Oriental motor FSC-24 User manual

1
Introduction
 Before using the product
Only qualied personnel of electrical and mechanical engineering should work with
the product. Use the product correctly after thoroughly reading the section "Safety
precautions." In addition, be sure to observe the contents described in warning, caution,
and note in this manual.
The product described in this document has been designed and manufactured to be
incorporated in general industrial equipment. Do not use for any other purpose. Oriental
Motor Co., Ltd. is not responsible for any damage caused through failure to observe this
warning.
 Applicable product
DC axial ow fans MD Series VType (variable speed)
For information and precautions about handling the product, check the operating manual
included with the applicable product.
Safety precautions
The precautions described below are intended to ensure the safe and correct use of the
product, and to prevent the user and other personnel from exposure to the risk of injury.
Use the product only after carefully reading and fully understanding these instructions.
WARNING
Handling the product without observing the instructions
that accompany a "WARNING" symbol may result in serious
injury or death.
CAUTION
Handling the product without observing the instructions
that accompany a "CAUTION" symbol may result in injury or
property damage.
Note
The items under this heading contain important handling
instructions that the user should observe to ensure safe use
of the product.
WARNING
•Do not use the product in explosive or corrosive environments, in the presence of
ammable gases or near combustibles. Doing so may result in re or injury.
•Only qualied and educated personnel should be allowed to perform installation,
connection, operation and inspection/troubleshooting of the product. Handling by
unqualied and uneducated personnel may result in re or injury.
•Always keep the power supply voltage within the specied range. Failure to do so may
result in re.
•Connect the product securely according to the connection diagram. Failure to do so may
result in re.
•Do not forcibly bend, pull or pinch the lead wire. Doing so may result in re.
•Turn o the power in the event of a power failure. Otherwise, the fan will suddenly start
when the power is restored, and this may cause injury or damage to equipment.
•Do not disassemble or modify the product. Doing so may cause injury.
CAUTION
•Do not use the product beyond the specications. Doing so may result in injury or
damage to equipment.
•Keep the area around the product free of combustible materials. Failure to do so may
result in re or a skin burn(s).
•Do not touch the fan while operating. Doing so may cause injury. The use of an accessory
nger guard is recommended to ensure protection.
•When an abnormality is noted, turn o the power immediately. Failure to do so may
result in re or injury.
•For the power supply, use a DC power supply with reinforced insulation on its primary
and secondary sides. Failure to do so may result in electric shock.
Preparation
 Checking the product
Verify that the items listed below are included. Report any missing or damaged items to
the branch or sales oce from which you purchased the product.
Speed controller..........1 unit Wiring cover..........1 piece
Operating manual (this document)..........1 copy
 Names and functions of parts
Front side Rear side
1
2
4
3
5
7
6
8
POWER ALARM
SPEED
9 5('
%/.
%51
<(/
*1'
0
*1'
$/0
*1'
TB1 TB2 FAN
Protective lm
Use after removing the protective lm.
Number Name Indication Function
1 Indicator (Green) －
This indicator shows the fan speed (PWM
output) in linking with the setting dial, as
well as an alarm.
2 POWER LED (Green) POWER This LED is lit when the power is input.
3 ALARM LED (Red) ALARM This LED blinks when an alarm is
generated.
4 Setting dial SPEED This setting dial is used to set the fan
speed (PWM output).
5I/O connection
terminal TB1 Connects the power supply, the speed
switching input, and the alarm output.
6Fan connection
terminal
TB2
FAN Connects a fan.
7Nameplate －
The model name, the serial number, and
the year and month of manufacture are
described.
8Function select
switches SW1 Uses for switching the setting.
Refer to p.3 for details.
Installation
 Installation location
Install the product in the following location that provides easy access for inspection.
•Inside an enclosure installed indoors
•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 (rain, water droplets), oil (oil droplets) or other liquids
•Area not subject to continuous vibration or excessive shocks
•Area free of radioactive materials, magnetic elds or vacuum
•Altitude: Up to 1000 m (3300 ft.) above sea level
•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 ow inside the fan due to electromagnetic noise (conductive noise, radiative noise).
