8314/19H

8314/19H DC Axial Fan 80mm axial fan with high air flow. The DC drive employs an electronically commutated external rotor motor with high efficiency. Drive electronics is completely integrated into the fan hub. The air flow and noise level can be controlled by varying the supply voltage range. General Data Nominal voltage V DC 24 Features Voltage range V DC 12 ... 26.5 • Nominal speed rpm 5000 (+/- 7,5 %) • • • Electronic protection against locking or overload. 3 Max. flow rate m /h 80 Electronic reverse polarity protection. Fan starts only with correct polarity. Max. flow rate CFM 47 Noise free air dB(A) 48 Alarm output signal type /19; high on fail; for details please refer to alarm specification attached. Noise in optimum operating range bels 6.2 mA 270 Power consumtion W 6.4 Permanent ambient temperature °C -20 ... +65 Service life (65 °C) h 37.500 Service life (40 °C) h 70.000 Current consumption Electrical connection via 3 leads AWG 22, TR64, 310mm long, stripped and tinned ends (red = +24V; black = GND; yellow = alarm) at max. voltage Patents granted or applied for. Approvals UL, VDE, CSA Fan housing / impeller PBTP / PA 6.6 Bearing system Mass kg All data are mean values at nominal conditions. 0 5 10 15 Ball bearings 0,170 Subject to change without notice x10-3m 3/s 140 Druckerhöhung pf Pa 100 80 60 40 20 0 0 10 20 30 40 50 Volumenstrom V ebm-papst St. Georgen GmbH & Co KG 60 3 m /h 80 8314_19H.doc 24.11.2009 Alarm Signal Output: U (+) ISource U a ISink U R ba a GND U (+) Ua Uba GND Ra = = = = = Supply Voltage (+) Alarm Signal Alarm Supply Voltage Ground (-) External Pull up-Resistor n > nG Ra = n> nG Ub a - Ua L Isin k n> nG n U/min n< nG blockiert n= 0 U/m in t U(+ ) Volt t Ua Volt t Technical Data Designation Alarm Circuit This fan is equipped with an integrated alarm circuit producing a continuous output signal Ua for monitoring fan speed. At proper operation in the nominal voltage range the alarm output is a „low“ level. When speed decreases below limit speed nG = 1500rpm (+/-100rpm), e.g. by high friction torque, locked rotor condition, or low operating voltage, a „high“ level output will occur. When speed recovers, the alarm signal goes back to „low“, i.e. alarm is nonlatched. Test condition Symbol Value Alarm output voltage Uba max 60 V DC Max. sink current Isink max 20 mA Ua L ≤ 0,3 V Ua H ≤ 60 V Ua = 60 V Isink max. 15µA at start up only t2 < 15 s +/- 1s Signal rise and fall time Ua tr, tf min.0,5V/µs (Stand TTL) Alarm trip speed nG Output voltage “Low” nnG Leakage current n>nG Alarm delay time 1500pm +/- 100rpm trÎLow-High ebm-papst St. Georgen GmbH & Co KG tf Î High-Low Alarm Signal suppressed at start-up 8314_19H.doc 24.11.2009