CLARK EUROPE GMBH MOTOR CONTROLLER MODEL FZ5035A 8064706 DULAC2 POWER 36/48V #13 12:52

The CLARK EUROPE GMBH FZ5035A (DULAC2) is a solid-state, programmable DC motor controller designed for electric industrial vehicles, such as forklift trucks. It acts as the “brain” of the vehicle, precisely regulating the power delivered from the battery to the traction motor based on input from the operator’s accelerator (potentiometer).

This model is a crucial component for ensuring smooth acceleration, controlled speed, regenerative braking, and overall protection of the vehicle’s electrical system.

Key Specifications from the Label

• Manufacturer: CLARK EUROPE GMBH

• Controller Model: FZ5035A

• Internal Model/Series: DULAC2

• Part Number: 8064706

• Operating Voltage: 36 Volts or 48 Volts DC (It is compatible with both system voltages, which is common for many forklift controllers).

• Current Rating: The “#13” often corresponds to a specific amperage rating. For the DULAC2 series, #13 typically indicates a 350 Amp controller. This is a high-current model suited for larger forklifts requiring significant power.

Typical Features and Functions

• Smooth Control: Provides infinite speed control from zero to full speed.

• Programmability: Can be configured with a proprietary handheld programmer (like a Clark “PIV” unit) to set parameters such as maximum speed, acceleration rates, deceleration rates, and diagnostic settings. This allows it to be tailored to specific vehicle and application needs.

• Diagnostics: Includes self-diagnostic capabilities and can store error codes (e.g., for over-temperature, over-current, throttle errors) to aid in troubleshooting.

• Protection Circuits: Built-in protection against:

  • Over-current

  • Short circuits

  • Low battery voltage

  • Over-temperature

  • Faulty throttle signal

• Regenerative Braking: Helps slow the vehicle by converting the motor’s momentum back into electrical energy, which is sent back to the battery. This improves brake life and increases efficiency.

Common Applications

This controller is found on a range of Clark electric material handling equipment, including:

• Electric Forklifts (e.g., CGP, CGD, CGE series models)

• Electric Reach Trucks

• Electric Pallet Jacks

Important Notes for Replacement/Repair

1. Exact Match Crucial: When replacing this controller, it is essential to match the model number (FZ5035A), part number (8064706), and the current rating (#13). Using an incorrect controller can damage the motor or other electrical components.

2. Programming: A new or replacement controller will often need to be programmed with the specific parameters for the vehicle it is being installed in. This requires a special Clark diagnostic programmer.

3. Voltage Check: Ensure your forklift’s battery system matches the controller’s voltage (36V or 48V).

4. Core Exchange: Many suppliers offer a “exchange” or “core” program where you return your old unit for a rebuilt one, often at a significant cost saving compared to a brand new controller.