Technology 90 Alarm Signal 94 Vario-Pro / Speed setting / Control Input 99 / 100 Protection against ambient influences 102 Accessories AC Radial Fans AC Axial Fans ACmaxx Specials DC Radial Fans Sensor Signal DC Axial Fans DC Fans with Added Features 87 DC Fans Specials Technical Information Cooling capacity and efficiency Greater power density, increasing miniaturization and extreme electronic component density are posing increased demands on the cooling capacity and efficiency of fans. The intelligent and space-saving integration of the fan in the appliance configuration is therefore of major importance: * Tailor-made cooling adapted to the situation as and when required. * Programmable cooling by defining speed profiles. * Transparency of function thanks to complete, interactive monitoring in all operating conditions. ebm-papst provides intelligent cooling concepts which are optimally adapted to requirements. For example: 1. Speed adaptation via NTC sensor Standard fans in electronic cooling- millionfold tried and tested and nevertheless a temporary solution because standard fans have a distinct disadvantage: With constant speed and a corresponding high noise factor they continuously provide the airflow required in extreme cases. This extreme case only occurs, if it occurs at all, for a fraction of the service life. What is needed is the intelligent fan that automatically adapts to the current cooling requirements. 88 The ebmpapst answer: A complete range of DC fans with temperature-controlled speed adaptation - in all standard dimensions. Installation is simple. The control electronics receive their thermal information for speed adaptation steplessly and loss-free via a temperature sensor either externally via a single lead, positioned as required, or internally directly in the fan hub in the airflow. 2. DC fans with separate control input Speed control is also possible with DC fans that have a separate control input. A variation in speed can thus be realized via a control voltage or a pulse-width modulated signal. These possibilities are used above all in devices that have appropriate standard interfaces and thus require a load-dependent variation of the fans. Technology DC Axial Fans DC Fans Specials Fans with TD motor Programmable fans Vario-Pro(R) Fans with sensor signal DC Radial Fans Fans with alarm signal Technical Information Specials ACmaxx 7. Protection against environmental influences Some applications are demanding on the fans' resistance to ambient influences, such as dust, humidity, water and salt. ebm-papst offer solutions for adapting fans to various ambient conditions. AC Axial Fans 5. Turbo drives Fans with three-phase EC drives and fully integrated operating electronics. These three-phase motors whose torque is virtually non-reliant on the rotor position are used for extremely high power. These motors can also be operated in both directions of rotation so that in special cases reverse operation of the fans can be realized. The successful concept of Vario-Pro is: Tailormade software instead of a fixed hardware because programmed software modules for motor control and application intelligence are responsible for the work that analogue components were responsible for in the past. This central control unit of the Vario-Pro comprises of a microcontroller and an EEPROM, on which all