PM4HW-H-DC12VSW Panasonic Electric Works, PM4HW-H-DC12VSW Datasheet - Page 4

• Manufacturer Part Number: PM4HW-H-DC12VSW
• Manufacturer: Panasonic Electric Works

Specifications of PM4HW-H-DC12VSW

• Lead Free Status / RoHS Status: Compliant

PRECAUTIONS IN USING THE PM4H SERIES
1. Input connections (PM4H-A type)
1) Be sure not to use terminal
common terminal of the input signal as
shown in Fig. A. Otherwise, the internal
circuit of the timer may be damaged. Use
terminal
shown in Fig. B.
If the circuits is connected as in Fig. C,
the internal circuits must be broken. Be
sure to connect the circuit as in Fig. D.
2) When one input signal is simultane-
ously applied to more than one timer,
be sure to avoid the wiring shown in Fig.
E. Otherwise, the short-circuit current
will flow and cause damage. Be sure to
align the polarity of the power supply as
shown in Fig. F.
No good
No good
No good
Good
Good
Good
Operating
voltage
Operating
voltage
Fig. E
Fig. F
Fig. C
Fig. D
Contact or
non-contact input
Fig. A
Fig. B
as the common terminal as
2
2
5
5
2
2
2
2
6
6
6
6
Input
terminal
Input
terminal
Input
terminal
Input
terminal
7
10
7
10
T
T
10
10
10
10
10
10
2
2
Contact input
(or non-contact
input)
Contact input
(or non-contact
input)
Power
supply
Power
supply
as the
3) Terminal
should be connected as the start input.
Connect terminals
x-v) for reset signal input. Connect
terminals
stop signal input. Be sure not to connect
with other terminals and apply excessive
voltage. The internal circuit will be dam-
aged.
4) The input wiring other than the power
supply circuit should avoid these condi-
tions, high-voltage wiring and parallel
wiring with power wire. Wire in short with
using the shielding wire or metal wiring
tube.
5) For start, reset and stop input, use
gold-plated contact with high reliability.
Since contact bouncing causes errors
in the start, use an input contact less
bounce time.
6) Keep the minimum signal input time
over 0.05 s.
2. Input signal conditions
(PM4H-A type)
1) Connection of contact input (Pin type
example
Use gold-plated contacts with high-reli-
ability. The bounce time at the contacts
causes errors in the timer operation
time. Accordingly, use start input contact
whose bounce time is short. The resist-
ance when shorted should be less than
1k , and when open resistance should
be more than 100k .
For the screw terminal type, connect the
terminal x to the each input signal.
2) Connection of non-contact input (Pin
type example)
(open-collector)
Apply the open-collector connection.
The characteristics of the transistor used
must be V
more, and I
the input impedance must be 1k or
less, and the residual voltage must be
0.6V or less.
For the screw terminal type, connect the
terminal x to the each input signal.
CEO
CBO
-
=10V or more, I
=6μA or less. Additionally,
-
(screw terminal x-b) for
09/2009
(screw terminal x-c)
-
5
5
(screw terminal
2
2
6
6
7
7
C
=10mA or
3) Connection of non-contact input (Pin
type example)
(voltage input)
Even if the open collector is not used,
input is also possible from the non-con-
tact circuit of 6 to 30V DC. In this case,
the start input is turned on when the sig-
nal is turned from H to L.
The residual voltage must be 0.6V or
less when Q is on. On the AC type, an
insulated transformer is required as
the power supply for the photoelectric
sensor, etc. (power supply for the input
devices).
Note: Keep the minimum input signal time of
each signal to 0.05s or more.
3. Checking the contacts before use
(PM4H-F only)
When the power ON time is less than
the minimum power application time,
the contacts may remain in an ON state,
so the state of the contacts should be
checked before use. When the contacts
are in an ON state, activating them once
will return them to their normal state (the
OFF state after time-out). (Be aware that
relay characteristics may result in the
contacts being in that same ON state
if exposed to excessive vibration and
impact during transport.)
4. Time setting
To set the time, turn the set dial to a
desired time within the range.
Instantaneous output will be on when the
dial is set to “0”.
When the instantaneous output is used,
the dial should be set under “0” range.
(Instantaneous output area)
Note) When power supply is on, the time
range, setting time and operation mode
cannot be changed.
Turn off the power supply or a reset sig-
nal is applied to set the new operation
mode.
If the position is not stable, the timer
might mis-operate.
Internal circuit
with photoelectric
sensor, etc.
Q
1mA
5
2
6
7
(The start input
is turned on.)
[Example of
start input]
53