Omron H3CR-A Manual page 142

H3FA
Installation
Connection
Note: Do not apply voltage to any terminal other than the power supply terminals. Otherwise, the internal circuitry may be damaged.
H3FA-A, H3FA-B, H3FA-SA, H3FA-SB
Standard Operation (ON-delay Operation)
When the set time has elapsed subsequent to the power application
(connect power to terminals A and X, and short-circuit terminals M
and O when a 12/24 VDC-operated model is used with a 12 VDC
power supply), output is produced.
When connecting an external resistor to the time unit, connect it be-
tween terminals U and W, and open terminals U and V. Refer to "Ex-
ternal Resistor and Operate Time" on page 140.
When operating an external reset input contact short-circuit termi-
nals A and D. In this case, the current that flows from terminal D to
terminal A is approx. 0.1 mA. Therefore, use of a high-reliability con-
tact is recommended for the reset input.
Contact Output (Top View)
Solid-state Output (Top View)
When using the 12/24 VDC operated timer with a 24 VDC
power supply, open terminals 13 and 15.
142
Integration Operation
By opening the terminals connected to the internal variable resistor
(U and V), or external resistor (U and W), timer operation can be in-
terrupted to permit the time unit to perform time integration opera-
tions. Reconnecting the terminals enables timer operation to be
continued.
Contact Output (Top View)
Solid-state Output (Top View)
When using the 12/24 VDC operated timer with a 24 VDC
power supply, open terminals 13 and 15.
H3FA