Omron H7EC-L Self-powered counters subminiature count totalizers require no external power supply Datasheet

Self-Powered Counters
H7EC
Subminiature Count Totalizers
Require No External Power Supply
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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 (H7E❑-P)
Panel adapters for existing cutouts
(order separately from accessories)
Self-powered, 3 V lithium battery
Ordering Information
■ 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
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
30 cps
H7EC-LM
H7EC-BLM
.* For details about matching the counting speed with the appropriate input device, see "Selecting the H7EC Totalizing Counter," located
in Operation section.
■ 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
■ RATINGS
Supply voltage
Input
Maximum counting
speed*
Reset time
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
* ON/OFF ratio 1:1
Approved by the following standards
UL
CSA
CE (EMC)
■ 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)
■ SCREW TERMINAL COUNTERS
M4 Mounting post
No-voltage and DC Input Types
8 mm Mounting nut
44.8
(1.76)
Panel cutout
Mounting
bracket
22.2
11
+0.5
-0
+0.02
(0.87 -0 )
48.9
(1.93)
2.5
45
(1.77
+0.5
-0
+0.02
-0
)
M3.5 screw
terminal
2.5
24
(0.94)
22 (0.87)
4
48 (1.89)
30
43 (1.70)
13
M4 Mounting post
AC/DC Voltage Input Type
8 mm Mounting nut
44.8
(1.76)
Mounting
bracket
Panel cutout
11
2.5
78.9
(3.11)
22.2
(0.87
+0.5
-0
+0.02
)
-0
45
(1.77
+0.5
-0
+0.02
-0
)
M3.5 screw terminal
24
(0.94)
22 (0.87)
4
48 (1.89)
13
60
73 (2.87)
■ WIRE-WRAP TERMINAL COUNTERS
M4 Mounting post
44.8
(1.76)
8 mm Mounting nut
Panel cutout
Mounting
bracket
11
2.5
+0.5
-0
+0.02
(0.87 -0 )
22.2
+0.5
-0
+0.02
(1.77 -0
45
2.5
M4 Mounting
post
Mounting holes and footprint
Wire-wrap terminal
(1 x 1 mm)
22
(0.87)
5-dia. mounting hole
Four 5-dia.
terminal hole
24
(0.94)
10 (0.39)
4
30
56 (2.20)
26
)
48 (1.89)
5
18.5
37 (1.46)
3
H7EC
H7EC
■ PANEL MOUNTING ADAPTERS
Y92F-75
Panel cutout
Two 3.5 mm dia. mounting holes
2-M3
31
(1.22) 24.2 22.2
26
26 (1.02)
45.2
48.2
63
72
(2.83)
45
63
(2.48)
4
Panel cutout
Y92F-76
4.5 mm dia. mounting hole
2-M4
38
(1.50) 27.5
50
(1.97) 38 24.2 22.2
45.2
48.2
60
(2.36)
52.5
(2.07)
4
Y92F-77
Panel cutout
28.8
24.2 22.2
(1.13)
24.8
(0.98)
45.2
4
48.2
48.8
(1.92)
53.8
(2.12)
Connections
■ 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
H7EC
■ DC VOLTAGE INPUT TYPE
1. Contact input (input by a relay or switch contact)
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.
■ 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
■ 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
signal input
Relay or switch
contact input with
some chattering
Do not input contact
signal inputs.
Chattering is counted
as signal input.
Solid-state
signal input
Low-speed
transistor inputs
High-speed transistor
inputs
■ 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
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