Manual
4
Specifications
■ Main unit
* The number of connectable sensor amplifiers varies depending on the 
model to be connected.
• When configured with the GT2-70 Series units: 
Up to 15 units (including the master unit)
• GT2-100 Series: 
One unit (by connecting the head expansion boards, up to 11 
sensor heads can be connected to one amplifier.)
• When configured with the GT-70A Series/FD-MA Series units: 
Up to 10 units (including the master unit)
(When multiple models are included, the maximum number of 
connectable units is limited to that of the model with the least 
number of connectable units.)
• FD-S Series: Up to 4 units (including the main unit). (Use the FD-S 
Series independently without mixing other models.)
■ Communication
Dimensions
■ When mounting on a DIN rail
■ When using an optional fixture (OP-60412)
Warranty
KEYENCE warrants its Products to be free from defects of material and 
workmanship and will, without charge, replace or repair (at KEYENCE's sole 
option) any Products found defective upon inspection at its factory, or other 
designated point provided the equipment has been returned, transportation 
prepaid, within one year from the date of shipment. Warranty is specifically at 
the factory. Any on-site service will be provided at the sole expense of the 
Purchaser at standard field service rates. All associated equipment must be 
protected by properly rated electronic/electrical protection devices.
KEYENCE shall not be liable for any damage due to improper engineering, 
installation, interfacing, use, modification or any action not in accordance with 
this instruction manual. Proper installation, operation and maintenance of the 
product in accordance with this instruction manual become the responsibility 
of the user upon receipt of the Product. The user shall indemnify KEYENCE 
and hold KEYENCE harmless from any liability or damage whatsoever arising 
out of any action not in accordance with this instruction manual. Components 
which wear are not warranted.
OTHER THAN AS STATED HEREIN, THE PRODUCTS ARE PROVIDED WITH 
NO OTHER WARRANTIES WHATSOEVER.
ALL EXPRESS, IMPLIED, AND STATUTORY WARRANTIES, INCLUDING, 
WITHOUT LIMITATION, THE WARRANTIES OF MERCHANTABILITY, FITNESS 
FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT OF 
PROPRIETARY RIGHTS, ARE EXPRESSLY DISCLAIMED. IN NO EVENT 
SHALL KEYENCE AND ITS AFFILIATED ENTITIES BE LIABLE TO ANY 
PERSON OR ENTITY FOR ANY DIRECT, INDIRECT, INCIDENTAL, PUNITIVE, 
SPECIAL OR CONSEQUENTIAL DAMAGES (INCLUDING, WITHOUT 
LIMITATION, ANY DAMAGES RESULTING FROM LOSS OF USE, BUSINESS 
INTERRUPTION, LOSS OF INFORMATION, LOSS OR INACCURACY OF 
DATA, LOSS OF PROFITS, LOSS OF SAVINGS, THE COST OF 
PROCUREMENT OF SUBSTITUTED GOODS, SERVICES OR 
TECHNOLOGIES, OR FOR ANY MATTER ARISING OUT OF OR IN 
CONNECTION WITH THE USE OR INABILITY TO USE THE PRODUCTS, 
EVEN IF KEYENCE OR ONE OF ITS AFFILIATED ENTITIES WAS ADVISED OF 
A POSSIBLE THIRD PARTY'S CLAIM FOR DAMAGES OR ANY OTHER CLAIM 
AGAINST THE PURCHASER. No representation or warranty, express or 
implied, made by any sales representative, distributor, or other agent or 
representative of KEYENCE which is not specifically set forth herein shall be 
binding upon KEYENCE. In some jurisdictions, some of the foregoing 
warranty disclaimers or damage limitations may not apply.
Item Specification
Model DL-RS1A
Supply voltage
20 to 30 VDC, including 10% ripple (P-P). Class2
(supplied from the connected sensor amplifier)
Current consumption 25 mA max.
Number of connectable sensor 
amplifiers
Varies depending on the model*
Indicator
Communication status indicator (green x 2), 
Alarm indicator (red), Power indicator (green)
Environmental 
resistance
Ambient 
temperature
-10 to +55°C (No freezing)
Relative 
humidity
35 to 85%RH (No condensation)
Vibration
10 to 55 Hz, Horizontal amplitude: 1.5 mm, 2 
hours each in X, Y, and Z axis
Material Main unit cover: Polycarbonate
Weight Approx. 53 g
Accessory
Instruction Manual, End unit x 2, Expansion 
connector cover, Switch protection sticker
Item Specification
Communication type Full duplex
Synchronization type Asynchronous
Transmission code ASCII
Communication speed
Select from 2400, 4800, 9600, 19200, 38400 (Before 
shipment: 9600 bit/s)
Data bit length
Select either 8 bits or 7 bits (Before shipment: 8 bits)
Parity check Select from none, even and odd (Before shipment: none)
Stop bit length 1 bit
Data separator
At reception: Automatically recognizes CR or CR+LF
At transmission: fixed to CR+LF
22.5
(48.2)
43.8
37.2
21.1 35.4
70
Unit: mm
2-(4.4×3.4)
5
37.2
43.8
51.3
31.4
70
15
15
28.5
35.5
22.5
2-φ3.4
Unit: mm
Copyright (c) 2008 KEYENCE CORPORATION. All rights reserved. 0128-1 96M00489 Printed in Japan
DL-RS1A_IM_E.fm 4 ページ 2008年12月10日 水曜日 午前11時45分




