self-powered counters H7EC subminiature count totalizers require no external power supply n subminiature 48 x 24 mm (1.89 x .94 in) n improved noise immunity n screw terminal and wire-wrap types available n ac, dc, and no-voltage input n printed circuit board version (h7e q -p) n panel adapters for existing cutouts (order separately from accessories) n self-powered, 3 v lithium battery operating mode up type display lcd digital, 5.1 mm (0.2 in) high reset system external (electrical) reset external/manual reset number of digits 7 6 ac/dc dc voltage input no-voltage dc voltage input no-voltage count input voltage contact input contact input input max. counting speed* 20 cps 1 kcps 30 cps 1 kcps 30 cps 1 kcps 30 cps 1 kcps 30 cps terminals wire-wrap H7EC-v H7EC-vl H7EC H7EC-l H7EC-vm H7EC-vlm H7EC-m H7EC-lm screw H7EC-fbv H7EC-bv H7EC-bvl H7EC-b H7EC-bl H7EC-bvm H7EC-bvlm H7EC-bm H7EC-blm ordering information . n count totalizers * for details about matching the counting speed with the appropriate input device, see "selecting the H7EC totalizing counter," located in operation section. description part number fits 26 x 45 mm (1.02 x 1.77 in.) rectangular cutout y92f-75 panel adapters fits 27.5 x 52.5 mm (1.1 x 2.07 in.) rectangular cutout y92f-76 fits 24.8 x 48.8 mm (0.98 x 1.92 in.) rectangular cutout y92f-77 n accessories
H7EC H7EC 2 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 input 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 k w max. short-circuit residual voltage: 0.5 v max. minimum open impedance: 500 k w min. maximum counting 1 kcps: minimum signal width 0.5 ms speed* 30 cps: minimum signal width 16.7 ms 20 cps: minimum signal width 25 ms reset time external and manual reset types (6-digit models): 20 ms reset signal external reset types (7-digit models): 20 ms reset signal * on/off ratio 1:1 n ratings specifications timing chart insulation resistance 100 m w min. at 500 vdc dielectric strength 1,000 vac 50/60 hz for 1 minute between current-carrying terminals and exposed non-current-carrying metal parts vibration 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 shock mechanical durability: approx. 30 g malfunction durability: approx. 10 g ambient temperature operating: -10 to 55 c (14 to 131 f) storage: -25 to 65 c (-13 to 149 f) humidity operating: 35 to 85% rh battery life 30 cps type: 7 years min. of continuous input 1 kcps and 20 cps types: 6 years min. of continuous input weight 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) n characteristics approved by the following standards ul csa ce (emc)
H7EC H7EC 3 dimensions unit: mm (inch) n screw terminal counters ac/dc voltage input type 2.5 11 2.5 30 13 22 (0.87) 4 13 m3.5 screw terminal 4 2.5 11 11 2.5 5 18.5 30 2.5 4 panel cutout panel cutout panel cutout +0.02 -0 ) (0.87 22.2 +0.5 -0 mounting bracket mounting bracket m4 mounting post no-voltage and dc input types m4 mounting post 8 mm mounting nut 8 mm mounting nut mounting bracket 8 mm mounting nut m4 mounting post 78.9 (3.11) 43 (1.70) n wire-wrap terminal counters 60 73 (2.87) 22 (0.87) 22.2 +0.5 -0 45 +0.02 -0 ) (0.87 22.2 +0.5 -0 +0.02 -0 ) (1.77 +0.5 -0 45 m4 mounting post wire-wrap terminal (1 x 1 mm) 10 (0.39) 37 (1.46) mounting holes and footprint four 5-dia. terminal hole 5-dia. mounting hole 56 (2.20) 48 (1.89) 48 (1.89) 44.8 (1.76) 48.9 (1.93) 24 (0.94) 48 (1.89) +0.02 -0 ) +0.02 -0 ) (0.87 (1.77 +0.5 -0 +0.5 -0 45 (1.77 +0.02 -0 ) m3.5 screw terminal 44.8 (1.76) 44.8 (1.76) 24 (0.94) 24 (0.94) 22 (0.87) 26
H7EC H7EC 4 n panel mounting adapters y92f-77 panel cutout panel cutout y92f-75 two 3.5 mm dia. mounting holes 22.2 24.2 45.2 48.2 72 (2.83) 63 48.2 45.2 60 (2.36) 38 24.2 22.2 4.5 mm dia. mounting hole y92f-76 4 27.5 2-m4 4 45 4 2-m3 63 (2.48) connections n 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) panel cutout terminals (2) and (4) are internally insulated. terminals (2) and (4) are internally insulated. 31 (1.22) 26 52.5 (2.07) 53.8 (2.12) 28.8 (1.13) 50 (1.97) 26 (1.02) 38 (1.50) 48.2 45.2 24.8 (0.98) 48.8 (1.92) 24.2 22.2
H7EC H7EC 5 n dc voltage input type n 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) 1. contact input (input by a relay or switch contact) 2. solid-state input (open collector input of an npn transistor) operations n 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 20 or 30 cps 1 kcps contact relay or switch do not input contact signal input contact input with signal inputs. some chattering chattering is counted as signal input. solid-state low-speed high-speed transistor signal input transistor inputs inputs n 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. terminals (2) and (4) are internally connected. terminals (2) and (4) are internally connected. terminals (2) and (4) are internally connected. terminals (2) and (4) are internally connected. input reset
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