Self-powered Totalizer Compact Economical Totalizer with High Visibility Available with Backlit LCD Display • 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. • PNP/NPN universal DC voltage input types now available. • Battery is replaceable for Totalizer reuse and conservation of the environment. • Key-protect switch to prevent faulty reset key operation.
C-8 Self-powered Totalizer H7E
Self-powered Total Counter H7EC Counters • Eight-digits, counting range 0 to 99999999. • Dual input speed: 30 Hz ←→ 1 kHz (except for AC/DC multivoltage input models) Model Number Structure ■ Model Number Legend H7EC - N 1 2 3 1. Count Input None: No-voltage input V: PNP/NPN universal DC voltage input FV: AC/DC multi-voltage input 2. Case Color None: Light gray B: Black 3.
Specifications ■ General Item H7EC-NV-@ H7EC-NV-@H Operating mode Up type Mounting method Flush mounting H7EC-NFV-@ H7EC-N-@ 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- AC/DC multi-voltage input put Display 7-segment LCD with or without backlight, zero suppression (character height: 8.6 mm) (see note 2) Max.
■ Characteristics H7EC-NV-@ H7EC-NV-@H H7EC-NFV-@ H7EC-N-@ Insulation resistance 100 MΩ min. (at 500 VDC) between current-carrying metal parts and exposed non-current-carrying metal parts, and between the backlight power supply terminal and count input terminals/reset terminals for backlight models 100 MΩ min. (at 500 VDC) between 100 MΩ min.
Connections ■ Terminal Arrangement Bottom view: View of the Total Counter rotated horizontally 180° Backlight Model No-backlight Model Backlight 24 VDC Count input Count input Reset input Reset input ■ Connections H7EC Total Counter PNP/NPN Universal DC Voltage Input Model With Backlight 1. Contact Input (Input by a Relay or Switch Contact) Relay Backlight 24 VDC Relay 2.
PNP/NPN Universal DC Voltage Input Model Without Backlight No-voltage Input Model 1. Contact Input (Input by a Relay or Switch Contact) 1. Contact Input (Input by a Relay or Switch Contact) Relay Relay Relay Relay Input Input Reset Reset or Switch Counters Terminals 2 and 4 are internally connected. or Switch or Switch or Switch Note: Use Relays and Switches that have high contact reliability because the current flowing from terminals 1 or 3 is small.
Operation ■ Operating Modes H7EC Total Counter Incrementing Operation (Up) Reset Count input Full-scale (Full-scale −1) Counting display values Nomenclature Front view H7EC Key-protect Switch The Reset Key is not operable while the key-protect switch is set to ON. Counting speed switch For all models except for H7EC-NFV-@. If the counting speed setting is changed, the present value will not be held and so press the Reset Key on the front panel.
Dimensions Note: All units are in millimeters unless otherwise indicated. H7EC-N Counters M3.5 terminal screw Panel Cutout Separate mounting 40 min. 45+0.5 0 22.2+0.5 0 Dimensions with Flush Mounting Bracket Dense mounting +1.0 (48 Units − 2.5) 0 22.2+0.
C-16 Self-powered Total Counter H7EC
Self-powered Time Counter H7ET Counters • Seven digits, time range 0 to 3999d23.9h. • Dual time range: 999999.9 ←→ 3999d23.9h or 999h59m59s ←→ 9999h59.9m Model Number Structure ■ Model Number Legend H7ET - N 1 2 3 4 1. Count Input None: No-voltage input V: PNP/NPN universal DC voltage input FV: AC/DC multi-voltage input 3. Case Color None: Light gray B: Black 4. Display None: 7-segment LCD without backlight H: 7-segment LCD with backlight 2. Time Range None: 999999.9h/3999d23.
Specifications ■ General Item H7ET-NV-@ H7ET-NV-@H H7ET-NFV-@ H7ET-N-@ H7ET-NV1-@ H7ET-NV1-@H H7ET-NFV1-@ H7ET-N1-@ Operating mode Accumulating Mounting method Flush mounting External connections Screw terminals Reset External/Manual reset Display 7-segment LCD with or without backlight, zero suppression (character height: 8.6 mm) (see note 1) Number of digits 7 Time range 0.0h to 999999.9h ←→ 0.0h to 3999d23.9h (switchable with switch) 0s to 999h59min59s ←→ 0.0min to 9999h59.
