Product Description

Model Number Interpretation

• 27106: Base part number for GV3000 brake interface module.

• 28: 28 Ω nominal braking resistance.

• Y: Heavy-duty, high-energy dissipation, high cycling capability.

Technical Specifications

• Resistance: 28 Ω (±5%).

• Power Rating: 2.0 kW continuous; 6 kW peak (10% duty cycle).

• DC Bus Voltage: 380–460 VAC input (540–650 VDC bus).

• Switching Element: Wearless transistor switch (terminals 1(−)/2(+)).

• Control Logic: Closes when DC bus >50 V and braking current =0; opens during active braking.

• LED Indicator: Right LED ON when braking current (IB) >0.

• Enclosure: Open-frame PCB, panel-mount.

• Operating Temperature: 0°C to +55°C (extended range).

• Weight: ~0.6 kg (1.3 lbs).

Interface & Wiring

• DC Bus Terminals: Connect to drive’s DC+ / DC−.

• Resistor Terminals: 1(−) / 2(+) for external 28 Ω braking resistor.

• Control Signal: Tied to drive’s braking logic (no external wiring needed).

• LED Status: IB>0 (braking active) → ON; IB=0 → OFF.

Core Functions

• Regenerative Energy Dissipation: Converts motor regenerative energy to heat via external resistors, preventing DC bus overvoltage.

• Heavy-Duty Deceleration: Enables controlled, rapid stops for high-inertia loads (crushers, large conveyors).

• Overvoltage Protection: Shunts excess DC bus voltage during deceleration, safeguarding drive components.

• Status Indication: LED provides visual braking status for troubleshooting.

Compatibility

• Drive Series: GV3000/SE (Sensorless Enhanced), VTAC7 (HVAC).

• Drive Models: 25V4160, 25G4160, 25G4260, 3V4160, etc..

• Input Voltage: 380–460 VAC three-phase.

Installation & Maintenance

• Mounting: Secure to panel near drive; allow 70 mm clearance for airflow (extended cooling).

• Wiring: Use 12–14 AWG stranded wire for DC bus/resistor connections; torque terminals to 1.5 N·m.

• Pre-Power Check: Verify resistor resistance (28 Ω ±5%); check for short circuits.

• Maintenance: Inspect terminals semi-annually for looseness/corrosion; clean dust from PCB.

• Safety: Disconnect drive power and wait 5 minutes for DC bus discharge before service.