If the induced current ows, 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.
HF-3167-3
OPERATING MANUAL
Thank you for purchasing an Oriental Motor product.
This Operating Manual describes product handling procedures and safety precautions.
•Please read it thoroughly to ensure safe operation.
•Always keep the manual where it is readily available.
Fan Speed Controller
FSC-24

2
 Installation method
Installation methods of the speed controller are shown below. After connecting a power
supply and fan to the speed controller, attach the wiring cover before use.
Attaching the wiring cover
Wiring cover
Spee
d
controller
Groove
Tab
As shown in the gure, put the tab of the
wiring cover into the groove of the speed
controller until making a clicking sound.
When removing the wiring cover from the
speed controller, pull out while pressing the
tab of the wiring cover.
The speed controller cannot be installed to
a panel in a state where the wiring cover is
attached.
zWhen installing to a panel
Install the speed controller to a at panel oering excellent vibration resistance.
Applicable thickness of panel: 2.0 to 3.0 mm (0.08 to 0.12 in.)
Panel
Speed
controller
Wiring cover
1.
Assemble the speed controller to a
panel.
2.
Attach the wiring cover to the speed
controller.
Check if the speed controller is properly
installed to the panel.
Panel cut-out
[Unit: mm (in.)] 4×R2 or less
+0.6
0
34.2
(1.35 )
+0.024
0
+0.5
0
64.5
(2.54 )
+0.02
0
zWhen installing to a DIN rail
Use a DIN rail 35 mm (1.38 in.) wide to install the speed controller.
Pull down the DIN lever of the speed controller, and push in the speed controller with
hanging the hook at the rear to the DIN rail, and then lift the DIN lever.
After installation, secure the both sides of the speed controller with the end plate that the
customer provides.
Hook
DIN rail
DIN lever
End plate
Removing from DIN rail
Pull the DIN lever down using a screwdriver or the like, and
lift the bottom of the speed controller to remove it from the
rail.
Use force of about 10 to 20 N (2.2 to 4.5 lb.) to pull the DIN
lever down.
Excessive force may damage the DIN lever.
zWhen installing with screws
Secure the wiring cover using the mounting holes with two
screws (M4: not included) in a state of removing the speed
controller.
Tightening torque: 0.7 N·m (6.1 lb-in)
Install the speed controller after securing the wiring cover.
Use screws and washers, which sizes are Ø10 mm (0.39 in.) or
less, to secure the lever.
53.5 mm
(2.11 in.)
Mounting
holes
Lever
Note Check periodically if any of the tightened screws come loose.
Re-tighten if the screw was loose.
Connection
Note Check the specication of the power supply voltage before applying the
voltage. Applying a voltage exceeding the rated range may damage the
product.
 Connection method
GND
24 V
GND
ALM
GND
1
2
3
4
5
6
24 VDC
-10 to +15%
（21.6 to 27.6 V）
Speed controller
Red
Black
Brown
Yellow
Connection of fan 
Alarm
signal
output
TB1 TB2 FAN
1
2
3
4

Check the specications and number of fans connected, and use a power supply having
a suitable capacit
y.

Use crimp terminals to connect fans of MDV420, MDV515, MDV625, MDV825 and
MDV925.
The maximum extension distance between the speed controller and fan is 2 m (6.6 ft.).
External DC power
supply
M0
Speed
switching
input
 Connecting the TB1
Pin assignment
9
*1'
0
*1'
$/0
*1'
Pin No. Terminal
name Function Description
124 V Power supply
input Connects a 24 VDC power supply.
2 GND
3 M0 Speed
switching input
The fan speed can be switched
between the rotation speed being set
and the maximum speed.
ON: Maximum speed
OFF: Setting speed
4 GND
5 ALM Alarm signal
output
This signal is output if an alarm is
generated. (Normally closed)
6 GND
zInternal congurations of circuit for speed switching input
The input signal circuit of the speed controller is C-MOS input.
