YASKAWA G7 Series User Manual

Continuing Operation
6-63
Speed Search after Short Baseblock (during Power Loss Recovery, etc.)
• Loss Time Shorter Than the Minimum Baseblock Time (L2-03)
Fig 6.43 Speed Search after Baseblock (When Estimated Speed: Loss Time Is Set in L2-03)
•
Loss Time Longer Than the Minimum Baseblock Time (L2-03)
Fig 6.44 Speed Search After Baseblock (Estimated Speed: Loss Time > L2-03)
Current Detection Speed Search
The time charts for current detection speed search is shown below.
Speed Search at Startup
The time chart when speed search at startup or external speed search command is selected is shown below.
AC power supply
Output frequency
Output current
OFFON
Start using
speed detected
Set frequency
reference
Minimum baseblock time (L2-03) x 0.75*1
10 ms
*1 Baseblock time may be reduced by the output frequency
immediately before the baseblock.
*2 After AC power supply recovery, motor waits for the
minimum Speed Search Wait Time (b3-05).
*2
AC power supply
Output frequency
Output current
OFFON
Start using speed detected
Set frequency
reference
Minimum baseblock time
(L2-03)
10 ms
Speed Search Wait Time
(b3-05)
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

YASKAWA G7 Series Specifications

General

Series	G7
Frequency	50/60 Hz
Output Voltage	Matches Input Voltage
Control Method	V/f Control
Overload Capacity	150% for 60 seconds
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheating, Short Circuit
Communication	RS-485, Modbus, DeviceNet, Profibus, Ethernet
Safety	Safe Torque Off (STO)
Operating Temperature	-10°C to 50°C
Humidity	5% to 95% (non-condensing)
Cooling Method	Fan Cooled
Enclosure Rating	IP20
Storage Temperature	-20°C to 65°C