Manual
1
RS-232C Communication Unit
DL-RS1A
Instruction Manual
Safety Precautions
■ General Cautions
• At startup and during operation, be sure to monitor the functions and
performance of the DL-RS1A.
• Provide appropriate safety measures to avoid any damage in the event that
a problem occurs.
• Do not modify the DL-RS1A or use it in any way other than described in the
specifications. The functions and performance of products used or
modified in this way cannot be assured.
• When the DL-RS1A is used in combination with other instruments, its
functions and performance may be degraded, depending on the operating
conditions and surrounding environment. Use the DL-RS1A after fully
studying the effects of combined use with other instruments.
• Do not use the DL-RS1A for the purpose of protecting the human body.
•
Do not expose the DL-RS1A and peripheral devices to sudden
temperature changes. This may cause condensation, damaging the
equipment.
● Proper environment and conditions
To use the DL-RS1A properly and safely, do not install the DL-RS1A in
locations with the following conditions. Use of this equipment in an
improper environment may cause equipment failure.
• Locations with high humidity, a large amount of dust, or poor ventilation
• Locations where the temperature rises excessively due to direct
sunlight, etc.
• Locations where corrosive or flammable gas exists
• Locations where the DL-RS1A is directly subjected to vibration or
impact
• Locations where water, oil or chemicals may splash the DL-RS1A
• Locations where static electricity is easily built up
● Noise countermeasures
Installation near a source of noise such as a power source or power cable
may cause a malfunction or failure in the equipment. Adopt appropriate
countermeasures against noise by using a noise filter or wiring cables in
separate ducts, attaching insulation to the sensor amplifier or the sensor
head, etc.
Package Contents
The product package should include the following items. Check that all items
are included before use.
All possible care was taken in packaging; however, if any parts are found to
be defective or broken, please contact your nearest KEYENCE sales office.
Parts Names
WARNING
If the following conditions are encountered,
immediately turn off the power. Continuing to use the
DL-RS1A under abnormal conditions may cause fire,
electric shock or equipment failure.
• When water or foreign matter enters the controller
• When the DL-RS1A is dropped or the housing is
damaged
• When the DL-RS1A produces smoke or an abnormal
smell
WARNING
• Do not use the DL-RS1A with a voltage other than
specified voltage, as this may cause fire, electric
shock or equipment failure.
• Do not disassemble or modify the DL-RS1A. This
may cause fire or electric shock.
CAUTION
• Be sure to turn off the power to the DL-RS1A and
any connected devices before connecting or
disconnecting the cables. Otherwise, there may be a
risk of damaging the unit.
• Do not turn off the power while setting a parameter.
Otherwise, the settings may be partially or
completely lost.
End unit x 2
OP-26751
RS-232C Communication unit
DL-RS1A
Expansion connector cover
Switch protection sticker
10
2#
3
4
5
6
G
D
10
2
N
3
4
5
6
Communication status
indicator (green)
Alarm indicator (red)
Read/write setting switch
Communication
terminal block
Sensor amplifier connector
(for panel mounting type / large display type)*
Sensor amplifier connector
(for DIN rail mounting type)
Power indicator (green)
*Sticker is attached.
Communication setting switch
96M00489
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