M-system MDP-LWA Instruction Manual

INSTRUCTION MANUAL
LIGHTNING SURGE PROTECTOR FOR
BEFORE USE ....
Thank you for choosing M-System. Before use, please check
contents of the package you received as outlined below.
If you have any problems or questions with the product,
please contact M-System's Sales Office or representatives.
■ PACKAGE INCLUDES:
Surge protector ....................................................................(1)
DIN rail mounting adaptor* ...............................................(1)
Screws for DIN rail mounting (M4 × 8)* ...........................(2)
*Included with option code /A33
■ MODEL NO.
Confirm Model No. marking on the product to be exactly
what you ordered.
■ INSTRUCTION MANUAL
This manual describes necessary points of caution when
you use this product, including installation, connection and
basic maintenance procedures.
LIMITATION APPLICABLE TO M-RESTER
The M-RESTER will protect electronics equipment from
damage caused by lightning by absorbing most of the
surge voltages.
However, M-RESTER may not be effective against cer-
tain extremely high voltages caused by a direct or almost
direct hit by lightning.
M-RESTER must be installed according to this installa-
tion / instruction manual.
GENERAL
■ FUNCTION & FEATURES
• Designed specifically for L
• No interruption of transmission signal by unplugging the
head element module
■ SPECIFICATIONS
LINE TO
LINE
Max. continuous ±1.5V
operating voltage (Uc)
Voltage protection level ±40V
(Up) @2kV (1kA)
Leakage current ≤ 0.15mA
@±1.5V
Capacitance @1 MHz ≤ 200 pF
Response time ≤ 4 nsec.
Max. discharge current
(Imax)
Nominal current (IN)
Internal series resistance
Max. line voltage
Input attenuation -1 dB or less @DC...100 kHz, Z0 = 50 Ω
L W
(FTT-10A)
ON ORKS
W network
ON ORKS
LINE TO SHLD TO
EARTH EARTH
±100V ±160V
±350V ±650V
≤ 20µA ≤ ±20µA
@±100V @±160V
≤ 200 pF ≤ 30 pF
≤ 20 nsec. ≤ 20 nsec.
5000A (8 / 20 µs)
100mA
≤ 3.3 Ω including return
±1.5V
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp
MODEL
POINTS OF CAUTION
■ ENVIRONMENT
• When heavy dust or metal particles are present in the
air, install the surge protector inside proper housing with
sufficient ventilation.
• Do not install the surge protector where it is subjected to
continuous vibration. Do not subject the unit to physical
impact.
• Environmental temperature must be within -5 to +55°C
(23 to 131°F) with relative humidity within 30 to 90% RH
in order to ensure adequate life span and operation.
■ NETWORK SPECIFICATIONS
• The MDP-LWA is applicable to networks which consist
only of FTT-10A. Not applicable to the ones connected to
Link Power network.
• For detailed information on the network, refer to L
W FTT-10A Free Topology Transceiver User's Guide
ORKS
provided by Echelon.
■ DIELECTRIC STRENGTH TEST
• Loosen the screw located at the left-center of the element
and remove the element module from the base before
conducting a dielectric strength testing. Otherwise the
element will start discharging at a voltage exceeding the
max. continuous operating voltage (Uc), which can cause
insulation failure of the module.
Be sure to return the element and fasten securely after
the test.
■ AND ....
• We recommend that you keep spare surge protectors so
that you can replace them when necessary.
• Lightning surge can enter not only through signal lines
but also through power supply lines. We recommend that
you also use the surge protectors for power line for suffi-
cient protection.
COMPONENT IDENTIFICATION
Head Element
Specifications
Element is secured to Base
with screw when M-RESTER is
shipped from Factory.
MDP-LWA
ON-
Base
Ground Terminal (G)
(used as mounting bracket)
EM-8234 Rev.2 P. 1 / 4