H7EC

Self-Powered Counters Subminiature Count Totalizers Require No External Power Supply s s s s s s s H7EC Subminiature 48 x 24 mm (1.89 x .94 in) Improved noise immunity Screw terminal and wire-wrap types available AC, DC, and no-voltage input Printed circuit board version (H7Eu-P) Panel adapters for existing cutouts (order separately from accessories) Self-powered, 3 V lithium battery Ordering Information s COUNT TOTALIZERS Operating mode Display Reset system Number of digits UP type LCD digital, 5.1 mm (0.2 in) high External (electrical) reset 7 AC/DC DC voltage input Count input voltage input Max. counting speed* 20 cps 1 kcps 30 cps Terminals Wire-wrap — H7EC-V H7EC-VL Screw H7EC-FBV H7EC-BV H7EC-BVL No-voltage contact input External/Manual reset 6 DC voltage input No-voltage contact input 30 cps H7EC-LM H7EC-BLM 1 kcps 30 cps 1 kcps 30 cps 1 kcps H7EC H7EC-L H7EC-VM H7EC-VLM H7EC-M H7EC-B H7EC-BL H7EC-BVM H7EC-BVLM H7EC-BM . For details about matching the counting speed with the appropriate input device, see "Selecting the H7EC Totalizing Counter," located * in Operation section. s ACCESSORIES Description Panel adapters Fits 26 x 45 mm (1.02 x 1.77 in.) rectangular cutout Fits 27.5 x 52.5 mm (1.1 x 2.07 in.) rectangular cutout Fits 24.8 x 48.8 mm (0.98 x 1.92 in.) rectangular cutout Part number Y92F-75 Y92F-76 Y92F-77 H7EC H7EC Specifications s RATINGS Supply voltage Not required (powered by built-in battery) AC/DC voltage input: 24 to 240 VAC ± 10%, 50/60 Hz, or 6 to 240 VDC ± 10% at "High" (logic) level 0 to 1.5 VAC ± 10%, 50/60 Hz, or 0 to 2 VDC ± 10% at "Low" (logic) level DC voltage input: 4.5 to 30 VDC at "High" (logic) level 0 to 2 VDC at "Low" (logic) level No-voltage input: Maximum short-circuit impedance: 10 kΩ max. Short-circuit residual voltage: 0.5 V max. Minimum open impedance: 500 kΩ min. 1 kcps: Minimum signal width 0.5 ms 30 cps: Minimum signal width 16.7 ms 20 cps: Minimum signal width 25 ms External and manual reset types (6-digit models): 20 ms reset signal External reset types (7-digit models): 20 ms reset signal Input Maximum counting speed* Reset time * ON/OFF ratio 1:1 Approved by the following standards UL CSA CE (EMC) s CHARACTERISTICS Insulation resistance Dielectric strength Vibration Shock Ambient temperature Humidity Battery life Weight 100 MΩ min. at 500 VDC 1,000 VAC 50/60 Hz for 1 minute between current-carrying terminals and exposed non-current-carrying metal parts Mechanical durability: 10 to 55 Hz; 0.75 mm (0.03 in) double amplitude Malfunction durability: 10 to 55 Hz; 0.3 mm (0.02 in) double amplitude Mechanical durability: Approx. 30 G Malfunction durability: Approx. 10 G Operating: -10° to 55°C (14° to 131°F) Storage: -25° to 65°C (-13° to 149°F) Operating: 35 to 85% RH 30 cps type: 7 years min. of continuous input 1 kcps and 20 cps types: 6 years min. of continuous input AC/DC voltage input type: Approx. 90 g (3.18 oz) DC voltage and No-voltage input types: Approx. 60 g (2.12 oz) (including mounting bracket) Timing Chart 2 H7EC H7EC Dimensions Unit: mm (inch) s SCREW TERMINAL COUNTERS M4 Mounting post No-voltage and DC Input Types 44.8 (1.76) 8 mm Mounting nut Mounting bracket 11 48.9 (1.93) 22.2 +0.5 -0 +0.02 (0.87 -0 ) Panel cutout 2.5 45 (1.77 +0.5 -0 +0.02 -0 ) 2.5 M3.5 screw terminal 24 (0.94) 48 (1.89) 4 30 43 (1.70) 13 22 (0.87) M4 Mounting post AC/DC Voltage Input Type 44.8 (1.76) 8 mm Mounting nut Mounting bracket 11 +0.5 -0 Panel cutout 2.5 78.9 (3.11) 22.2 (0.87 +0.02 ) -0 45 (1.77 +0.5 -0 +0.02 -0 ) M3.5 screw terminal 24 (0.94) 22 (0.87) 48 (1.89) 4 60 73 (2.87) 13 s WIRE-WRAP TERMINAL COUNTERS M4 Mounting post 44.8 (1.76) 8 mm Mounting nut Panel cutout Mounting bracket 11 2.5 22.2 +0.5 -0 +0.02 (0.87 -0 ) +0.5 -0 +0.02 (1.77 -0 45 ) 2.5 M4 Mounting post Wire-wrap terminal (1 x 1 mm) 22 (0.87) 24 (0.94) Mounting holes and footprint 5-dia. mounting hole Four 5-dia. terminal hole 10 (0.39) 5 18.5 37 (1.46) 4 30 56 (2.20) 26 48 (1.89) 3 H7EC s PANEL MOUNTING ADAPTERS Y92F-75 Two 3.5 mm dia. mounting holes H7EC Panel cutout 2-M3 31 (1.22) 24.2 22.2 26 26 (1.02) 45.2 48.2 63 72 (2.83) 4 45 63 (2.48) Y92F-76 4.5 mm dia. mounting hole Panel cutout 2-M4 50 (1.97) 38 24.2 22.2 38 (1.50) 27.5 45.2 48.2 60 (2.36) 4 52.5 (2.07) Y92F-77 Panel cutout 28.8 24.2 22.2 (1.13) 24.8 (0.98) 45.2 48.2 53.8 (2.12) 4 48.8 (1.92) Connections s AC/DC VOLTAGE INPUT TYPE 1. Contact input (input by relay or switch contact) 2. Solid-state input (open collector input of an NPN transistor) Terminals (2) and (4) are internally insulated. Terminals (2) and (4) are internally insulated. 4 H7EC s DC VOLTAGE INPUT TYPE 1. Contact input (input by a relay or switch contact) H7EC 2. Solid-state input (open collector input of an NPN transistor) Input Reset Terminals (2) and (4) are internally connected. Terminals (2) and (4) are internally connected. s NO-VOLTAGE INPUT TYPE 1. Contact input (input by a relay or switch contact) 2. Solid-state input (open collector input of an NPN transistor) Terminals (2) and (4) are internally connected. Terminals (2) and (4) are internally connected. Operations s SELECTING THE H7EC TOTALIZING COUNTER Determine the maximum counting speed of the counter by evaluating the input conditions listed in the table at right. Counting speed Contact signal input 20 or 30 cps Relay or switch contact input with some chattering Low-speed transistor inputs 1 kcps Do not input contact signal inputs. Chattering is counted as signal input. High-speed transistor inputs Solid-state signal input s MANUALLY RESETTING COUNTERS (-M SUFFIX MODELS) Counters with "-M" suffixes offer the option of manual or external resetting. To manually reset the counter, press the reset button located to the left of the display window. To prevent an accidental reset, lock the reset button by sliding the button downward, without depressing it. A small "click" sound may be heard, both when locking and unlocking the reset button. Slide the button up to unlock. 5