2.9 n: Special Adjustments
YASKAWA ELECTRIC TOEP C710687 03B FSDrive-MV1000 Parameter Guide 225
u n7: Synchronous Transfer with a Commercial Power Supply (Available from the
Drive Software Versions S0103 and Later.)
The Synchronous Transfer cannot be used when A1-02 is set to 2 (Open Loop Vector Control).
n
System Configuration
Figure 2.81 shows the system configuration for Synchronous Transfer.
To perform a Synchronous Transfer, the following devices and interface must be connected in addition to the standard
connections for the drive.
External sequence circuits for Synchronous Transfer are also required.
Figure 2.81
Figure 2.81 Synchronous Transfer System Configuration
• Inside drive
<1> The breaker command requires a separate relay that satisfies the specifications of the breaker to be used.
: Input voltage detection circuit, contact circuits (DI and DO)
<1>, external terminals for interface
• Drive/external sequence circuits : Synchronous Transfer command from drive to commercial power supply (DI), Synchronous Transfer
command from commercial power supply to drive (DI), completion signal for Synchronous Transfer
(DO)
• Drive/motor : Reactor, drive secondary side breaker
• Commercial power supply/motor : Commercial power supply side breaker, commercial power supply current detector (phase R and T)
• Drive/breaker : Close command for drive secondary side breaker (DO), close signal for drive secondary side breaker
(DI), close command for commercial power supply side breaker (DO), close signal for commercial
power supply side breaker (DI)
Drive
M
Synchronous Transfer Command
Synchronous Transfer Command
from Drive to Commercial Power Supply (DI)
Synchronous Transfer
Command from Commercial
Power Supply to Drive(DI)
Close Command (DO)
Close Command (DO)
Commercial
Power Supply
Current Detector
Commercial
Power Supply
Drive secondary
side breaker
Commercial power
supply side breaker
Close Signal (DI)
Close Signal (DI)
Transfer Device
Completion Signal for
Synchronous Transfer
Reactor
Motor
External Command
MV1000ParameterGuide_E_conditional.book 225 ページ ２０１３年１０月１１日 金曜日 午後８時１８分
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