−
24
−
Varistor
Diode
Varistor
1
2
5
3
2
1
4
3
4
5
When the impedance R is enough
smaller than the impedance of
C and r
100 ohms (or more)
is required
r =
only
Inductive
load
Output contact
Maintenance
1.Installation precautions
①
Do not install this system in a place subject to high temperatures or direct sunlight, or near a ventilator
or a heat exhaust opening.
②
Do not install the system in a place with high humidity or oily mist in the air.
③
The specified power is 100 VAC
(
50/60 Hz
)
. Never connect the machine to any other voltage.
WARNING
Never connect the system to voltages other than 100 VAC
(
such as 200 VAC,
400 VAC etc.
)
as the inside of the system may catch fire.
④
Never expose the inside of the housing. If the system needs to be serviced, please contact us. We are
not responsible for malfunctions or other problems caused by unauthorized service or repairs.
②
If smoke or smells come from the system, turn OFF the power immediately. Then please contact the
sales shop or us.
■
FUJI CONTROLS CO., LTD.
／
Technical Department :
Phone: 03-3265-5437 Fax: 03-3265-5430
E-mail: [email protected]
2.If a malfunction occurs
①
If you supply a no-voltage contact for the reset signal, the system may malfunction by chattering and
the voltage may drop a lot. If this happens, arrange to open the reset signal contacts after each cycle is
complete.
②
The load cell operates at low voltages between a few milli-volts and a few tens of milli-volts. The
measurement device has a microcomputer and an EEPROM inside. Make sure to use the device in a place
that not near high frequency electrical noise or induction noise sources
(
like large electric motors
)
,
and/or take the necessary noise-prevention steps to limit noise sources.
CAUTION
When connecting the ground terminal on this device, use only a class 3 ground.
Never share the ground for this system with any other devices or electric motors.
(
Failure to do may cause noise interference and malfunction.
)
Refer to the example below to connect a noise suppresser, capacitor, or other noise control devices.
3.Wiring checks
Periodically you must make sure to check for missing lead wires or wires sticking out of the terminal
block.
4.Checking the location of the load measurement complete sensor
In particular, if you are using the system for pressure fittings, make sure to check periodically whether or
not the sensor has moved from its original position. You can monitor the sensor operation by checking the
judgment point indicator on the front of the measurement device.
Summary of Contents for CHECK MAN CM-5
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