[. . . ] Self-powered Totalizer
H7E
· Large display with 8. 6-mm character height. · Includes new models with backlight for improved visibility in dimly lit places. (Requires 24-VDC power supply. ) · Black and light-gray cases now available. · Battery is replaceable for Totalizer reuse and conservation of the environment. [. . . ] "rpm", "rps", "s-1" and "min-1" labels are included.
Ratings
Item Supply voltage H7ER-NV@-@ H7ER-NV@-@H H7ER-N-@ Backlight model: 24 VDC (0. 3 W max. ) (for backlight Not required (powered by built-in battery) lit) No-backlight model: Not required (powered by builtin battery) High (logic) level: 4. 5 to 30 VDC Low (logic) level: 0 to 2 VDC (Input impedance: Approx. 4. 7 k) 4-digit models:1 kHz 5-digit models:10 kHz 10 kHz: 0. 05 ms 1 kHz: 0. 5 ms Operating: -10°C to 55°C (with no condensation or icing) Storage: -25°C to 65°C (with no condensation or icing) Operating: 25% to 85% No voltage input Maximum short-circuit impedance: 10 k max. counting speed Minimum signal width
Terminal screw tightening torque 0. 98 N·m max. Ambient temperature Ambient humidity
C-26
Self-powered Tachometer H7ER
Characteristics
Item Insulation resistance H7ER-NV@-@ H7ER-NV@-@H H7ER-N-@ 100 M min. (at 500 VDC) between current-carrying metal parts and exposed non-current-carrying metal metal parts and exposed non-current-carrying metal parts, and between the backlight power supply and parts count input terminals/reset terminals for backlight models 1, 000 VAC, 50/60 Hz for 1 min between current-car- 1, 000 VAC, 50/60 Hz for 1 min between current-carrying metal parts and exposed non-current-carrying rying metal parts and exposed non-current-carrying metal parts and between the backlight power supply metal parts and count input terminals/reset terminals for backlight models 4. 5 kV between current-carrying terminal and exposed non-current-carrying metal parts Square-wave noise generated by noise simulator (pulse width: 100 ns/1 µs, 1-ns rise) ±600 V (Between count input terminals) ±480 V (Between the backlight power supply terminals for backlight models) Static immunity Vibration resistance Shock resistance EMC ±8 kV (malfunction) Malfunction: 0. 15-mm single amplitude at 10 to 55 Hz for 10 min each in 3 directions Destruction: 0. 375-mm single amplitude at 10 to 55 Hz for 2 hrs each in 3 directions Malfunction: 200 m/s2 3 times each in 6 directions Destruction: 300 m/s2 3 times each in 6 directions (EMI) Emission Enclosure: (EMS) Immunity ESD: EN61326 EN55011 Group 1 class B EN61326 EN61000-4-2: 4 kV contact discharge (level 2) 8 kV air discharge (level 3) Immunity RF-interference from AM Radio Waves: EN61000-4-3: 10 V/m (80 MHz to 1 GHz) (level 3) Immunity RF-interference from Pulse-modulated Radio Waves: EN61000-4-3: 10 V/m (900 MHz ± 5 MHz) (level 3) Immunity Conducted Disturbance: EN61000-4-6: 10 V (0. 15 to 80 MHz) (level 3) Immunity Burst: EN61000-4-4: 2 kV power line (level 3) 2 kV I/O signal line (level 4) Front panel: IP66, NEMA4 with waterproof packing Terminal block: IP20 No-backlight model:Approx. 65 g ±500 V (Between count input terminals) Counters
Dielectric strength
Impulse withstand voltage Noise immunity
Degree of protection Weight (see note)
Note: Weight includes waterproof packing and flush mounting bracket.
Reference Value
Item Battery life Value Note 7 years min. with continuous input at 25°C The battery life is calculated according to the conditions in the left column and (lithium battery) therefore is not a guaranteed value. Use these value as reference for maintenance or replacement.
