H7EC Omron, H7EC Datasheet - Page 5

• Manufacturer Part Number: H7EC
• Description: REPLACED BY H7EC-N-B W/Y92S-37
• Manufacturer: Omron

H7EC
1. Contact input (input by a relay or switch contact)
1. Contact input (input by a relay or switch contact)
Operations
Determine the maximum counting speed of the counter by
evaluating the input conditions listed in the table at right.
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.
DC VOLTAGE INPUT TYPE
NO-VOLTAGE INPUT TYPE
SELECTING THE H7EC TOTALIZING COUNTER
MANUALLY RESETTING COUNTERS
(-M SUFFIX MODELS)
Terminals (2) and (4)
are internally connected.
Terminals (2) and (4)
are internally connected.
Counting speed
Contact
signal input
Solid-state
signal input
2. Solid-state input (open collector input of an NPN transistor)
2. Solid-state input (open collector input of an NPN transistor)
20 or 30 cps
Relay or switch
contact input with
some chattering
Low-speed
transistor inputs
Terminals (2) and (4)
are internally connected.
Terminals (2) and (4)
are internally connected.
Input
Reset
1 kcps
Do not input contact
signal inputs.
Chattering is counted
as signal input.
High-speed transistor
inputs
H7EC
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