ensure that the + and – terminals are correctly oriented.
6. After replacing the Battery, re-insert the body into its case. (4)
that operates with AC/DC voltage input, use OMRON’s G3TA-IA/ID
SSR (for DC) whose leakage current is 0.1 mA max. or connect a
bleeder resistor in parallel to the input circuit of the Counter.
more than one H7E with a backlight, use the same power supply for
all the backlights.
to connect the polarities correctly.
When removing the Battery, do not come in contact with the dis-
play area or any internal parts.
Check that the case is securely held in by the lift-tab.
*Bleeder resistor
or
or
The voltage between terminals 1 and 2 must be
1.5 V maximum when the SSR is OFF.
Leakage current:
0.1 mA max.
or
H7E@-N@P
30