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Sigma II User's Manual
Servo Amplifier Model
SGDH–
Speed Control Range
Speed
Regulation*
Perfor-
mance
Frequency Characteristics
Torque Control Tolerance (Repeatability)
Soft Start Time Setting
Speed
Reference
Input
Torque
Input
Reference
Signals
Input
Contact Speed
Reference
Bias Setting
Perfor-
Feed Forward Compensation
mance
Positioning Completed Width Setting
Reference
Pulse
Input
Signals
Control Signal
Built-in Open Collector Power Supply***
Note: * Speed regulation is defined as follows:
The motor speed may change due to voltage variations or amplifier drift and changes in processing resistance
due to temperature variation. The ratio of speed changes to the rated speed represents speed regulation due to
voltage and temperature variations.
** Forward is clockwise viewed from the non-load side of the servomotor, (counterclockwise viewed from the
load and shaft end).
***The built-in open collector power supply is not electrically isolated from the control circuit in the servo
amplifier.
A3
1:5000 (The lowest speed of the speed control range is the speed at which
the servomotor will not stop with a rated torque load.)
Load Regulation
0 to 100% load: 0.01% maximum (at rated speed)
Voltage Regulation
Rated Voltage ±10%: 0% (at rated speed)
Temperature Regulation
25 ± 25°C: ±0.1% max. (at rated speed)
400Hz (at J
±2%
0 to 10s (Can be set individually for acceleration and deceleration)
±6V
Reference Voltage**
torque reference with positive reference), input voltage: ±12V (maximum).
Input Impedance
About 14kΩ
Circuit Time Constant
—
±3V
Reference Voltage**
itive torque reference with positive reference), input volt
Input Impedance
About 14kΩ
Circuit Time Constant
About 47µs
Rotation Direction Selec-
With P control signal
tion
With forward/reverse current limit signal (speed 1 to 3 selection),
Speed Selection
servomotor stops or another control method is used when both are
OFF.
0 to 450rpm (setting resolution: 1rpm)
0 to 100% (setting resolution: 1%)
0 to 250 reference units (setting resolution: 1 reference unit)
Sign + pulse train, 90° phase difference 2-phase pulse (A phase + B
Type
phase), or CCW + CW pulse train
Form
Line driver (+5V level), open collector (+5V or +12V level)
Frequency
500/200kpps maximum (line driver/open collector).
Clear Signal (input pulse form identical to reference pulse)
+12V (1kΩ built-in resistor)
8-22
Chapter 8: Ratings and Characteristics
A5
01
02
04
J
)
L =
M
(Variable setting range: ±2 to ±10V
DC
(Variable setting range: ±1 to ±10V
DC
05
08
10
15
20
) at rated torque (positive
DC
) at rated torque (pos-
DC
30
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