RS-232C Communication Unit
DL-RS1A
Instruction Manual
96M00489
● 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
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.
If the following conditions are encountered,
immediately turn off the power. Continuing to use the
DL-RS1A under abnormal conditions may cause fire,
WARNING
WARNING
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
• 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.
The product package should include the following items. Check that all items
are included before use.
Expansion connector cover
RS-232C Communication unit
DL-RS1A
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.
End unit x 2
OP-26751
Switch protection sticker
Parts Names
Read/write setting switch
Communication status
indicator (green)
Power indicator (green)
Alarm indicator (red)
Communication
terminal block
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.
Sensor amplifier connector
(for panel mounting type / large display type)*
D
G
102#345
6
*Sticker is attached.
10
2N345
Communication setting switch
6
Sensor amplifier connector
(for DIN rail mounting type)
1
Mounting and connecting
Sensor amplifier
Expansion protective cover
Sensor amplifier
RS-232C Communication unit
DL-RS1A
Connector
Sensor amplifier connector
RS-232C Communication Unit DL-RS1A
Detach the protection sticker
Expansion cable (cable length: 300mm)
Detach the
protection
sticker
Expansion cable (cable length: 300mm)
Detach the
protection sticker
■ Mounting on the a DIN rail
1 Fit the tab of the lower part of the main
unit to the DIN rail. While inserting the
main unit in the direction of arrow 1,
push the body in the direction of arrow
2.
2 To detach the main unit, while pushing
the main unit in the direction of arrow
1, pull the body in the direction of
arrow 3.
When using a fixture (OP-60412), mount the main unit as shown below.
Fixture: OP-60412
■ How to connect to the sensor amplifier
The RS-232C Communication Unit DL-RS1A is used by connecting it to a
sensor amplifier. The connection method varies according to the mounting
type of the sensor amplifier to connect to.
When connecting the RS-232C Communication Unit
DL-RS1A, be sure to check the power of sensor
CAUTION
●
Connecting to a DIN rail mounting type sensor amplifier
amplifier is OFF before performing the operation.
Performing the operation when the power of sensor
amplifier is ON may damage the equipment.
• Refer to the "RS-232C Communication Unit DL-RS1A
Users' Manual" (page 9) for details about the
connectable sensor amplifiers.
• Refer to the Instruction Manual of each sensor
amplifier for details about how to add the sensor
amplifier.
1 Detach the expansion protective cover of the sensor amplifier to
which the communication unit is to be connected.
3 Mount the end units (OP-26751: a set of two pieces) on both sides of
the sensor amplifier and the RS-232C Communication Unit DL-RS1A,
then fix the end units with screws on the upper part of each end unit
(2 points x 2 units).
The mounting method of the end unit is the same as that of the
Communication Unit DL-RS1A.
Be sure to insert the RS-232C Communication Unit
CAUTION
DL-RS1A to the sensor amplifier at the end. Turning
on the power with diagonal insertion or improper
insertion may damage the equipment.
RS-232C
● Connecting to a panel mounting type sensor amplifier
1
Connect the sensor amplifier to the RS-232C Communication Unit DLRS1A using the optional expansion cable (OP-35361).
• Turn OFF the power before connecting the
expansion cable and connect securely. Diagonal
CAUTION
or otherwise improper insertion may damage the
equipment.
• Inserting or pulling the cable when the power is
turned ON may damage the equipment.
2 Detach the sensor amplifier connector (DIN rail mounting type) of the
RS-232C Communication Unit DL-RS1A with pliers and mount the
attached expansion connector.
Sensor amplifier connector
(for DIN rail mounting type)
Expansion
connector cover
2 Mount the RS-232C Communication Unit DL-RS1A on the DIN rail
and connect it to the sensor amplifier.
Push and fix the RS-232C Communication Unit DL-RS1A to make
sure there is no space between the communication unit and the
sensor amplifier.
Refer to the figure below, and check that the sensor
amplifier connector (for DIN rail mounting type) on
the side of the RS-232C Communication Unit DLRS1A is not mounted at an angle. Connecting to the
sensor amplifier with the connector diagonally may
damage the equipment.
CAUTION
● Connecting to a large display type sensor amplifier
1
Connect the sensor amplifier to the RS-232C Communication Unit DLRS1A using the optional expansion cable (OP-35361).
• Turn OFF the power before connecting the
expansion cable and connect securely. Diagonal
CAUTION
or otherwise improper insertion may damage the
equipment.
• Inserting or pulling the cable when the power is
turned ON may damage the equipment.
2 Detach the sensor amplifier connector (DIN rail mounting type) of the
RS-232C Communication Unit DL-RS1A with pliers and mount the
attached expansion connector.
Sensor amplifier connector
(for DIN rail mounting type)
2
Expansion
connector cover