Rockwell Automation 1336T Master/Slave Parallel AC Drv - Manual (Page 7)

1336 FORCE-5.19 – August, 2000
Introduction 1-3
The Slave drive receives the stationary current commands, speed
feedback and PWM carrier reference from the Master drive. Each
drive maintains its own system-level communication as well as
(enable, start, stop and faults). In this application, each inverter
regulates its own current, relying on the current regulator to reject the
disturbance presented by the other inverter. With sufficiently high
PWM carrier (1.5-2.0 kHz) the current ripple due to this disturbance
rejection is acceptably limited. The Master/Slave drives are connected
via an interconnect cable providing current references and control
information as well as high speed fault protection. Special control
boards which are unique to both the Master and Slave allow the
Master Drive to control both drives using the standard 1336 FORCE
parameter set.
Figure 1.2
1336 FORCE Model Reference Adaptive Control & Parallel Drive
Configuration