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
Impossible
Unstable
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 off
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 Timer in an area with excess electronic noise, sepa-
rate the Timer, 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 Timer.
Preset Value 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 off after changing
the set value.
F mode
When the H5CL is turned off 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.
É
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 off and on.
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