H7ER-NV1-B Omron, H7ER-NV1-B Datasheet - Page 9

• Manufacturer Part Number: H7ER-NV1-B
• Description: COUNTER TACH DC VOLT INPUT BLK
• Manufacturer: Omron
• Series: H7ERr

Specifications of H7ER-NV1-B

• Count Rate: 1kHz
• Number Of Digits/alpha: 5
• Input Type: Voltage
• Voltage - Supply: None Required (Battery Included)
• Display Type: LCD Non-Backlit
• No. Of Digits / Alpha: 5
• Meter Function: Tachometer
• Signal Input Type: PNP/NPN Universal DC Voltage
• Meter Signal Input: Voltage
• Ip/nema Rating: IP66 / NEMA 4
• Panel Cutout Height: 22.2mm
• Panel Cutout Width: 45mm
• Counter Supply Voltage: 24VDC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Output Type: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: H7ERNV1B; Z2742

J RESET INPUT AND COUNT INPUT
The H7ER operates using its built-in Battery. If the H7ER is
connected to a device that has +V and OUT terminals connected
with a diode as shown in the circuit diagram, the circuit indicated
by the arrow 1 or 2 will be formed when the device is turned OFF.
As a result, the H7ER may be reset or count by one. Such
devices should not be connected to the H7ER.
If an excessive voltage is applied to the count or reset input
terminals, the internal elements may be damaged.
Ensure that the following voltages are not exceeded:
SPNP/NPN universal voltage input model: 30 VDC
SAC/DC voltage input model:
Do not remove the outer case when voltage is being applied to
the power supply terminals or to the input terminals.
The input for the H7Ej-NFV-j is a high-impedance circuit so
influence from an induced voltage may result in malfunction.
When the input signal wiring is longer than 10 m (stray
capacitance of 120 pF/m, at room temperature), a CR filter or a
bleeder resistor should be connected.
H7ER
At count input:
At reset input:
No-voltage input model: 3 VDC
Count input
or reset input
240 VAC (peak voltage: 338V)
240 VDC
3 VDC (no-voltage input)
9
J COUNT INPUT OR RESET INPUT TO
PNP/NPN Universal DC Voltage Input
Note:
No-voltage Input
Note: 1. The leakage current of the transistor used for input
MORE THAN ONE H7ER COUNTER AT
A TIME
2. The forward voltage of the diode must be as low as
H (Reset ON) level must be 4.5 V minimum.
H =
must be less than 1 µA.
possible (i.e., 0.1 V maximum with an I
the voltage 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
or
or
F
of 20 µA) so
H7ER
or