Self-powered Tachometer
H7ER
C-27
Connections
Terminal Arrangement
Bottom view: View of the Tachometer rotated horizontally 180°
Backlight Model
No-backlight Model
Backlight 24 VDC Pulse input
Pulse input
Connections
H7ER Tachometer
Note: Select input transistors according to the following: Dielectric strength of the collector 50 V Leakage current < 100 µA (1 µA for no-voltage input model)
PNP/NPN Universal DC Voltage Input Models With Backlight
Transistor Input
Open collector of or an NPN transistor Open collector of an PNP transistor Backlight 24 VDC* Input
No-voltage Input Model
Transistor Input (Open Collector of an NPN Transistor)
Open collector of an NPN transistor
Input
*Recommended power supply; eg. OMRON S8VS
PNP/NPN Universal DC Voltage Input Models Without Backlight
Transistor Input
Open collector of or an NPN transistor Open collector of an PNP transistor
Input
C-28
Self-powered Tachometer H7ER
Operation
Operating Modes
H7ER Tachometer
Incrementing Operation Within Unit Time (Up)
Count period Count period 0. 25 s (1 s) (1 s) Internal gate
Display refreshed Counter reset
Refresh
Internal count value
Previous count value display
Number display
Display refreshed every 1. 25 s
Display refreshed every 1. 25 s
Nomenclature
Front view
H7ER
Counting speed switch For H7ER-NV1-
Not used
Bottom view
Counting Speed Switch Settings and Unit Label Application
Model Counting speed switch setting (see note)
Front panel
Max. revolutions displayed
Applicable encoder resolution
Applicable unit label
H7ER-NV1-
Concave side
10000 min-1 (default setting)
60 pulse/rev.
"min-1" or "rpm"
1000. 0 min-1
Concave side
600 pulse/rev.
"min-1" or "rpm" "s-1" or "rps" "min-1" or "rpm" "s-1" or "rps"
Terminal block
1000. 0 s-1 1000 min-1 1000 s-1
10 pulse/rev.
No setting is required
Note: Perform switch setting before mounting to a control panel.
Self-powered Tachometer
H7ER
C-29
Counters
Dimensions
Note: All units are in millimeters unless otherwise indicated.
H7ER-N
Panel Cutout Separate mounting
40 min. 45+0. 5 0 22. 2+0. 5 0
Dimensions with Flush Mounting Bracket
Dense mounting
(48 Units - 2. 5) 0
+1. 0
22. 2+0. 5 0
Waterproofing is not possible for dense mounting · When mounting, insert the Counter into the cutout, insert the adapter from the back and push in the Counter while making the gap between the front panel and the cutout panel as small as possible. · When several Counters are installed, ensure that the ambient temperature will not exceed specifications. · The appropriate thickness of the panel is 1 to 5 mm.
Note: A Compact Flush Mounting Bracket (Y92F-35) can also be used. Refer to Accessories for details.
C-30
Self-powered Tachometer H7ER
PCB-mounting Counters
H7E@-N@P
Counters Total counter Max. counting speed 1 kHz No-voltage input 7-segment LCD H7EC-NP 30 Hz H7EC-NLP H7ET-NP Time counter
· Dedicated for use on PCB. · Total Counters and Time Counter available.
Model Number Structure
Model Number Legend
H7E
1
-N
2
P
1. Counting Speed for H7EC Models None: 1 kHz L: 30 Hz
Ordering Information
PC Board-use Counters
Count input Display
Accessory (Order Separately)
Connecting Socket (28-pin) XR2A-2801-N
PCB-mounting Counters
H7E@-N@P
C-31
Specifications
General
Item H7EC-NP Operating mode Mounting method Reset Number of digits Time range Max. counting speed Count/Timer input Display Case color Approved standard Up type Direct mounting on PC Board or mounting on 28-pin socket External reset, Power-OFF reset 8 --1 kHz No-voltage input 7-segment LCD (character height: 8. 6 mm) Transparent UL863, CSA C22. 2 No. 14 30 Hz 7 0. 0h to 999999. 9h --Total Counter H7EC-NLP Time Counter H7ET-NP
Ratings
Item Supply voltage Count/Timer input Reset input Max. counting speed (see note) Minimum signal input width Reset system Ambient temperature Ambient humidity Note: ON/OFF ratio 1:1 H7EC-NP H7EC-NLP 3 VDC (2. 7 to 3. 3 VDC) No voltage input Maximum short-circuit impedance: 10 k max. [. . . ] A SELV power supply is a power supply for which the input and output have double or reinforced insulation, and for which the output voltage is 30 Vrms with 42. 4 V peak or 60 VDC max. (Only the H7E@-NV@-H has a backlight. ) Recommended 24VDC power supply; eg. The terminals for count or timer input and reset input for AC/DC multi-voltage input models have basic insulation.
(1) Battery (3)
(4)
Connect the reset input terminals to a device that does not have exposed current-carrying parts and has basic insulation for 240 VAC.
Others
(5)
If the indicator keeps flickering or is OFF, the internal battery may be close to the end of its service life. In such a case, it is suggested that the battery be replaced.
PCB-mounting Counter
Power Supply
· Use the power supply within the applicable range indicated by the following waveform, while considering the ripple and voltage fluctuations of the circuit power source.
Battery Replacement
To prevent unwanted reset when replacing the battery, connect the new battery before disconnecting the old one. [. . . ]