Datasheet

Product Data Sheet 4656 ZH
01/31/2019 page 6 of 10
Features Note Values
Tacho operating voltage 4,5... 24 V
Tacho operating current (I cc at
max. UBS 1)
<= 10 mA
Tacho nominal voltage (UBS 2) < 30 VDC
Tacho signal Low I sink: 15 mA <= 0,4 V
Tacho signal High I source: 0 mA 30 V
Maximum sink current <= 20 mA
tacho pulse time Min: 0,28 s Max.: 1,5 s
External resistor
External resistor Ra from
UBS to US required. All
voltages measured to GND.
Tacho frequency n/50
Tacho isolated from motor Yes
3.3 Electrical Features
Locked rotor protection Impedance
Locked rotor current at
3.4 Aerodynamics
Measurement
conditions:
Measured with a double chamber intake rig acc. to DIN EN ISO 5801.
Normal air density = 1,2 kg/m3; Temperature 23°C +/ - 3°C;
In the intake and outlet area should not be any solid obstruction within 0,5 m. Motor shaft
horizontal.
The information is only valid under the specified test conditions and may be changed by the
installation conditions. If there are deviations from the standard test conditions, the
characteristic values must be checked under the installed conditions.
a.) Operation condition:
2.650 1/min at free air flow Frequency: 50 Hz
Max. free-air flow (∆p = 0 /
= max.) 152,0 m3/h
Max. static pressure (∆p = max. / =0) 70 Pa
b.) Operation condition:
3.100 1/min at free air flow Frequency: 60 Hz