EPALM10-DA71 paddle shifters

EPALM10-DA71 paddle shifters
EPALM10-DA71 is a Hand Operated Pitch Controller in the UniOP series. This device is designed specifically for the blade pitch control system of wind turbines and serves as a key human-machine interaction terminal for manually adjusting the blade pitch angle inside the nacelle.

1. Core features and functions
Pitch control core: This handheld controller is the core control terminal of the wind turbine pitch system. The operator directly controls the pitch angle of the blades through it to adjust the power output of the generator set and the safety of the wind turbine.
IP65 protection level: With an IP65 protection level, it can effectively prevent dust from entering and resist water sprayed from all directions, adapting to harsh environments such as humidity or water mist inside the cabin.
Communication capability: This model is typically equipped with Ethernet or Profibus DP interfaces (depending on the specific version), supporting high-speed communication with pitch controllers (such as EPAC, EPAV series) inside the cabin.
Safety design: Built in emergency stop (E-Stop) button, equipped with an enable switch, usually supporting two or three position (Normal, Enable, Disable) switching, ensuring that the pitch command can be quickly cut off in emergency situations and ensuring the safety of the unit.
2. Main technical specifications
Parameter Description
Protection level IP65 (dustproof, splash proof)
Interface type Ethernet or Profibus DP (depending on specific sub model)
Control functions include pitch angle adjustment, manual/automatic mode switching, and emergency stop control
The supply voltage is usually 24V DC (depending on the wind turbine standard)
Portable handheld design with external dimensions, suitable for internal operations in the cabin
3. Typical application scenarios
Wind turbine generator set: mainly installed inside the wind turbine nacelle, serving as the main terminal for operators to manually control the blade pitch.
Cabin maintenance: During the maintenance or commissioning of the fan, use this manual controller for manual control testing.
Emergency response: In the event of a failure or malfunction of the automatic pitch control system, the operator can manually intervene using a manual controller to ensure the safe shutdown or resumption of operation of the fan.
4. Common faults and maintenance
According to the maintenance records, the following common faults may occur during the use of EPALM10-DA71, mainly concentrated in the power supply and display modules:

Display screen issues: black screen, blurred screen, white screen, dim backlight or backlight not working, etc.
Power on failure: No response when powered on, fuse burned, PWR light not on, unable to start up normally.
Communication failure: Communication with the cabin control system was interrupted, resulting in the inability to transmit pitch commands.
Button/touch malfunction: button damage, touch screen failure or misoperation, etc.
If the above problems occur, it is recommended to contact a professional repair service provider for inspection and repair, and do not disassemble it by yourself.