■ Characteristics H7ET-NV@-@ H7ET-NV@-H@ H7ET-NFV@-@ H7ET-N@-@ Time accuracy ±100 ppm (25°C) Insulation resistance 100 MΩ min. (at 500 VDC) between current-carrying metal parts and exposed non-current-carrying metal parts, and between the backlight power supply and timer input terminals/reset terminals for backlight models 100 MΩ min. (at 500 VDC) between current-carrying metal parts and exposed non-current-carrying metal parts and between timer input terminals and reset terminals 100 MΩ min.
Connections ■ Terminal Arrangement Bottom view: View of the Time Counter rotated horizontally 180° Backlight Model No-backlight Model Backlight 24 VDC Timer input Timer input Reset input Reset input ■ Connections H7ET Time Counter PNP/NPN Universal DC Voltage Input Model With Backlight 1. Contact Input (Input by a Relay or Switch Contact) Relay Relay 2.
PNP/NPN Universal DC Voltage Input Model Without Backlight No-voltage Input Model 1. Contact Input (Input by a Relay or Switch Contact) Relay 1. Contact Input (Input by a Relay or Switch Contact) Relay Relay Input Input Relay Reset Reset or Switch or Switch Counters Terminals 2 and 4 are internally connected. or Switch or Switch 2.
Operation ■ Operating Modes H7ET Time Counter Incrementing Operation (Up) Reset Timer input Internal clock timer value Full-scale (Full-scale −0.1 (1)) Timer display values Nomenclature Front view H7ET Time-range switch If the time-range setting is changed, the present value will not be held and so press the Reset Key on the front panel. Reset Key Reset the count value. Not operable under key-protect. Key-protect Switch The Reset Key is not operable while the key-protect switch is set to ON.
Dimensions Note: All units are in millimeters unless otherwise indicated. Counters H7ET-N Panel Cutout Separate mounting 40 min. 45+0.5 0 Dimensions with Flush Mounting Bracket 22.2+0.5 0 Dense mounting +1.0 (48 Units − 2.5) 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.
C-24 Self-powered Time Counter H7ET
Self-powered Tachometer H7ER Counters • Revolutions displayed up to five digits. • Dual revolution display according to encoder resolution used; 1000 s-1/1000 min-1 or 1000.0 s-1 /1000.0 min-1 • Switchable dual revolution display type available (-NV1 models); extended up to 10000 min-1 Model Number Structure ■ Model Number Legend H7ER - N 1 2 3 4 1. Count Input None: No-voltage input V: PNP/NPN universal DC voltage input 2. Number of Digits None: 4 digits 1: 5 digits 3.
Specifications ■ General Item H7ER-NV-@ H7ER-NV-@H H7ER-N-@ H7ER-NV1-@ H7ER-NV1-@H Operating mode Up type Mounting method Flush mounting External connections Screw terminals, Wire-wrap Terminals (see note 3) Display 7-segment LCD with or without backlight, zero suppression (character height: 8.6 mm) (see note 4) Number of digits 4 Count input PNP/NPN universal DC voltage input Max. counting speed 1 kHz 10 kHz Max.
■ Characteristics H7ER-NV@-@ H7ER-NV@-@H H7ER-N-@ Insulation resistance 100 MΩ min. (at 500 VDC) between current-carrying 100 MΩ min.
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 No-voltage Input Model Transistor Input Transistor Input (Open Collector of an NP
Operation ■ Operating Modes H7ER Tachometer Counters 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 Number display Previous count value display Display refreshed every 1.25 s Display refreshed every 1.
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 +1.0 (48 Units − 2.5) 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.
