YASKAWA G7 Series User Manual

6-18
Fig 6.19 Acceleration/Deceleration Time Gain Using an Analog Input
Entering S-curve Characteristics in the Acceleration and Deceleration Time
By performing acceleration and deceleration using an S-curve pattern, you can reduce shock when starting and
stopping the machine.
Using the Drive, you can set an S-curve characteristic time for each of the following: Acceleration start time,
deceleration start time, acceleration end time, and deceleration end time.
Setting Example
The S-curve characteristic when switching operation (forward/reverse) is shown in the following diagram.
Fig 6.20 S-curve Characteristic during Operation Switching
INFO
Set the S-curve characteristic time to lengthen acceleration/deceleration time as follows:
Acceleration time = Selected acceleration time + (Acceleration start time S-curve characteristic time +
Acceleration end time S-curve characteristic time) / 2
Deceleration time = Selected deceleration time + (Deceleration start time S-curve characteristic time +
Deceleration end time S-curve characteristic time) / 2
Acceleration/deceleration time gain (set value: 5)
(Acceleration/deceleration gain from 1 to
10 V) = 10 V/Input voltage (V) x 10 (%)
C2-02
C2-01
C2-03
C2-04
C2-02
C2-01
C2-03
C2-04
Forward
Reverse
Output frequency
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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