YASKAWA SGD7S series User Manual

6.9 Internal Set Speed Control
6.9.4 Changing Internal Set Speeds with Input Signals
6
Application Functions
6-57
An operating example of speed control with the internal set speeds is given below. This exam-
ple combines speed control with the internal set speeds with the soft start function. The shock
that results from speed changes is reduced by using the soft start function.
-SPEED1
Motor speed
+SPEED3
+SPEED2
+SPEED1
-SPEED2
-SPEED3
0
Speed 3
The acceleration/deceleration rates
are set in Pn305 and Pn306.
Stopped
Stopped
Speed 1
Speed 2
Speed 3
/SPD-A signal
/SPD-B signal
OFF
ON ON OFF OFF ON ON OFFOFF
OFF
ON
OFF OFF OFF OFF ON
ON ON
ON
ON OFF OFF ON ON OFF OFF
/SPD-D signal
Speed 1
Stopped
Speed 2

YASKAWA SGD7S series Specifications

General

Series	SGD7S
Safety	STO (Safe Torque Off)
Humidity	90% RH or less (non-condensing)
Control Method	PWM Control
Communication	EtherCAT, MECHATROLINK-III, MECHATROLINK-II
Output Power	0.1 kW to 15 kW
Feedback System	Incremental encoder, Absolute encoder
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overload, Overheating, Encoder Error
Ambient Temperature	0 to 55°C
Storage Temperature	-20 to 85°C
Vibration Resistance	5.9 m/s²
Installation	Panel mounted
Certifications	CE, UL, cUL