GND
+5 V
200
M0
C-MOS
Speed controller
internal circuit
0 V
Open
collector
R
GND
+5 V
200C-MOS
Speed controller
internal circuit
0 V
M0
Switch
●In the case of open-collector output●In the case of connecting a switch
R
CC
0 V
•Status of signal
ON: 0 to 1 V (L level) PWM output 100% xed
OFF: 4 to 5 V (H level) PWM output variable
•Open circuit voltage 5 Vtyp
•Outow current: 20 to 30 mA
zInternal congurations of circuit for alarm signal output
The output signal circuit of the speed controller is open-collector output.
If a current signicantly exceeding the specication is generated, the internal transistor is
turned OFF.
Speed controller User's circuit
R
27.6 VDC
or less
0 V
GND
R: Limiting resistor
ALM
30 mA
or less
0 V
•Status of signal
When a fan rotates:
Internal transistor ON
When an alarm is generated
(when a fan stops):
Internal transistor OFF
•Maximum applied voltage:
27.6 VDC or less
•Maximum inow current:
30 mA or less
•ON voltage: 1.5 VDC or less

3
zWiring method (common to TB1 and TB2)
•Applicable lead wire
Lead wire size: Stranded wire AWG24 to AWG16
0.2 to 1.5 mm2
Conductive material: Use only copper wires.
Lead
wire
Screw
driver
10 mm
(0.39 in.)

•Applicable crimp terminal
Crimp terminals can also be used for connection.
When crimp terminals are used, select the following products. If the lead wire diameter of
a fan connected is AWG26, use the crimp terminal (AI 0,25-10).
Manufacturer: PHOENIX CONTACT GmbH & Co. KG
Model: AI 0,25-10 [AWG24 (0.25 mm2)]*
AI 0,34-10 [AWG22 (0.34 mm2)]*
AI 0,5-10 [AWG20 (0.5 mm2)]*
AI 0,75-10 [AWG18 (0.75 mm2)]*
*These are specications of the manufacturer.
 Connecting the TB2
Connect a fan used to the TB2.
Pin assignment
5('
%/.
%51
<(/
Pin No. Terminal
name Function Color of fan
lead wire
1 RED Fan power supply terminal (+) Red
2 BLK Fan power supply terminal (GND) Black
3 BRN PWM signal output Brown
4YEL Pulse sensor input Yellow
Operation
Do not turn on the power supply until the wiring is completed.
 Operating method
１
2
3
POWER ALARM
SPEED
Low
speed
High
speed
The fan starts rotating when the power
supply is turned on.
Operation
The fan speed can be adjusted using the setting
dial. It is set to “5” at the time of shipment.
The variable speed range varies depending on
the fan model. Refer to the table below for details.
Variable speed
The fan stops if the power supply is turned o.
Stop
Setting dial 0 1 2 3 4 5 6 7 8 9 10
PWM duty [%] 0 10 20 30 40 50 60 70 80 90 100
Fan rotation speed
LOW HIGH
Indication level on
indicator
・・・・・・・・・
When dial is set to 0 When dial is set to 10
•Variable speed range
Model MDV420, MDV515,
MDV1238
MDV625, MDV825,
MDV925, MDV1225
PWM duty [%] 20 to 100 *1 0 to 100
Operation when the setting
dial is “0”
Stop
The stall alarm is generated.
Rotating *2
It can be changed with the
function select switches.
*1 If the PWM duty cycle falls below 20%, the fan may not rotate.
*2 The fan speed when the setting dial is set to“0”is as shown in the table below. The fan
speed varies depending on the fan model.
MDV625 MDV825 MDV925 MDV1225
2850 r/min 1400 r/min 1500 r/min 1650 r/min
zFunction select switches
The new settings to the function select switches will be updated after the power is turned
on again.
Factory setting: OFF
No. Description
SW1
O
N
1
2
SW1-1
Selection of stall alarm
OFF: Enabled ON: Disabled
Set this switch to ON when connecting two or more fans.
SW1-2
Selection of operation when the setting dial is “0”
OFF: Fan rotates. The PWM duty is 0%. *1
ON: Fan stops. The power supply for fan is turned o. *2
*1 The MDV420, MDV515 and MDV1238 fans stop when the PWM duty is 0%.
