PWM Controller Features Reduces system power consumption and fan noise For PWM fan speed control, a PWM control circuit needs to be newly designed and configured. By using this product, however, PWM control function fans can be fully utilized without the need for preparing new circuits, contributing to reducing the system power consumption and the fan noise. Can be common-powered by the fan power supply The controller can be powered by the fan power supply of rated voltage 12, 24, and 48 VDC, and no separate supply is required. Maximum of four fans connectable Box type Up to four fans with PWM control function can be connected and controlled. PCB type Specifications Box type PCB type Model no. 9PC8666X-S001 9PC8045D-V001 9PC8045D-R001 9PC8045D-T001 Size mm 86 (H) 66 (W) 38 (D) 80 (H) 45 (W) 17 (D) Rated voltage V 12/24/48 Power consumption W 0.2* Operating temperature C -20 to +70 Input Input voltage range V (V+, V-) 7 to 60 terminal Control voltage range V 0 to 5.5 3 3 5 PWM signal output VOH (high level voltage): . or VDC selectable PWM frequency kHz 25 Output Output current 20 mA max. (total sum of 4 terminals) terminal 6 5 Output breakdown voltage V . No. of connectable fans Up to 4 fans Voltage control, Internal adjustment (variable Variable resistor Thermistor Control functions** resistor) control, External adjustment (variable Voltage control control*** control*** resistor) control***, Thermistor control*** Mounting method DIN rail mounting or screw mounting Screw mounting Mass g 110 27 Material Case: Plastic PCB: FR-4 * When output terminals are turned on. ** Control functions are mutually exclusive for Box type. *** Variable resistor and thermistor are not supplied with the controller and need to be prepared separately. Be noted that if applied input voltage or frequency is out of range of the connected fan, how the fan speed responds to the PWM duty cycle may be altered. Front View (component names) Box type PCB type Ground terminal Temperature selector switch (for thermistor control model only) Power supply input terminal Thermistor connection terminals Control voltage ground or variable resistor connection terminal Variable resistor Control voltage connection terminals input terminal Control function selector switch PWM output voltage V selector switch Input terminals PWM OHVOH PWM signal output terminalsPWM Adjustment knob PWM output voltagePWM V VOHOH selector switch PWM signal output terminals PWM 518 Connection Examples and PWM Signal Output Characteristics Controller can be common-powered by the power supply for 12, 24, and 48 VDC rated voltage fans. It can also be powered by a separate supply as long as both supplies share the same ground. Voltage control Output duty cycle controlled with input voltage of 0 to 5 VDC. *Ensure that the input voltage does not exceed 5.5 VDC. Box type DC power supply + GND Control Voltage - Control voltage Output Duty Cycle Characteristics + GND (%) 100 80 60 40 PWM signal PCB type (Model no.: 9PC8045D-V001) 20 0 1 2 3 4 5 (VDC) Control voltage PWM signal + GND + GND DC power supply Control voltage Internal adjustment (variable resistor) control Output duty cycle controlled with the adjustment knob. Box type Inner Scale Reading - DC power supply Output Duty Cycle Characteristics + GND (%) 100 75 50 25 PWM signal Output duty cycle controlled with the adjustment knob (on the inner scale) 0 25 50 75 100 (%) Inner scale reading with adjustment knob 519 Output duty cycle Output duty cycle PWM Controller