Transcript
Cooling Fans Introduction
Specifications for Fans with Alarms
AC Input Variable Flow MRS
■ Stall Alarm, Electronic Alarm Type
MRS
The alarm specifications vary depending on the type of alarm and fan. Check the alarm specifications according to the alarm and fan type you use. Specifications can also be referred to by the alarm specifications number shown on the specifications for each product.
Axial Flow Fans
An alarm is output when the fan stops while operating.
Alarm Activation Speed Output Mode Output Condition Maximum Rating Delay Function
● Example of Alarm Circuit Connection
When locked Open-collector output Operation: L level (Internal transistor ON) When locked: H level (Internal transistor OFF) Maximum applied voltage: 30 VDC max. Maximum current: 5 mA max. Not built-in: External delay circuit is required to prevent alarm detection when starting the fan. The delay time should be at least 1 second.
5 mA Yellow or Orange max.
30 VDC max. R
Black GND
Fan
0V Controller
DC Input Long-Life MDE
● Alarm Specifications
MDS/MD
①
● Models ◇MDS/MD Series: MDS1451-□LH, MDS1451-□L, MD925A-□LH, MD925A-□L, MD825B-□LH, MD825B-□L, MD625B-□LH, MD625B-□L, MDS510-□LH, MDS510-□L, MDS410-□LH, MDS410-□L ◇MDE Series: MDE1451-□L2, MDE1225-□L
MU
Alarm Specifications Number
MB
Alarm Specifications Number
● Models ◇MRS Series: MRS25-□M, MRS20-□M, MRS18-□MH, MRS18-□TM, MRS16-□TM ● Example of Alarm Circuit Connection
● Alarm Specifications
Maximum Rating
Fan
30 VDC max.
R
0V Controller
Black or Blue
MFD
Delay Function
15 mA max.
Orange
MF
Output Condition
1800±300 r/min Open-collector output Normal operation: L level (Internal transistor ON) Alarm output: H level (Internal transistor OFF) Maximum applied voltage: 30 VDC max. Maximum current: 15 mA max. Not built-in: External delay circuit is required to prevent alarm detection when starting the fan. The delay time should be at least 10 seconds.
FM
● Models ◇MRS Series: MRS14-TTM
Power Supply for Driving Alarm Circuit
5 VDC±5%
Delay Function
Built-in starting delay time: 25 sec. max. (The alarm function starts monitoring within 25 seconds after the power is turned on.)
Black 0V Controller
Fan
● Example of Alarm Circuit Connection
● Alarm Specifications
Output Condition Maximum Rating Delay Function
CAD Data Manuals
15 mA 30 VDC max. max. R
● Models ◇MDS Series: MDS1225-□MH, MDS1225-□M Alarm Activation Speed Output Mode
④
Orange
Installation
Alarm Specifications Number
Maximum Rating
Red 5 VDC
Accessories
Output Condition
1800±300 r/min Open-collector output Normal operation: L level (Internal transistor ON) Alarm output: H level (Internal transistor OFF) Maximum applied voltage: 30 VDC max. Maximum current: 15 mA max.
Thermostats
Alarm Activation Speed Output Mode
③
● Example of Alarm Circuit Connection
● Alarm Specifications
Cooling Module
Alarm Specifications Number
Cross Flow Fans AC Input DC Input
Alarm Activation Speed Output Mode
②
MBD
An alarm is output when the fan speed drops to a specific level. Output mode is electronic output.
Centrifugal Blowers AC Input DC Input
■ Low-Speed Alarm, Electronic Alarm Type
2100±400 r/min Open-collector output Normal operation: L level (Internal transistor ON) Alarm output: H level (Internal transistor OFF) Maximum applied voltage: 30 VDC max. Maximum current: 15 mA max. Built-in starting delay time: 10 sec. max. (The alarm function starts monitoring within 10 seconds after the power is turned on.)
www.orientalmotor.com
Technical Support
TEL: (800) 468-3982 E-mail:
[email protected]
15 mA Orange max.
30 VDC max. R
Blue GND
Fan
0V Controller
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Introduction ■ Low-Speed Alarm, Contact Alarm Type An alarm is output when the fan speed drops to a specific level. Output mode is contact output. Alarm Specifications Number
● Models ◇MRS Series: MRS25-□B ● Alarm Specifications Alarm Activation Speed Output Mode Output Condition
⑤
Alarm Specifications Number
Maximum Rating Delay Function
● Alarm Specifications
Output Condition
Alarm Specifications Number
Maximum Rating Delay Function
Output Condition Maximum Rating Delay Function
0V Controller
Fan
1800±300 r/min Relay output Normal operation: Contact OFF Alarm output: Contact ON Contact capacity Resistive load: max.10 VA (max. 100 V/max. 0.5 A) Not built-in: External delay circuit is required to prevent alarm detection when starting the fan. The delay time should be at least 10 seconds.
