-1 ] temperature life [V]

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1 9 9CRA type Counter Rotating Fan Features High Airflow and High Static Pressure The maximum airflow has increased by 4% compared with our conventional product. * Furthermore, it has achieved industry-leading maximum static pressure of, Pa. It provides effective cooling especially for high density equipment. *: Compared with when two of our conventional DC fan, mm San Ace 9 9HV type (model no.: 9HV9PG), are connected in series for operation. 9 9 mm Specifications The following nos. have PWM controls, pulse sensors. Rated voltage Operating PWM Rated current Rated input Rated speed [min Max. airflow Max. static pressure SPL Operating Expected (Note ) Model no. voltage range duty cycle - ] temperature life [V] (Note, ) [V] [%] [A] [W] Inlet Outlet [m /min] [CFM] [Pa] [inchho] [db(a)] [ ] [h] 9. 8.,,.8,. 8 9CRA9PG. to..4.4,, , / - to +..,,.8,. 8 (, / 4 ) 9CRA948PG 48 to..,, Note : PWM frequency: khz Note : Fan does not rotate when PWM duty cycle is %. Note : Expected life at 4 ambient is just reference value. Models with the following sensor specifications are also available as options: Without sensor Pulse sensor Lock sensor Common Specifications Material Expected life Motor protection system Dielectric strength Sound pressure level (SPL) Operating temperature Storage temperature Lead wire Mass Frame, Impeller: Plastics (Flammability: UL94V-) Refer to specifications (L: Survival rate: 9% at, rated voltage, and continuously run in a free air state) Current blocking function and reverse polarity protection / Hz, VAC, minute (between lead conductor and frame) Expressed as the value at m from air inlet side Refer to specifications (Non-condensing) - to + (Non-condensing) Inlet: Red - Black Sensor: Yellow Control: Brown Outlet: Orange - Gray Sensor: Purple Control: White g

2 9 9CRA type Airflow - Static Pressure Characteristics PWM duty cycle (inch HO) (Pa),8,,4, 4, 8 4 % % VDC / 48 VDC PWM Duty Cycle % CRA9PG 9CRA948PG Operating voltage range (inch HO) (Pa),8,,4, 4, 8 4 PWM duty cycle %. V V. V (inch HO) 4 (Pa),8,,4,, 8 4 PWM duty cycle % V 48 V V CRA9PG CRA948PG PWM Duty - Speed Characteristics Example (min - ), Voltage: VDC / 48 VDC PWM frequency: khz 4,, Inlet side, min -, min -, Speed 8,, Outlet side 4,, (%) PWM duty cycle 9CRA9PG 9CRA948PG

3 - 9 9 mm PWM Input Signal Example Input signal waveform VIH VIL T T VIH=4. V to. V VIL= V to.4 V T PWM duty cycle (%) = T PWM frequency (khz) = T Source current (Isource) : ma max. at control voltage V Sink current (Isink) : ma max. at control voltage. V Control terminal voltage:. V max. (Open circuit) When the control lead wire is open, the fan speed is the same as the one at a PWM duty cycle of %. Either TTL input, open collector or open drain can be used for PWM control input signal. Example of Connection Schematic DC fan input voltage DC fan input voltage V V Control kω Ω Control kω Ω PWM input signal Isink Isource kω PWM input signal Isink Isource - - 9CRA9PG 9CRA948PG Specifications for Pulse Sensors Output circuit: Open collector Sensor Pull-up resistor Ic Pull-up voltage Rated voltage V fan VCE = +.8 V max. Ic = ma max. [VOL = VCE (SAT) =. V max.] Rated voltage 48 V fan VCE = + V max. Ic = ma max. [VOL=VCE (SAT) =. V max.] Sensor output (VCE) Output waveform (Need pull-up resistor) In case of steady running (One revolution) T T to 4 (/4) T T to 4 (/4) T = /4N (sec) N = Fan speed (min - ) T T T T4 VOH VOL V

4 Dimensions (unit: mm) Inlet side 4-φ4.±. ± Mounting hole Lead wire (4) AWG UL (4) Outlet side 9±. 8.±. () + Rotating direction Airflow direction Rotating direction Reference Dimensions of Mounting Holes and Vent Opening (unit: mm) Inlet side, Outlet side 9. 4-φ4. 9. φ9 8. ±. 8.±. 9±. 4-φ4.±. Mounting hole 8.±. Notice Please read the "Safety Precautions" on our website before using the product. The products shown in this catalog are subject to Japanese Export Control Law. Diversion contrary to the law of exporting country is prohibited. For protecting fan bearings against electrolytic corrosion near strong electromagnetic noise sources, we provide effective countermeasures such as Electrolytic Corrosion Proof Fans and EMC guards. Contact us for details. -- Minami-Otsuka, Toshima-ku, Tokyo -84, Japan TEL: The names of companies and/or their products specified in this catalog are the trade names, and/or trademarks and/or registered trademarks of such respective companies. San Ace is a trademark of SANYO DENKI CO.,LTD. Specifications are subject to change without notice. CATALOG No. CB.

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