Yaskawa Sigma Mini - Manual (Page 53)

2.2Setting Parameters According to Host Controller
— 2-9 —
2.2 Setting Parameters According to Host Controller
This section describes how to connect a Σ-Series Servo to a host controller and how to
set parameters.
2.2.1 Speed References
Input a speed reference by using the following input signal “speed reference input.” Since this
signal can be used in different ways, set the optimum reference input for the system to be
created.
CN1-12
CN1-13
Speed reference input
(analog voltage input) V-REF (T-REF)
SG
Servopack
Speed reference
(Torque reference)
Torque reference input
(analog voltage input)
: Twisted-pair cable.
→ Input V-REF CN1-12
Speed Reference Input For Speed/Torque
Control
→ Input SG CN1-13
Signal Ground for Speed
Reference Input
For Speed/Torque
Control
Use these signals when speed control is selected (bits
A and B of memory switch Cn-01).
For ordinary speed control, always wire the V-REF
and SG terminals.
Motor speed is controlled in proportion to the input
voltage between V-REF and SG.
Setting Example
Cn-03 = 500: This setting means that 6 V is equivalent to rated speed (3000 min −1 )
Examples:
+6 V input → 3000 min
−1 in forward direction
+1 V input → 500 min −1 in forward direction
−3 V input → 1500 min −1 in reverse direction
2
Speed/Torque
Reference
speed
Standard
setting
Input voltage (V)
Set the slope in
Cn-03 (VREFGN).
−1500
−3000
−4500
(min −1 )