LOTO Trainer for HV Vehicles (Fault Simulator included)

The LOTO for HV Vehicles Training System (CX3226-1A) combines a compact benchtop unit with practical isolation procedures and offers the ideal introduction to working safely with high-voltage systems. It thus lays an important foundation for working in accordance with IMI Level 3 and other internationally recognised qualifications.

Key features of the training system:

• Practical learning content for the systematic execution of isolation procedures
• Didactic representation of a real high-voltage system (400 V DC DC link)
• Integrated OBD tester for reading error codes, isolation of circuits and triggering of faults
• All standard methods for vehicle isolation on a clearly laid-out front panel:
  • High-voltage service disconnect on the HV battery (orange disconnect plug)
  • 12 V service maintenance connector (green disconnect plug)
  • Emergency low-voltage disconnect point (cutting loop) and HV fuse
  • Tester-guided isolation
• Integrated red safety box for the secure storage of removed disconnectors
• Complete on-board electrical system with DC/DC converter, high-voltage relays (HV+, HV-, PRE), inverter for DC/AC conversion and drive motor
• Testing of potential equalization on actual housing components
• Digital DC-LINK voltage display and high-intensity status LEDs (KEY, READY, warning LEDs) for clear visualisation of system states
• Activation of the vehicle system via a smart key

Scope of supply:

• Training system “LOTO for HV Vehicles Training System” (CX3226-1A)
• PH2 screwdriver
• Equipotential bonding cable with fault
• Operating instructions

Set-up of the training system:

• Well-organised front panel in a tabletop housing with clearly separated colour-coded zones for various high-voltage components and the on-board power supply
• Digital 400 V DC DC link voltage display (DC LINK)
• High-voltage battery with contactors (HV-, PRE, HV+)
• HV Manual Service Disconnect (orange disconnect plug)
• 12 V service disconnect (green disconnect plug)
• Red safety box for storing removed plugs
• Emergency disconnect point (cutting loop) and HV fuse
• Diagram of power electronics (inverter, DC/DC converter) and 3-phase drive motor
• Main switch (ON/OFF), START and BRAKE buttons
• Status LEDs for KEY, READY and warning indicators
• Smart Key for system activation
• Safety test sockets (4 mm) with internal protective impedances to ensure the safety of trainees

Practical training content:

• Correct selection and testing of suitable measuring and testing equipment (e.g. multimeter)
• Carrying out isolation procedures on the high-voltage system
• Various methods for isolating the vehicle using the live-dead-live test:
  • High-voltage service disconnect on the high-voltage battery
  • 12 V service maintenance connector
  • Emergency low-voltage disconnect point and fuse
  • Tester-guided isolation
• Measurement of potential equalization with potential for error
• Condition monitoring and fault-finding via status LEDs and DC-LINK display
• Over 10 different fault-switching options for in-depth diagnosis of a high-voltage system

Dimensions and power supply:

• Power supply: AC 230 V 50–60 Hz
• Dimensions: 456 x 297 x 120 mm (WxDxH)
• Weight: approx. 3 kg