Fuji Electric FRENIC-VG Series, User Manual

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6.6.10 Switching between multiwinding and single-winding motor
drive (Multiwinding system)
You can cancel the multi-winding motor
drive and switch to the normal
single-winding motor drive using the
external digital input signal MT-CCL.
Figure 6.6.8 shows a simple connection
example to switch between the
two-winding and single-winding motor
drive. In this case, the slave unit does not
need run commands as well as the PG and
NTC signal feedback. When switching the
motors, it is also required to switch the
PG and NTC signals in addition to the
secondary power line.
If switching is also required for the slave,
you need to manipulate the MT-CCL
signal.
Table 6.6.18 Multiwinding/Single-Winding Motor Switching Specifications
Item Function Setting Remarks
Function code
E01 to E13
Terminal [X1] Function 57
Cancel multiplex system MT-CCL
Function code o33 = 1 (Enable multiwinding system) and
Contact ON(closed): Single-winding motor drive (Cancel
multiwinding)
Contact OFF (opened): Multiwinding motor drive
Function code
E15 to E27
Terminal [Y1] Function 52
Answerback to cancellation of multiplex system MEC-AB
When the MT-CCL is reflected, the MEC-AB is issued
(Contact: ON)
Figure 6.6.11
Single-
winding
motor
Two-
winding
motor
FRENIC-VG
Slave
FRENIC-VG
Master
TBSI(MWS) TBSI(MWS)
Optical communication
Switch
[FWD]
[CM]
[MT-CCL]
PG PG
Switch