5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-3608 Rev.9 P. 1 / 9
INSTRUCTION MANUAL
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.
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PACKAGE INCLUDES:
Limit alarm (body + base socket) .......................................(1)
Mounting bracket ................................................................(1)
Engineering unit label ........................................................(1)
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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.
POINTS OF CAUTION
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CONFORMITY WITH EU DIRECTIVES
• This equipment is suitable for Pollution Degree 2, Instal-
lation Category II (AC power, transient voltage 2500V)
and Measurement Category II (output, transient voltage
2500V). Basic insulation (signal input to output to power:
300V) is maintained. Prior to installation, check that the
insulation class of this unit satisfies the system require-
ments.
• Altitude up to 2000 meters.
• The equipment must be mounted inside a panel.
• The equipment must be installed such that appropriate
clearance and creepage distances are maintained to con-
form to CE requirements. Failure to observe these re-
quirements may invalidate the CE conformance.
• The actual installation environments such as panel con-
figurations, connected devices, connected wires, may af-
fect the protection level of this unit when it is integrated
in a panel system. The user may have to review the CE
requirements in regard to the whole system and employ
additional protective measures to ensure the CE conform-
ity.
• In order to enable the operator to turn off the power in-
put immediately, install a switch or a circuit breaker ac-
cording to the relevant requirements in IEC 60947-2 and
properly indicate it.
• Install lightning surge protectors for those wires connect-
ed to remote locations.
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GENERAL HANDLING
1) Keep away from the following environments when in-
stalling the unit.
• Where the ambient temperature in operating the unit
may reach beyond the range of -10 to 55°C or 14 to 131°F.
• Where the relative humidity in operating the unit may
reach beyond 30 – 90% RH.
• Rapid temperature change or condensation
• Corrosive gases, sulfide and ammonia in particular, or
flammable gases
• Vibration or mechanical shock
• Direct contact with water, oil, chemical materials, steam
or vapor
• Exposure to air containing heavy dust particles, salt,
chemical components, or iron particles.
• Interference by static and magnetic noise
• Direct sunlight
• Heat accumulated by radiation or such
2) Mounting the unit
Push in the mounting bracket from behind the panel un-
til the main body is securely fit on to the panel surface.
If there remains a play, tighten lightly the two screws to
stabilize the unit. Do not tighten too much because the
mounting bracket may be off the stopper by such force.
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WIRING CONNECTION
1) Where the external wiring is subjected to noise interfer-
ences, protect the unit as follows:
• For connecting a contactor employed as load of alarm out-
puts, attach a surge absorber to the contactor on the coil
side.
• An additional installation of isolating transformer and
use of noise filter are recommended when an excessive
noise exists in the power supply.
• Make sure that the noise filter is installed to a properly
grounded panel or such place and that the wiring be-
tween the output side of the filter and the power supply
terminals of the unit is made as short as possible.
• Do not install a switch or fuse on the output side of the
filter because it will degrade effectiveness of the filter.
• Stranded power supply wires are effective for protection
against noise. Better result will be expected with shorter
stranding pitch.
2) The contact outputs require a set-up time when the pow-
er is turned on. If they are to be used for an external
interlock circuit, add ON-delay relay.
3) Keep input signal and power wiring to the unit away
from power supply or load lines in order to avoid induc-
tive noise interference.
Use shielded wires for input signal line and separate
them from other wires.
4) Frequent switchings with the relay connected to a load
for its maximum capability will shorten the relay life. An
auxiliary relay is recommended.
5) Specifications of the unit
• Rated power supply: 100V (-15%) up to 240V (+10%) AC,
47 – 66 Hz; 24V DC ±10%
• Power consumption:
Approx. 3.1VA at 100V AC
Approx. 4.1VA at 200V AC
Approx. 4.8VA at 264V AC
Approx.1.7W with DC power
• Alarm output*
1
: SPDT (transfer) contacts, 220V AC or
30V DC @3A (resistive load)
*1. N.O. and N.C. contacts could be conductive at the same
time. DO NOT connect both contacts at the same time.
DC INPUT LIMIT ALARM
(digital adjustments; dual alarm trip; burnout)
MODEL
KS2V2