● Example of Alarm Circuit Connection R
White Black
0V Controller
Fan
MBD10-24A, MBD8-24A: 1500±400 r/min MBD12-24A: 1300±400 r/min Relay output Normal operation: Contact ON Alarm output: Contact OFF Maximum applied voltage: 30 VDC max. Maximum current: 30 mA max. Built-in starting delay time: 10 sec. max. (The alarm function starts monitoring within 10 seconds after the power is turned on.)
● Example of Alarm Circuit Connection White
30 mA max.
30 VDC max. R
Blue 0V Controller
Fan
● Models ◇MDS Series: MDS1751-24BH, MDS1751-24B ● Alarm Specifications Alarm Activation Speed Output Mode Output Condition Maximum Rating
⑧
Black
● Alarm Specifications
Output Mode
Alarm Specifications Number
R
White
● Models ◇MBD Series: MBD12-24A, MBD10-24A, MBD8-24A
Alarm Activation Speed
⑦
● Example of Alarm Circuit Connection
● Models ◇MRS Series: MRS16-□TA Alarm Activation Speed Output Mode
⑥
1800±300 r/min Relay output Normal operation: Contact ON Alarm output: Contact OFF Contact capacity Resistive load: max.10 VA (max. 100 V/max. 0.5 A) Not built-in: External delay circuit is required to prevent alarm detection when starting the fan. The delay time should be at least 10 seconds.
Delay Function
1800±400 r/min Relay output Normal operation: Contact ON Alarm output: Contact OFF Maximum applied voltage: 30 VDC max. Maximum current: 30 mA max. Built-in starting delay time: 10 sec. max. (The alarm function starts monitoring within 10 seconds after the power is turned on.)
● Example of Alarm Circuit Connection ◇MDS1751-24BH 30 mA Orange max.
30 VDC max. R
Blue 0V Controller
Fan ◇MDS1751-24B White
30 mA max.
30 VDC max. R
Blue Fan
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ORIENTAL MOTOR GENERAL CATALOG 2012/2013
0V Controller
Cooling Fans Introduction
■ Pulse Sensor Type Two pulses are output per revolution of the fan. Fan speed is monitored as the host controller, etc., reads the output pulses. This function helps you set a desired output speed for alarm activation. ● Models ◇MDS/MD Series: MDS1751-24SH, MDS1751-24S, MD925A-□SH, MD925A-□S, MD825B-□SH, MD825B-□S, MD625B-□SH, MD625B-□S ◇MBD Series: MBD10-□S, MBD8-□S Output Pulse Output Mode
Two pulses per fan revolution Open-collector output ● Normal
● When
Operation
GND
Fan
0V
T4
0V Controller
T=T1+T2+T3+T4 One fan revolution 60 T [s] N: Speed [r/min] = T1∼T4 = 4N 4 T1 Pulse width duty = = 50±10% T1+T2
Maximum applied voltage: 30 VDC max. Maximum current Ic: MD925A-□SH, MD925A-□S, MD825B-□SH, MD825B-□S, MD625B-□SH, MD625B-□S: 5 mA max. MDS1751-24SH, MDS1751-24S, MBD Series: 10 mA max.
MB
● Alarm Specifications
● Example of Alarm Circuit Connection
● Normal
● When
Operation
VOH
VOL 0V
VOL 0V
T2
T3
T4
T=T1+T2+T3+T4 One fan revolution
Black 0.6 s 5s
Fan
GND
0V Controller
or VOH 0V
Maximum applied voltage: 30 VDC max. Maximum current: 5 mA max.
MFD
60 T [s] N: Speed [r/min] = T1 ∼T4 = 4N 4 T1 Pulse width duty = = 50±10% T1+T2
Maximum Rating
30 VDC max. R
MF
Output Condition
T1
Locked
5 mA max.
Cross Flow Fans AC Input DC Input
VOH
Yellow
MBD
Two pulses per fan revolution Open-collector output
Centrifugal Blowers AC Input DC Input
● Models ◇MDS Series: MDS1451-□SH, MDS1451-□S Output Pulse Output Mode
⑩
T3
DC Input Long-Life MDE
Alarm Specifications Number
Black
MDS/MD
Maximum Rating
T2
30 VDC max. R
Axial Flow Fans
Output Condition
T1
Ic
MU
⑨
Locked
VOH
VOH VOL 0V
Yellow
AC Input Variable Flow MRS
● Example of Alarm Circuit Connection
● Alarm Specifications
MRS
Alarm Specifications Number
FM
Cooling Module Thermostats Accessories Installation
CAD Data Manuals
www.orientalmotor.com
Technical Support
TEL: (800) 468-3982 E-mail:
[email protected]
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