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•
Pulse sensor type
MD625B-12S, MD625B-24S, MD825B-12S, MD825B-24S,
MD925A-12S, MD925A-24S
•
Low-speed alarm, electronic alarm type
MDS1225-12M, MDS1225-24M
•
Long life models (Stall alarm, electronic alarm type)
MDE625-24L, MDE825-24L, MDE925-24L, MDE1225-12L,
MDE1225-24L, MDE1238-24L
Installation
Location for installation
The fan is designed and manufactured for installation in equipment.
Install it in a well-ventilated location that provides easy access for
inspection. The location must also satisfy the following conditions:
•
Inside an enclosure that is installed indoors (provide vent holes)
•
Operating ambient temperature
−10 to +60 °C (+14 to +140 °F) (non-freezing)
•
Operating ambient humidity 85% or less (non-condensing)
•
Area that is free of explosive atmosphere or toxic gas (such as
sulfuric gas) or liquid
•
Area not exposed to direct sun
•
Area free of excessive amount of dust, iron particles or the like
•
Area not subject to splashing water (rains, water droplets), oil (oil
droplets) or other liquids
•
Area not subject to continuous vibration or excessive shocks
•
Area free of radioactive materials, magnetic fields or vacuum
•
Area free of excessive electromagnetic noise (from welders,
power machinery, etc.)
When using near a switching circuit or high-frequency power
supply, the induced current may flow inside the fan due to
electromagnetic noise (conductive noise, radiative noise). If the
induced current flows, the electric corrosion is caused in the
bearings of the fan. As a result, it may generate the noise or
shorten the service life of the products. Use the fan in the
environment that the electromagnetic noise does not cause.
How to install the fan
Install the fan onto an appropriate flat metal plate having excellent
vibration resistance and heat conductivity. Drill holes on the
mounting plate and fix the fun on the plate using screws (not
supplied). For air orientation and rotational direction, see the
indications shown on the fan's side frame.
Model
MDS625, MDE625, MDS825, MD825,
MDE825, MDS925, MD925, MDE925,
MD1225, MDS1225, MDE1225, MDS1238,
MDE1238
MDS410, MDS510, MD625
Connecting the power supply
Connect the red wire to the
positive (+) power supply and
the black wire to the ground
connection.
Check the voltage specification
on the product identification
plate and input the correct voltage.
Connection and specifications of the alarm
Pulse sensor type
The yellow wire is lead wire for
the pulse output. GND is
common to the sensor and
power supply.
Two cycles of rectangular waves
are output per rotation.
Screw
Tightening
size
torque
0.6 N·m
M4
(5.3 lb-in)
0.4 N·m
M3
(3.5 lb-in)
DC power supply
Red
+
Black
GND
30 VDC
15 mA
or less
or
less
R
Yellow
Black
GND
0 V
Fan
Client's circuit
Stall alarm, electronic alarm type
The orange or yellow wire is lead
wire for the alarm circut. GND is
common to the sensor and
power supply.
If the fan stalls while the power is
on, an alarm signal is output.
Model
Vo: Maximum applied voltage
MDE series
27.6 VDC or less
MDS series
30 VDC or less
MD series
30 VDC or less
∗1 MDE1225 type = 30 VDC or less
∗2 MDS1238-24L = 27.6 VDC or less
Note
The stall alarm type of fan is not equipped with a delayed
trip-point alarm circuit. Therefore, an external delay
function is necessary to avoid the detection of fan start.
The set time of the delay function should be at least one
second.
Low-speed alarm, electronic alarm type
The orange and blue wires are
lead wires for the alarm circuit.
An alarm (H level) signal is
output when the fan's rotation
speed falls below 2100±400
r/min.
Note
The low-speed alarm type of fan is equipped with an
internal delayed-start alarm circuit. The alarm function
becomes effective within 10 seconds of the fan start.
Overheat protection
The fan is equipped with an internal protective circuit against
overheating. In the event a lock-up condition is detected, this
function automatically controls the current flow to the fan motor's
windings, thus preventing the fan blades from locking and burning
out. The fan resumes operation automatically as soon as it is
released from the locked condition. Be sure to shut off the power to
the fan before performing an inspection.
•
Unauthorized reproduction or copying of all or part of this
manual is prohibited.
•
Characteristics, specifications and dimensions are subject to
change without notice.
•
and
trademarks of Oriental Motor Co., Ltd., in Japan and other
countries.
© Copyright ORIENTAL MOTOR CO., LTD. 2011
• Please contact your nearest Oriental Motor office for further information.
Technical Support Tel:(800)468-3982
8:30
to 5:00
, P.S.T. (M-F)
A.M.
P.M.
7:30
to 5:00
, C.S.T. (M-F)
A.M.
P.M.
E-mail: techsupport@orientalmotor.com
www.orientalmotor.com
Headquarters and Düsseldorf Office
Tel:0211-52067-00
Fax:0211-52067-099
Munich Office
Tel:089-3181225-00
Fax:089-3181225-25
Hamburg Office
Tel:040-76910443
Fax:040-76910445
Tel:01256-347090
Fax:01256-347099
Tel:01 47 86 97 50
Fax:01 47 82 45 16
Tel:02-93906346
Fax:02-93906348
Vo
Orange
or
R
I
Yellow
Black
GND
0 V
Fan
Client's circuit
I: Maximum current
∗1
5 mA or less
∗2
5 mA or less
15 mA or less
30 VDC
15 mA
or
less
R
Orange
Blue
GND
0 V
Client's circuit
Fan
are registered trademarks or
Tel:400-820-6516
Fax:021-6278-0269
Tel:(02)8228-0707
Fax:(02)8228-0708
Tel:+65-6745-7344
Fax:+65-6745-9405
Tel:(03)22875778
Fax:(03)22875528
Tel:+66-2-251-1871
Fax:+66-2-251-1872
KOREA
Tel:080-777-2042
Fax:02-2026-5495
Headquarters Tokyo, Japan
Tel:03-6744-0361
Fax:03-5826-2576
or less
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