*2 The stall alarm is not output.
 Multi-fan control
Speeds of two or more fans can be adjusted using a single speed controller.
When the multi-fan control is performed, set the function select switch (SW1-1) to ON to
disable the stall alarm. Also, use fans with the same frame size for the multi-fan control. Do
not combine fans with dierent frame sizes.
Note Do not connect multiple fans to the pulse sensor input.
The speed controller can capture the pulse sensor output for only one fan.
When capturing it for only one fan, turn the function select switch (SW1-1)
OFF to enable the stall alarm.
When the multi-fan control is performed with connecting the power
supply and PWM signal output
•Number of fans possible to perform the multi-fan control
MDV420, MDV515, MDV625, MDV825, MDV925: 4 units
MDV1225, MDV1238: 2 units
RED
BLK
BRN
24V GND
POWER ALARM
SPEED
Terminal block for relay
DC power
supply
Red
Black
Brown
Red
Black
Brown
Red
Black
Brown
When the multi-fan control is performed with connecting the PWM
signal output
Up to eight fans can be connected.
However, supplying the power to fans are required separately.
When power supplies are used for the fans and the speed controller respectively, be sure
to connect to a common ground.
BRN
・・
・・
24V GND
POWER ALARM
SPEED
Terminal block for relay
DC power
supply
Red
Black
Brown
Brown
Brown
Red
Black
Red
Black

4
•Unauthorized reproduction or copying of all or part of this manual is prohibited.
•Oriental Motor shall not be liable whatsoever for any problems relating to industrial
property rights arising from use of any information, circuit, equipment or device
provided or referenced in this manual.
•Characteristics, specications and dimensions are subject to change without notice.
•While we make every eort to oer accurate information in the manual, we welcome
your input. Should you nd unclear descriptions, errors or omissions, please contact the
nearest oce.
•is a registered trademark or trademark of Oriental Motor Co., Ltd., in
Japan and other countries.
© Copyright ORIENTAL MOTOR CO., LTD. 2017
Published in January 2022
T
echnical Support Tel:[phone]
8:30am EST to 5:00pm PST (M-F)
www
.orientalmotor.com
• Please contact your nearest Oriental Motor oce for further information.
Schiessstraße 44, 40549 Düsseldor
f, Germany
T
echnical Support Tel:[phone]
www
.orientalmotor.de
Unit 5 F
araday Oce Park, Rankine Road,
Basingstoke
, Hampshire RG24 8QBUK
T
el:[phone]
www
.oriental-motor.co.uk
T
el:[phone]
www
.orientalmotor.fr
T
el:[phone]
www
.orientalmotor.it
4-8-1Higashiueno
,Taito-ku,Tokyo 110-8536
Japan
T
el:[phone]
www
.orientalmotor.co.jp
Tel:[phone]
www.orientalmotor.com.cn
Tel:[phone]
www.orientalmotor.com.tw
Singapore
Tel:[phone]
www.orientalmotor.com.sg
Tel:[phone]
www.orientalmotor.com.my
Tel:[phone]
www.orientalmotor.co.th
Korea
Tel:[phone]
www.inaom.co.kr
Tel:[phone] (For English)
1800-121-4149 (For Hindi)
www.orientalmotor.co.in
Alarm
If an abnormality occurred in the speed controller or fan, the ALARM LED on the speed
controller blinks in red. Also, the alarm message can be checked by the indication level of
the indicator. If the fan was stopped, ensure safety before removing the cause of the alarm.
 Alarm lists
Indicator
status Item Cause Remedial action Status of
fan
Stall
The fan was stopped.
Check the lifetime of
the fan or adherence
of a foreign particle.
Stop *1
There is no pulse
sensor output from the
fan.
Check if there is a
disconnection in the
lead wires of the fan.
Rotating
Overvoltage
The power supply
voltage exceeded
approximately 30 VDC. Check the power
supply voltage.