characteristics are stored. AC Radial Fans 4. Alarm signal For applications which require monitored fan operation with alarm signal, ebm-papst has numerous alarm signal versions, either a static, pre-processed or interface-compatible long-or short-term signal depending on the type of fan. 6. Vario-Pro fans This High-End fan concept by ebmpapst with programmed intelligence and customer-specific integrated functions makes your electronic cooling even more variable and competitive. VarioPro ensures fresh impetus as far as economy is concerned for all demanding cooling tasks - e.g. where reliability, more flexibility and intelligent function features such as alarm function, speed control etc. are required. Accessories 3. Sensor signal DC fans with sensor signal. The integrated electronic tacho" continuously provides an actual speed signal for external evaluation. The user is informed at all times of the current fan speed via an extremely simple signal evaluation by the customer. The sensor signal is via a separate lead. 89 Sensor signal /2 "tacho" - - - - - - - Speed-proportional rectangular pulse for external speed monitoring of fan motor. 2 pulses per revolution / 6 pulses per revolution with TURBOFANS. Open-Collector signal output. Extremely wide operating voltage range (5 ... 60 V). Easy adaptation to user interface. Connection via separate lead. The sensor signal also serves as a major comparison variable for setting and maintaining the desired speed for interactive or controlled cooling with one or several interconnected fans. V DC mA V DC mA V DC 0.4 2 30 0 30 2 21 400 F 0.4 1 30 0 30 2 22 +UBS Isink US Signal data Fan description Type 250 UB output Perm. sink current Isink max. Condition: Isource UB Sensor signal US High (+) Power Condition: Isink Customer Sensor signal US Low Fan Sensor operating voltage UBS Electrical connection mA Page (-) Power All voltages measured to ground. External load resistance Ra / US / UBS required. Signal output voltage Standard signal for all models (exemptions see below) Us U S High s U S Low t1 t t2 1 Rotation 0.4 1 30 0 30 2 23 400 J 0.4 2 30 0 30 4 24 500 F 0.4 1 30 0 30 2 25 600 F 0.4 1 30 0 30 2 26 27 620 0.4 2 30 0 30 4 600 N 0.4 2 30 0 30 4 28 600 J 0.4 2 30 0 30 4 30 700 F 0.4 2 30 0 30 4 31 8400 N 0.4 2 28 0 28 4 33 2 Pulse / Rotation 8300 0.4 2 30 0 30 4 35 Signal Frequenzy [F]= 2 x n/60 Hz 8200 J 0.4 2 30 0 30 4 36 only for 4100 NH7 and NH8 U S High Us U S Low t1 t 3400 N 0.4 2 28 0 28 4 37 3300 0.4 2 30 0 30 4 39 3200 J 0.4 2 30 0 30 4 40 4400 F 0.4 2 30 0 30 4 41 4400 FN 0.4 2 30 0 30 4 42 t2 1 Rotation 3 Pulse / Rotation Signal Frequenzy [F]= 3 x n/60 Hz 6200 NTD, 6400 TD, DV 6200 TD, DV 6400 TD, RER / RG 160 NTD U S High Us 4300 N 0.4 2 30 0 30 4 43 4300 0.4 2 30 0 30 4 44 4400 0.4 2 30 0 30 4 46 4212 4214 4218 0.4 0.4 0.4 2 2 2 30 30 30 0 0 0 30 4-30 4-30 4 4 4 47 47 47 4100 N 0.4 2 30 0 4-30 4 48 4100 NHH...H6 0.4 2 60 0 60 10 49 4100 NH7 / H8 0.4 2 60 0 60 20 50 DV 4100 0.4 2 30 0 30 4 51 6 Pulse / Rotation 5200 N 0.4 2 30 0 4-30 4 52 Signal Frequenzy [F]= 6 x n/60 Hz DV 5200 0.4 2 30 0 30 4 53 5112 N 5114 N 5118 N 0.4 0.4 0.4 2 2 2 15 60 60 0 0 0 5 60 60 20 20 20 54 54 54 5300 0.4 2 72 0 72 4 55 U S Low t1 t t2 1 Rotation Fan Speed nmax n nmin 90 400 t Technology DC Radial Fans V DC mA V DC mA Page 2 2 2 60 30 60 0 0 0 60 30 60 20 20 20 56 56 