ACiON Handbrake Deactivation
Critical: This procedure modifies handbrake operation. Only perform if authorised and necessary. Always conduct an operational test after completion.
Objective: Deactivate the handbrake delay time by setting the parameter from 4.0 seconds to 0 on the AC3MT2C inverter via Display 15251.
Power on the system and access Display 15251
Note: Ensure the display is showing the main menu before proceeding.
Navigate to and select ZAPI Console on the display
Use the navigation buttons to scroll through menu options until you reach the ZAPI Console option.
Scroll down through the menu until you see AC3MT2C Inverter
Important: Make sure you select the correct inverter. The AC3MT2C is the traction inverter.
- 1 Press Enter to select the inverter
- 2 Press Enter again until you see Parameter Change displayed on screen
Tip: You may need to press ENTER multiple times to cycle through menu options until Parameter Change appears.
Press Enter on Parameter Change
This will open the list of configurable parameters.
Scroll down through the parameter list until you see Handbrake Time
Current display value:
Press the Left Button repeatedly to reduce the value from 4.0 to 0
Action Required: Keep pressing the left button until the display shows 0.0
Once the value reads 0 press the Middle Button
- 1 The display will show "Are you sure?"
- 2 Press Middle Button again to confirm YES
Critical: This saves the new parameter value to memory. Do not power off until confirmation is shown.
Power Cycle:
- 1 Turn the key OFF
- 2 Wait 5 seconds
- 3 Turn the key back ON
Operational Test Required:
- Test handbrake operation in a safe area
- Verify immediate response (no 4-second delay)
- Check all safety systems function correctly
- Document test results in service log
Procedure Complete
Handbrake time parameter successfully set to 0. Ensure operational test has been documented in service records.
- Only authorised personnel should perform this procedure
- Ensure vehicle is in a safe location before starting
- Document all parameter changes in service records
- Setting handbrake time to 0 removes the delay completely
- If issues occur, restore parameter to 4.0 and contact technical support