H5AN
Connection of Reset and Gate Inputs
For reset input, connect a contact or an open collector type transistor
between terminals 8 and 9. The timer resets when contact is made or
when the transistor is ON. For gate inputs, connect a contact or an
open collector type transistor between terminals 8 and 10. The timer
stops when contact is marked or when the transistor is ON.
Use a contact of high contact reliability, or an open collector type
transistor with characteristics: V
CEO
= 20 V min., V
CE(S)
(residual
voltage) = 3 V max., I
C
= 50 mA min. and I
CBO
(leakage current) =
0.5
μ
A max.. Use of a gate input contact with minimum contact
bounce (chatter) is a must, since the contact bounce time will cause
an error in timer operating time.
When connecting a solid-state circuit not of the open collector type to
the gate or reset inputs as shown below, the voltage of the solid-
state circuit (+V) should be 13 to 30 V, and the V
CE(S)
of the transistor
should be less than 3 V (the current that flows from either terminal 9
or 10 is approximately 10 mA). Moreover, it is essential that the
circuit be ON for gate or reset input, and OFF when there is no input.
Connection of a Power Supply for
Externally Connected Components
The H5AN has a built-in power supply for externally connected
components such as sensors for gate or reset input, or loads
connected to the solid-state control output (12 VDC, 80 mA).
Power can be applied to the sensors and loads simultaneously.
Simultaneous Input to a Number of
H5AN Timers with the Same Contact or
the Same Open Collector Transistor
A reset or gate input may be applied to two or more units of H5AN
with only one contact or transistor as shown below. In this case,
caution is required as a large current flows into the transistor. (The
current that flows from H5AN is approximately 10 mA pre unit.)
Load
(gate)
(reset)
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