Stop *2
Undervoltage
The power supply
voltage fell below
approximately 18 VDC.
Overheat
The internal
temperature of the
speed controller
exceeded the specied
value.
Check the number of
units connected and
the operating ambient
temperature.
*1 The fan starts rotating when the cause that the fan has stopped is removed.
*2 The fan automatically starts rotating when the cause of the alarm is removed and the
power supply is turned on again.
z"Stall" alarm
The MD Series Vtype fans have a function of the pulse sensor output. The speed controller
can capture the pulse sensor output of the fan and output as the stall alarm if the fan
stops.
Inspection and maintenance
 Inspection
It is recommended that periodic inspections for the items listed below are conducted after
each operation. If an abnormal condition is noted, discontinue any use and contact your
nearest Oriental Motor sales oce.
zInspection item
•Check if any of mounting screws of the speed controller or fan come loose.
•Check if the speed controller or fan generates unusual noises.
•Check if the speed controller has unusual smells or appearance defects.
 Warranty
Check on the Oriental Motor Website for the product warranty.
 Disposal
Dispose the product correctly in accordance with laws and regulations, or instructions of
local governments.
General specications
Operating
environment
Ambient
temperature -10 to +60 °C [+14 to +140°F] (non-freezing)
Ambient
humidity 85% or less (non-condensing)
Altitude Up to 1000 m (3300 ft.) above sea level
Surrounding
atmosphere
No corrosive gas, dust, water, or oil
Cannot be used in radioactive materials, magnetic eld,
vacuum or other special environment
Storage
environment
Shipping
environment
Ambient
temperature -20 to +70 °C [-4 to +158°F] (non-freezing)
Ambient
humidity 85% or less (non-condensing)
Altitude Up to 3000 m (10000 ft.) above sea level
Surrounding
atmosphere
No corrosive gas, dust, water, or oil
Cannot be used in radioactive materials, magnetic eld,
vacuum or other special environment
Regulations and standards
 CE Marking
This product is axed the CE Marking under the EMC Directive.
zEMC Directive
This product has received EMC compliance under the conditions specied in "Example of
installation and wiring."
•Applicable Standards
EMI: EN 55011 group1 class A, EN 61000-6-4 EMS: EN 61000-6-2
Caution: This equipment is not intended for use in residential environments nor for use on a
low-voltage public network supplied in residential premises, and it may not provide
adequate protection to radio reception interference in such environments.
 RoHS Directive
This product does not contain the substances exceeding the restriction values.
Installing and wiring in compliance with EMC Directive
FSC-24 has been designed and manufactured to be incorporated in equipment.
The EMC Directive requires that your mechanical equipment in which the product
is installed satises the applicable requirements. Installation and wiring methods of
FSC-24 explained here represent the basic methods that are eective in helping your
mechanical equipment conform to the EMC Directive. The nal level of conformance of
your mechanical equipment to the EMC Directive will vary depending on control system
equipment including FSC-24 and fans, conguration of electrical parts, wiring, layout,
and the like. It therefore must be veried through conducting EMC measures on your
mechanical equipment.
Without eective measures to suppress the electromagnetic interference (EMI) caused by
FSC-24 in the surrounding control system equipment and the electromagnetic spectrum
(EMS) generated by FSC-24, the function of your mechanical equipment may be seriously
aected. Implementing the following installation and wiring methods allows FSC-24 to
conform to the EMC Directive.
 Ferrite core
When extending the cable, wind the cable around a ferrite core twice before use.
The ferrite core reduces the negative eects of external noise.
Use a ferrite core of the model ZCAT3035-1330 (TDK Corporation) or its equivalent. Install
the ferrite core as close as possible to the fan.
 Example of installation and wiring
Cable
cramp
Power supply
cable
Signal cable
DC power
supply
Fan extension
cable
Ferrite
core
Shielded enclosure
Fan
(Ground panel)
Speed controller
Shielded cable
Grounding
Grounding
Grounding
Grounding
Cable
cramp
Cable
cramp
Grounding
[2 m(6.6 ft.)]
Grounding
[2 m(6.6 ft.)]