GU-D08 80173-109-01 G651854D 2H060318-041 | Communication Integrated Thyristor Board

1. Motor Thermal Overload — Modified algorithm for self ventilated motor options to work above 150% of base motor speed, P629 = 3 or4.
2. Process Trim — Enhanced process trim regulator for enable/disable from logic command when using process trim velocity limiter function. The Process Trim Select (P628 = 0) had to be used instead of Logic Command bit to disable Process Trim.
3. Velocity Regulator — Modified integrator in the PI regulator for current limit switching. Example: switch from motoring to regen or vice versa.
4. CEMF regulator — Modify IR compensation so that 1PU CEMF is now equal to 100% at FULL LOAD. Previously, 1PU was the motor nameplate voltage at no load. Old: CEMF = Terminal Volts – IR New: CEMF = (Terminal Volts – IR)/(1 – R) 5. Field Flux Auto Tune Enhanced
a. Allow CEMF regulator to trim flux reference to near zero (formerly limited to 10% minimum) during autotune