56 7200 N 0.4 2 15 0 15 20 57 6300 0.4 2 72 0 72 20 58 6224 N 6248 N 0.4 0.4 8 8 30 60 0 0 30 30 20 20 59 59 DV 6200 0.4 2 30 0 60 20 61 6400 0.4 2 60 0 60 20 63 RL 48 0.4 2 28 0 4-30 4 73 RL 65 0.4 2 30 0 30 4 74 RL 90 N 0.4 2 30 0 30 4 75 RLF 100 0.4 2 30 0 30 4 76 RG 90 N 0.4 2 30 0 30 4 77 RG 125 N 0.4 2 30 0 30 4 78 RG 160 N 0.4 2 30 0 30 20 79 REF 100 0.4 2 30 0 30 4 81 RER 125 0.4 2 30 0 30 4 83 ACmaxx mA 0.4 0.4 0.4 AC Axial Fans V DC AC Radial Fans Type 7112 N 7114 N 7118 N Signal data Specials Fan description Sensor signal US High Perm. sink current Isink max. Condition: Isink Sensor operating voltage UBS Sensor signal US Low Condition: Isource DC Axial Fans Available on request: - Galvanically separated sensor and signal circuit. - Varying voltage potentials for power and logic circuit. Accessories Attention: With these fan options, deviations in regard to temperature range, voltage range and power consumption are possible compared with standard fan data. 91 Sensor signal /12 - - - - - 2 pulses per revolution / 6 pulses per revolution with TURBOFANS. TTL-compatible. Integrated pull-up resistor. Connection via separate lead. The sensor signal also serves as a major comparison variable for setting and maintaining. the desired speed for interactive or controlled cooling with one or more interconnected fans. Electrical Connection Sensor signal US High Condition: Isource Perm. sink current Isink max. Fan description Customer Condition: Isink Fan mA V DC mA mA Page 1 2.5-5.5 1 1 28 1 2.5-5.5 1 1 28 0.4 1 2.5-5.5 1 1 33 8312 /12 0.4 1 2.5-5.5 1 1 35 8314 /12 0.4 1 2.5-5.5 1 1 35 Signal data Sensor signal US Low (+) Power Type V DC 614 N/12 GM 0.4 618 N/12 N 0.4 8412 N/12 H UB output US (-) Power All voltages measured to ground. Signal output voltage Standard signal for all models (exemptions see below) 8314 /12 H 0.4 1 2.5-5.5 1 1 35 8318 /12 HL 0.4 1 2.5-5.5 1 1 35 8318 /12 H 0.4 1 2.5-5.5 1 1 35 3318 /12 H 0.4 1 2.5-5.5 1 1 39 2 Pulse / Rotation 4412 F/12 GM 0.4 1 2.5-5.5 1 1 41 Signal Frequenzy [F]= 2 x n/60 Hz 4414 F/12 0.4 1 2.5-5.5 1 1 41 4418 F/12 0.4 1 2.5-5.5 1 1 41 4312 /12 M 0.4 1 2.5-5.5 1 1 44 4314 /12 0.4 1 2.5-5.5 1 1 44 4212 /12 0.4 1 2.5-5.5 1 1 47 Us U S High s U S Low t1 t t2 1 Rotation only for 4100 NH7 and NH8 U S High Us U S Low t1 t t2 1 Rotation 3 Pulse / Rotation Signal Frequenzy [F]= 3 x n/60 Hz 6200 NTD, 6400 TD, DV 6200 TD, DV 6400 TD, RER / RG 160 NTD U S High Us U S Low t1 t t2 4212 /12 H 0.4 1 2.5-5.5 1 1 47 4214 /12 0.4 1 2.5-5.5 1 1 47 4214 /12 H 0.4 1 2.5-5.5 1 1 47 4218 /12 0.4 1 2.5-5.5 1 1 47 4218 /12 H 0.4 1 2.5-5.5 1 1 47 4182 N/12 X 0.4 1 2.5-5.5 1 1 48 0.4 1 2.5-5.5 1 1 48 0.4 1 2.5-5.5 1 1 52 4188 N/12 XM 5214 N/12 H 1 Rotation 6 Pulse / Rotation Signal Frequenzy [F]= 6 x n/60 Hz Attention: With these fan options, deviations in regard to temperature range, voltage range and power consumption are possible compared with standard fan data. Fan Speed nmax n nmin 92 t Technology 2 2.5-5.5 1 20 54 0.4 2 2.5-5.5 1 20 56 7214 N/12 0.4 2 2.5-5.5 1 20 57 6224 N/12 M 0.4 2 2.5-5.5 1 20 59 6224 N/12 0.4 2 2.5-5.5 1 20 59 6248 N/12 0.4 2 2.5-5.5 1 20 59 DV 6224 /12 0.4 2 4.5-5.25 2 12 61 DV 6248 /12 0.4 2 4.5-5.25 2 12 61 6424 /12 H 0.4 2 2.5-5.5 1 20 63 DV 6424 /12 0.4 2 4.5-5.25 2 12 65 DV 6448 /12 0.4 2 4.5-5.25 2 12 65 RG 125-19/12N/12 0.4 1 2.5-5.5 1 1 78 RG 