Which indicator is illuminated when the torque split exceeds 15%?

Which indicator is illuminated when the torque split exceeds 15%?

• A. VAR NR caution
• B. MASTER WARNING
• C. OIL PRESSURE
• D. FUEL LOW

Answer: (A)

When two drives share the load, the control system watches how evenly the torque (or rotor speeds) is distributed. If one side delivers noticeably more torque than the other, the drivetrain can become stressed from the imbalance. A preset limit is set—15% in this case—and if the split goes beyond that, the system flags a warning. The VAR NR caution is specifically used to warn about this variation in the two outputs, i.e., the torque/rotation difference between the sides. That’s why this indicator illuminates for a torque split exceedance. Other lights relate to different fault conditions: a general master warning covers multiple faults, oil pressure points to lubrication issues, and fuel low signals insufficient fuel. None of those directly indicate an imbalance in torque between two drives, so the VAR NR caution is the correct warning for this scenario.

When two drives share the load, the control system watches how evenly the torque (or rotor speeds) is distributed. If one side delivers noticeably more torque than the other, the drivetrain can become stressed from the imbalance. A preset limit is set—15% in this case—and if the split goes beyond that, the system flags a warning. The VAR NR caution is specifically used to warn about this variation in the two outputs, i.e., the torque/rotation difference between the sides. That’s why this indicator illuminates for a torque split exceedance.

Other lights relate to different fault conditions: a general master warning covers multiple faults, oil pressure points to lubrication issues, and fuel low signals insufficient fuel. None of those directly indicate an imbalance in torque between two drives, so the VAR NR caution is the correct warning for this scenario.