Technical data:
- Power supply: DC12V
- Maximum current per output: 5A (the three outputs together cannot exceed 9A!)
- Output: first channel 20% -100% or 40% -100% (TFL = ON), second and third channels 10% -100%
- The lower limit of the second and third channels can be adjusted with potentiometers.
- Temperature probe parameters: NTC 50K B3950
- Temperature probe tolerance: 3-5%
- Temperature probe wire length: 100mm
- Alarm signal lower limit: 700-800rpm
- Alarm piezo wire length: 200mm
- Fan connectors: 2.54mm pin connector, male
- 4-wire fans can be controlled (+, -, speed, PWM)
- The control is done on the PWM pin, the input power supply goes directly to the fans (+ and - pins), so the three-wire fans can NOT be controlled, in this case only the alarm function works.
- The module does not have a power stage on the PWM pin, so it cannot be used for 2 or 3-wire fans (it is forbidden to connect the + wire of the fan to the PWM pin)!
- Dimensions: 43.5 x 51 x 15mm

Function setting switch:
(For new configuration, the module must be de-energized.)

TFL (1) / FAN1 PWM setting:
- ON: FAN1 PWM minimum 40%
- OFF: FAN1 PWM minimum 20%.

TP1 and TP2 (2 and 3) / Temperature zone setting:
(must be used together with the temperature probe)
Starts to increase the speed at the first temperature value
at the second temperature value the speed is 100%.
TP1 | TP2
OFF | OFF 35...45°C
ON | OFF 40...55°C
OFF | ON 50...70°C
ON | ON 60...90°C

BF1 and BF2 (4 and 5) / FAN1 and FAN2 stop alarm function
- gives an audible and visual alarm if the fan stops. When the fault disappears, the alarm is automatically switched off.
If both BF1 and BF2 are ON, either or both of FAN1 or FAN2 will stop, the controller will alarm!

Package contents:
1x speed control module
1x temperature probe (NTC-50K B3950)
1x Buzzer (2.5kHz)

For 4-wire fans!