160-28/12N/12 0.4 2 2.5-5.5 1 5 79 RG 160-28/18N/12 0.4 2 2.5-5.5 1 20 79 RER 125-19/12N/12 0.4 1 2.5-5.5 1 1 83 RER 160-28/12N/12 0.4 2 2.5-5.5 1 5 84 RER 160-28/18N/12 0.4 2 2.5-5.5 1 20 84 5118 N/12 0.4 7118 N/12 DC Radial Fans Page Specials Fan description mA ACmaxx Perm. sink current Isink max. mA V DC AC Axial Fans Condition: Isource V DC Type AC Radial Fans Sensor signal US High mA Signal data Sensor signal US Low Condition: Isink DC Axial Fans Available on request: - Galvanically separated sensor and signal circuit. - Varying voltage potentials for power and logic circuit. Accessories Attention: With these fan options, deviations in regard to temperature range, voltage range and power consumption are possible compared with standard fan data. 93 Alarm signal /17 60 20 15 * 1500 100 35 60 n > nG 0 60 20 15 * 1500 100 35 2 60 n > nG 0 60 20 15 * 1500 100 39 n < nG 2 60 n > nG 0 60 20 15 * 1500 100 39 0.4 n < nG 2 60 n > nG 0 60 20 15 * 1500 100 39 4318 /17 M 0.4 n < nG 2 60 n > nG 0 60 20 15 * 1150 100 44 4318 /17 0.4 n < nG 2 60 n > nG 0 60 20 15 * 850 100 44 4214 /17 0.4 n < nG 2 60 n > nG 0 60 20 15 * 1150 100 47 4184 N /17 X 0.4 n < nG 2 60 n > nG 0 60 20 15 * 1500 100 48 8318 /17 0.4 n < nG 2 60 8318 /17 H 0.4 n < nG 2 3312 /17 0.4 n < nG 3314 /17 0.4 3318 /17 H Condition: V DC min -1 Fan description Alarm delay time t2 0 mA Speed limit nG Max. permissible Sink current n > nG V DC Condition: Alarm operatingvoltage UBA max. S Type Condition: mA Alarm outputvoltage UA High V DC Condition: Isink = mA Alarm signal-data Alarm outputvoltage UA Low Condition: Isource - Alarm signal for speed monitoring. - Signal output via open collector. - The fan emits a high continuous signal during trouble-free operation within the permissible voltage range. - Low signal when speed limit is not reached. - After elimination of fault, the fan returns to its desired speed; the alarm signal reverts to high. Page Attention: With these fan specials, deviations as regards temperature range, voltage range and power consumption are possible compared with standard fans. Electrical connection Fan Supply Voltage UB Customer (+) Power t UB UB t2 +UBS output Isink n Speed n>nG locked n=0 min-1 n>nG nG t US (-) Power UA UAHigh=UBA Alarm Signal UALow All voltages measured to ground. External load resistance Ra from UA to UBA required. With VARIOFANs with external temperature sensor for controlling the motor speed, the NTC sensor is not included in the scope of delivery. Temperature sensor LZ 370, see Accessories. 94 n>nG n<nG *) t 2 = Alarm signal suppression during start-up * n < speed limit nG by braking or blocking. t Technology 20 15 * 1500 100 45 60 n > nG 0 60 20 15 * 1500 100 45 2 60 n > nG 0 60 20 15 * 1150 100 45 n < nG 2 60 n > nG 0 60 20 15 * 850 100 45 0.4 n < nG 2 60 n > nG 0 60 20 15 * 1250 50 54 7214 N/17 0.4 n < nG 2 60 n > nG 0 60 15 15 * 1330 60 57 DV 6224/17 0.4 n < nG 2 60-28 n > nG 0 60 10 10 4 * 1900 100 61 2 60 4312/17 T VARIOFAN 0.4 n < nG 2 4314/17 V VARIOFAN 0.4 n < nG 4318/17 V VARIOFAN 0.4 5112 N/17 Specials n < nG Page ACmaxx 0.4 Condition: 4312/17 MV VARIOFAN min -1 DC Radial Fans 60 V DC Fan description Alarm delaytime t2 0 mA Speed limit nG Max. permissibler Sink current n > nG V DC Condition: Alarm operatingvoltage UBA max. S Type Condition: mA Alarm outputvoltage UA High V DC Condition: Isink = mA Alarm signal-data Alarm outputvoltage UA Low Condition: Isource = DC Axial Fans Available on request: - With integrated signal latching for subsequent recognition of short-time faults. - Alarm circuit open collector or TTL. - Galvanically isolated for maximum device safety; Defects in the power circuit do not affect the alarm circuit. AC Axial Fans * After switching on UB Accessories AC Radial Fans Attention: With these fan specials, deviations as regards temperature range, voltage range and power consumption are possible compared with standard fans. 95 Alarm signal /19 Alarm delaytime t2 0 60 20 15 * 1500 100 35 60 n < nG 0 60 20 15 * 1500 100 44 2 60 n < nG 0 4.5-60 10 10 4 * 1800 20 57 n > nG 2 28 n < nG 0 16-28 10 10 4 * 1900 100 59 0.4 n > nG 2 28 n < nG 0 16-28 10 10 4 * 1900 100 76 0.4 n > nG 2 28 n < nG 0 16-28 10 10 4 * 1900 100 82 V DC 0.4 n > nG 2 60 4312 /19 0.4 n > nG 2 7214 N /19 0.4 n > nG 6224 N /19 0.4 RLF 100-11/14 /19 RER 101-36/18N /19 H Speed limit nG 8314 /19 H Condition: mA Fan description Max. permissibler Sink current n < nG V DC Condition: Alarm operatingvoltage UBA max. S Type Condition: mA Alarm outputvoltage UA High V DC Condition: Isink = mA Alarm signal-data Alarm outputvoltage UA Low Condition: Isource = - Alarm signal for speed monitoring. - Signal output via open collector. - The fan emits a low continuous signal during trouble-free operation within the permissible voltage range. - High signal when speed limit is not reached. - After elimination of fault, the fan returns to its desired speed; the alarm signal reverts to low. min -1 Page * After switching on UB Attention: With these fan specials, deviations as regards temperature range, voltage range and power consumption are possible compared with standard fans. Available on request: - With integrated signal latching for subsequent recognition of short-term faults. - Alarm circuit open collector or TTL. - Galvanically separated for max. device safety; defects in power circuit have no effect on the alarm circuit. Electrical connection Fan Supply Voltage UB Customer (+) Power UB t UB t2 +UBS nG Speed n>nG output Isink locked n=0 min-1 n>nG n>nG n<nG *) t US (-) Power Alarm Signal UA UALow All voltages measured to ground. External load resistance Ra from UA to UBA required. 96 t 2 = Alarm signal suppression during start-up. * n < Speed limit nG by braking or blocking. UAHigh=UBA t Technology - Alarm signal for speed monitoring. - Signal output for open collector. - The fan emits a high continuous signal during trouble-free operation within the permissible voltage range. - Low signal when speed limit is not reached. - After elimination of fault, the fan returns to its desired speed; the alarm signal reverts to high. DC Axial Fans Alarm signal /37 28 10 <1 * 0 29 28 n > nG 0 28 10 <1 * 0 33 2 28 n > nG 0 28 10 <1 * 0 37 2 28 n > nG 0 28 10 <1 * 0 37 n nG 2 3412 N/37 GMV 0.4 n nG 3412 N/37 GV 0.4 n nG Page Specials 0.4 Speed limit nG 28 min -1 DC Radial Fans 0 2 Fan description n > nG n nG Condition: Max. permissibler Sink current Isink S V DC Alarm delaytime t2 Alarm operatingvoltage UBA max. 8412 N/37 GMLV Condition: Isource = 0.4 mA mA Condition: 612 N/37 GNV V DC Alarm outputvoltage UA High V DC mA Condition: Isink = Type Condition: Alarm signal data Alarm outputvoltage UA Low Available on request: - Alarm circuit