018W135P 参数 Datasheet PDF下载

Wisp II — Speed control for DC fans

martFan Wisp II

is designed

to control small DC fans. The

low voltage version includes a

temperature alarm for increased safety. The high

voltage version accepts a 38 to 75 VDC

supply voltage range and includes a voltage

limiter set to 50 VDC.

Wisp II includes both a temperature sensor

and control circuit packaged in a probe for conve-

nient remote or on-fan mounting. The controller

uses a linear operating principle, applying a smooth

DC voltage to the fans. It is available for both

Closed-Loop (temperature regulating) and Open-

Loop (temperature compensating) applications.

S

The Wisp II controller’s power rating is sufficient

to control up to three typical 120 mm fans. The

low voltage version can be used with 12 or 24

VDC fans. The high voltage version is used with

48 VDC fans.

For additional information see:

page 13 Design Considerations

FEATURES

•

Noise reduction typically 15 dB(A) at idle speed

•

Completely self contained including sensor

•

Controls 12, 24 and 48 VDC fans

2.00 in.

(50.8mm)

0.5 in.

(12.7mm)

3.00 in.

(76.2mm)

Temperature

Sensor

•

Low voltage version (018W1XXX) accepts a supply

voltage range of 11.5 to 30 VDC and includes a temp-

erature alarm output that can drive logic or a red LED

•

High voltage version (048W0XXX) accepts a supply

voltage range of 38 to 75 VDC and includes a voltage

limiter set to 50 VDC

•

70ºC maximum operating temperature

•

Supplied with 15 inch (24 AWG) wires and

mounting clamp.

SPECIFICATIONS

Part Number

Type

1

Supply

Voltage Range

11.5 - 30 VDC

38 - 75

11.5 - 30

38 - 75

Maximum

Watts to Fans

2

20 Watts

20

3

20

20

3

Control

Temperature

35°C

40

35

40

N/A

N/A

Full Speed / Idle Speed

Temperatures

N/A

N/A

35°C/23°C

35°C/23°C

018W135

018W140

048W035

048W040

018W135P

048W035P

1

2

Closed-Loop

Closed-Loop

Open-Loop

Open-Loop

Closed-Loop types are installed near equipment exhaust, Open-Loop types at equipment inlet.

Air temperature of 70°C or less, air velocity of 200 ft/min or greater. See page 13 for derating above 70°C.

3

Above 50 VDC supply, power is linearly derated, reaching 10 Watts at 75 VDC.

U.S. Patents 4,659,290, 4,722,699 and 5,364,026

CONTROL

RESOURCES

28

INCORPORATED

E-mail: sales@controlres.com

s

Web: www.controlres.com