PCB-mounting Counters H7E@-N@P Counters • Dedicated for use on PCB. • Total Counters and Time Counter available. Model Number Structure ■ Model Number Legend H7E -N 1 P 2 1. Function C: Total Counter T: Time Counter 2. Max. Counting Speed for H7EC Models None: 1 kHz L: 30 Hz Ordering Information ■ PC Board-use Counters Count input Display Total counter Time counter Max.
Specifications ■ General Item Total Counter H7EC-NP Time Counter H7EC-NLP Operating mode Up type Mounting method Direct mounting on PC Board or mounting on 28-pin socket Reset External reset, Power-OFF reset Number of digits 8 Time range --- Max. counting speed 1 kHz Count/Timer input No-voltage input Display 7-segment LCD (character height: 8.6 mm) Case color Transparent Approved standard UL863, CSA C22.2 No.14 H7ET-NP 7 0.0h to 999999.
Connections ■ Terminal Arrangement Reset input 3-VDC external power supply H7ET-NP Reset input Count input Timer input Counters 3-VDC external power supply H7EC-N@P ■ Connections Power Supply and Battery Connections C is a film capacitor, of about 0.1 µF, and is intended to absorb noise induced by the power lines. Battery Connections 3-V battery Keep the wiring between the H7E@-N@P and R2 or C as short as possible (within 50 mm).
Note that the above calculation provides an approximate value, which varies depending on the environment under which the Counter is used and also on the type of capacitors used. Provide some allowance in selecting capacitors. Solid State Input Keep the wiring between the H7E@-N@P and R2 or C as short as possible (within 50 mm).
Accessories (Order Separately) (Common) ■ New H7E (Except for PCB-mounting Counter) The New H7E models are supplied with a mounting bracket (Y92F-34) and nut. Additionally, the Y92F-75/-76/-77B Flush Mounting Adapters shown here allow the New H7E models to be fitted to existing panel cutouts. Y92F-35 Compact Flush Mounting Bracket Single mounting 47.6 2.4 18.6 Dense 4 − × Counters Panel Cutout ounting +1.0 0 26 +0.5 0 22.2 30 min. RST 22.2 +0.5 0 +0.
Y92S-37 Wire-wrap Terminal (Set of Two Terminals) 44.8 Wire-wrap terminal (1 × 1 mm) 22 24 2 48 When using the Wire-wrap Terminal, be sure to use the correct wires and peripheral devices. (The correct wires, bits and sleeves are shown in the table on the right.) Y92S-36 Lithium Battery (3 V) Wire Wrapped state 2-A 2-B Normal AWG24 1-A 1-B Normal AWG26 3-A 1-B Normal 24.5 dia.
Precautions (Common) ■ New H7E (Except for PCB-mounting Counter) !Caution !Caution If a voltage other than the rated one is applied, internal elements may be damaged. Do not use the Counter in the following places: • Locations subject to direct sunlight. • Locations subject to corrosive gases. • Locations subject to dust. Do not use any battery other than the specified one (Y92S-36). Using another battery may cause liquid leakage or breakage, resulting in malfunction or injury.
Count Input, Timer Input or Reset Input to More than One H7E Counter at a Time AC/DC Multi-voltage Input Models • When connecting count/timer input from an SSR to the Counter 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. • PNP/NPN Universal DC Voltage Input or Leakage current: 0.1 mA max.
7. Press the Reset Key before use (not necessary for H7ER-N,-NV,NV1). (5) The count or timer input, reset input, and backlight power supply terminals of the no-voltage input or PNP/NPN universal DC voltage input models (H7E@-N,-N1, H7E@-NV(-H),-NV1(-H)) are not isolated. (2) A SELV power supply conforming to Appendix H of IEC61010-1 should be used for the count or timer input, reset input and backlight power supply terminals.
Inputs PC Board (Bad Example) Do not route the wiring of the count, timer, or reset inputs in the vicinity of, or in parallel to the wiring of high-voltage or inductive load circuits (such as motors and relays). Also, keep the wiring as short as possible. PC Board (Good Example) H7E@-N@P Large-currentconsuming components Placed far away from the power supply. Large-currentconsuming components Wired in parallel with large-currentcarrying components.
