12
E300 Installation and Commissioning Guide
Issue Number: 1
2.5.3 RFC- S
R
otor
F
lux
C
ontrol for
S
ynchronous permanent magnet brushless motors
RFC-S
provides closed loop control with position feedback device.
With position feedback
For use with permanent magnet brushless motors with a feedback device installed. The drive directly controls the speed of the motor using the
feedback device to ensure the rotor speed is exactly as demanded. Flux control is not required because the motor is self excited by the permanent
magnets which form part of the rotor. Absolute position information is required from the feedback device to ensure the output voltage is accurately
matched to the back EMF of the motor. Full torque is available all the way down to zero speed.
Sensorless mode without position feedback for rescue operation
Sensorless mode provides closed loop control without the need for position feedback by using current, voltages and key motor parameters to
estimate the motor speed.
2.6 Compatible position feedback devices
Table 2-4 Supported feedback devices
* Only BiSS type C encoders are supported.
** This feedback device provides very low resolution feedback and should not be used for applications requiring a high level of performance.
Encoder type
Drive encoder type
(C01)
Quadrature incremental encoders with or without marker pulse
AB (0)
Quadrature incremental encoders with UVW commutation signals for absolute position for permanent magnet motors
with or without marker pulse
AB Servo (3)
Forward / reverse incremental encoders with or without marker pulse
FR (2)
Forward / reverse incremental encoders with UVW commutation signals for absolute position for permanent magnet
motors with or without marker pulse
FR Servo (5)
Frequency and direction incremental encoders with or without marker pulse
FD (1)
Frequency and direction incremental encoders with UVW commutation signals for absolute position for permanent
magnet motors with or without marker pulse
FD Servo (4)
Sincos incremental encoders
SC (6)
Sincos incremental with commutation signals
SC Servo (12)
Heidenhain sincos encoders with EnDat comms for absolute position
SC EnDat (9)
Stegmann sincos encoders with Hiperface comms for absolute position
SC Hiperface (7)
Sincos encoders with SSI comms for absolute position
SC SSI (11)
Sincos incremental with absolute position from single sin and cosine signals
SC SC (15)
SSI encoders (Gray code or binary)
SSI (10)
EnDat communication only encoders
EnDat (8)
BiSS communication only encoders* (not currently supported)
BiSS (13)
UVW commutation only encoders** (not currently supported)
Commutation only (16)
Summary of Contents for E300 Series
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