TTL compatible. * After switching on UB Supply Voltage UB Customer (+) Power UB t UB t2 +UBS nG output Isink Speed n>nG n>nG *) locked n=0 min-1 US AC Radial Fans Fan AC Axial Fans Electrical connection ACmaxx Attention: With these fan specials, deviations as regards temperature range, voltage range and power consumption are possible compared with standard fans. t (-) Power UAHigh Alarm Signal UALow All voltages measured to ground. External load resistance Ra from UA to UBA required. t Accessories UA t 2 = Alarm signal suppression during start-up. * n < Speed limit nG by braking or blocking. 97 Alarm signal /39 S Fan description mA Speed limit nG V DC Condition: Max. permissibler Sink current Isink mA Alarm delaytime t2 Alarm operatingvoltage UBA max. V DC Condition: Isource = mA Condition: Alarm outputvoltage UA High V DC Condition: Isink = Type Condition: Alarm signal-data Alarm outputvoltage UA Low - Alarm signal for speed monitoring. - Signal output via open collector. - The fan emits a low continuous signal during trouble-free operation within the permissible voltage range. - High signal when speed limit is not reached. - After elimination of fault, the fan returns to its desired speed; the alarm signal reverts to low. min -1 Page * * 0 23 0 23 * * * 0 26 0 28 0 28 * * 0 37 0 37 0 41 0 41 <1 * * * 0 41 <1 * 0 41 4 <1 * 0 47 4 <1 * 0 47 412 /39 0.5 n > nG 2 28 n = nG 0 28 10 <1 412 /39H 0.5 n > nG 2 28 n = nG 0 28 10 <1 612 /39FL 0.5 n > nG 2 28 n = nG 0 28 10 <1 614 N /39M 0.5 n > nG 2 28 n = nG 0 28 10 <1 618 N /39 N 0.5 n > nG 2 28 n = nG 0 28 10 <1 3412 N/39 H 0.5 n > nG 2 28 n = nG 0 28 10 <1 3414 N/39 HH 0.5 n > nG 2 28 n = nG 0 28 10 <1 4412 F/39 GL 0.5 n > nG 2 28 n = nG 0 28 10 <1 4414 F/39 0.5 n > nG 2 28 n = nG 0 28 10 <1 4418 F/39 0.5 n > nG 2 28 n = nG 0 28 10 4414 FN/39 H 0.4 n > nG 2 30 n = nG 0 30 4 4214 /39 H 0.4 n > nG 2 30 n = nG 0 30 4218 /39 H 0.4 n > nG 2 30 n = nG 0 30 * after switching on UB Attention: With these fan specials, deviations as regards temperature range, voltage range and power consumption are possible compared with standard fans. Electrical connection Fan Supply Voltage UB Customer t (+) Power UB UB Speed nG *) locked n=0 min-1 +UBS n>nG t output Isink US UA t2 Alarm Signal UAHigh (-) Power UALow All voltages measured to ground External load resistance Ra from UA to UBA required. 98 t 2 = Alarm signal suppression during start-up * n < Speed limit nG by braking or blocking t Technology DC Radial Fans - "Software instead of hardware" - aptly describes the unique fan concept, equipped at the plant with tailor-made intelligence for cooling electronics. - Flexible configuration using software, allows quicker availability, sampling from the factory and the ability to supply customer-specific solutions in any quantity. DC Axial Fans Vario-Pro(R) Alarm- and tacho functions - Optional alarm/or tacho function - Selectable alarm speed limit (with hysteresis) and alarm delay time - Latching of alarm signal - Delay only when starting or permanently active - Output signal "High" or "Low" in case of alarm - Optional alarm when temperature sensor fails. - Optional alarm in case of excess temperature. Motor management - High control accuracy due to digital motor management - Higher operating efficiency due to optimum adaption of motor hardware and software. Fan series Page