H5CL
H5CL
10
Precautions
Power Supplies
When
turning the power ON
and OFF
, input signal reception is pos
-
sible,
unstable, or impossible as shown in the diagram below
.
Power
supply
Input Impossible
Unstable
Possible ImpossibleUnstable
160
ms
0 to 90ms
DC: 5 ms
AC: 10 ms
0 to 500 ms
ON
OFF
Apply
the power supply voltage through a relay or switch in such a
way
that the voltage reaches a fixed value immediately
.
Turn
the
power ON and OFF with relay with a rated capacity of 10 A
minimum to prevent contact deterioration due to inrush current
caused
by turning the power ON and OFF
.
Timer Control with Power Start
The timer cannot take measurements until 160 to 250 ms have
elapsed
after the power is turned ON (refer to the above chart). The
control
output will be delayed for any set value less than 250 ms.
When
the H5CL is used with power start in F mode (i.e., accumula
-
tive operation with output on hold), there will be a timer error
(approximately
100 ms each time the H5CL is turned on)
due to the
characteristics
of the internal circuitry
.
Use the H5CL with signal start if timer accuracy is required.
Transistor Output
The
transistor output of the H5CL is insulated from the internal cir
-
cuitry by a photocoupler, so the transistor output can be used as
both
NPN and PNP output.
The
diode connected to the collector of the output transistor is
used
to
absorb inverted voltage
that is generated when an inductive load
is
connected to the H5CL.
Load
Timer
Power for load
Inductive load
Timer
Power for load
Self-diagnostic Function
The
following displays will appear if an error occurs.
Display Error Output
status
Correction
Set value
after
correction
e1 CPU OFF Press RST
Key or turn
power of
f
and then
ON
No change
e2 Memory
(see note)
0
Note: This includes times when the life of the EEPROM has ex-
pired.
Operating Environment
When
using the
T
imer in an area with excess electronic noise, sepa
-
rate
the T
imer
, wiring, and the equipment which generates the input
signals
as far as
possible from the noise sources. It is also recom
-
mended
to shield the input signal wiring to prevent electronic inter
-
ference.
Organic solvents (such as paint thinner), as well as very acidic or
basic
solutions can damage the outer casing of the T
imer.
Preset
V
alue Change
When changing the preset value during a timing operation, output
will
turn ON if the preset value is changed as follows, since the con
-
stant
read-in system is in use:
Display mode UP:
Present value
≥
preset value
Display mode DOWN:
Elapse time
≥
preset value
(Present value = 0)
Note: When
in down
mode, the changed amount of preset value
is
added to or subtracted from the present value.
Reset with a Preset Value of 0
The
output will go ON
when the start signal is input. The output will
be
OFF while the reset key is pressed or the reset input is ON.
Power Failure Backup
All
data is stored in the EEPROM when there is power failure. The
EEPROM
can be overwritten more than 200,000 times.
Operating
mode
Overwriting timing
A mode
When the H5CL is turned of
f after changing
the set value.
F mode
When the H5CL is turned of
f after changing
the set value, turning the start input, or the
reset input ON.
Flush Mounting
The
H5CL
’
s panel surface is water-resistive (conforming to NEMA
4
(indoors)
and IP66). In order to prevent the internal
circuit from wa
-
ter
penetration through the space between the timer and operating
panel, attach a rubber packing (provided with the H5CL) between
the timer and operating panel and secure the rubber packing with
the
Y92F-30 flush-mounting adapter
.
It
is recommended that
the space between
the
screw head and the adapter should be
0.5
to 1 mm.
0.5
to 1 mm
Other
In case of performing a dielectric strength test, etc., on the H5CL
mounted
to a control panel, disconnect
the H5CL from the connect
-
ing
circuit, or short-circuit all the terminals of the H5CL.
Otherwise the H5CL may be damaged.
Terminal
1 (power supply terminal) and terminal 6 (input common:
0 V
for input) of DC model H5CL are internally connected to each
other.
DIP Switch Selection
DIP
switch setting while the H5CL is
turned on will not be valid until
the
H5CL is turned of
f and on.
