3749-2-4039 EBM-Papst Industries Inc, 3749-2-4039 Datasheet - Page 11

• Manufacturer Part Number: 3749-2-4039
• Description: Finger Guard
• Manufacturer: EBM-Papst Industries Inc
• Type: Fan Guardr

Specifications of 3749-2-4039

• Fan Size: 150 X 172 Mm
• Fixing Centers: 162mm
• External Width: 150mm
• Accessory Type: Finger Guard
• External Height: 150mm
• Fan Type: EBM W2E142 Series
• Primary Type: Fan Accessories
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Wiring Diagrams and Signals
Alarms & Connectors for ebm/Papst Tubeaxial Fans
Call ebm Industries at 860-674-1515 • Fax [phone] • E-mail: [e-mail] for Technical Assistance
Characteristics of Fan Signals and Operation with different Alarm Signals
Speed Sensor Type: S, /2,
These fans produce speed-proportional
square-wave signals via an integrated
sensor. This 'electronic' tachometer is
used to monitor the fan speed.
Alarm Signal Type:
These fans produce a continuous signal
output when operating interference-free.
When fan speed falls below 75 - 85% of the
nominal speed, short low impulses are
generated. The greater the fall below the
alarm speed, the greater the low impulse
width becomes. At rest there is a continuous
low signal.
Alarm Switching Signal Type:
These fans produce speed-dependent,
directly usable high/low square-wave signals
via integrated alarm switching circuits.
/5 models: Switching circuit is galvanically
separated with a separate current supply.
/17: Direct current supply via motor; the switching
circuit is not separate.
VarioFans have Temperature
Dependent Speed Control
© ebm Industries, Inc. 2001. ebm Industries, Inc. reserves the right to change any specifications or data without notice.
/10
/5,
/12
/17
M
I N D U S T R I E S , I N C .
Temperature Sensor
+ Supply Voltage
– Ground
Alarm Signal
(optional)
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