Fan series Page Fan series Page 620 27 DV 4100 51 RL 90 N 75 8400 N 33 5200 N 52 RLF 100 76 8300 35 DV 5200 53 RG 90 N 77 8200 J 36 5100 N 54 RG 125 N 78 3400 N 37 5300 55 RG 160 N 79 3300 39 7100 N 56 REF 100 81 3200 J 40 7200 N 57 RER 101 82 4400 FN 42 6300 58 RER 125 N 83 4300 44 6200 N 59 RER 160 N 84 4200 47 DV 6200 61 4100 N 48 6400 63 4100 NH 49 DV 6400 65 4100 NH 7-8 50 Accessories AC Radial Fans AC Axial Fans ACmaxx Externally Speed setting - Speed Setting via temperature, PWM or analog control voltage. On Page 100 (Speed setting). - Description of speed curve with up to 14 selectable interpolation points. Linear interpolation between the points. - 0 rpm. possible. - Recognition of sensor failure: In case of loss of sensor, the fan operates at programmable (fail-safe) speed. Specials Vario-Pro-Features 99 Speed setting with temperature T I - ebm-papst fans can come equipped with optional fan speed control. - Temperature, analog voltage or a PWM can serve as control variables. External Temperature sensor Type T Internal Temperature sensor Type I - Ext. NTC type LZ370 is required (not included in the standard scope of delivery). - NTC integrated in fan hub. Fan Fan Customer Customer (+) Power (+) Power (+) Internal Ref. (+) Internal Ref. Input Input NTC NTC (-) 0V Ground (-) 0V Ground Standard speed-temperature curve for type T and type I Optionally available with user-selectable temperature-speed curve control nmax nmax nmin S S nmin S 30C nmin 1/2 nmax Tmin 30 C; Tmax = 50 C 100 50C S Tmin nmin 800 1/min Tmin 5 C Tmax nmax model-dependent Tmax 85 C, model-dependent PWM DC Radial Fans DC Axial Fans A Technology Speed Setting with control voltage or PWM Speed setting via control voltage Type A - Optional control range 0 ... 10 V. - Standard control range 0 ... 5 V. Customer Fan Customer (+) Power (+) Power Input Input Specials Fan (-) 0V Ground ACmaxx (-) 0V Ground Speed setting via PWM Type P Fan Customer (+) Power - Speed setting via PWM signal that is user generated as a controlled variable. PWM signal: 2 KHz (0-100 %) Open collector input AC Axial Fans (+) Internal Ref. Input Optional - selectable curve P / A nmin nmin 0 0 S0 100 % PWM 5V (Optional) 10 V A S nmax S nmax 0 0 S0 100 % 5V (Optional) 10 V PWM Accessories Standard curve P / A AC Radial Fans (-) 0V Ground A 101 Protected Fans against environmental influences HP U S P IP54 - Meeting special requirements for a broad range of applications. - Resistant to environmental influences, such as dust, splash water, humidity, spray water and salt fog. - Highly competent solutions for adapting fans to environmental conditions. Humidity protection A coating on the motor and printed circuit board protects against humidity and condensation. IP 54 protection The motor and circuit board are coated to protect them against splash water and humidity. High protection classes up to IP 67 are available on request. Salt fog protection Salt fog is extremely demanding on the resistance of the product. ebm-papst make use of technologies that protect fans and blowers from salt fog reliably and durably. Stainless steel bearings Special bearings made of stainless steel provide additional protection. The solutions that are available and in use can differ depending on size. We would be glad to develop solutions tailored for the demands of your application. 102