YASKAWA SGMJV User Manual page 318

9.1 System Configuration and Connection Example for SERVOPACK with Fully-closed Loop Control
(3) Analog Signal Input Timing
The following figure shows the input timing of the analog signals.
When the cos and sin signals are shifted 180 degrees, the differential signals are the /cos and /sin signals. The
specifications of the cos, /cos, sin, and /sin signals are identical except for the phase.
Input the signals Ref and /Ref so that they shall cross each other as shown in the figure because they are input
into the converter. When they are crossed, the output data will be counted up.
cos /cos sin /sin
Input voltage range:
1.5V 3.5V
Ref /Ref
Input voltage range:
1.5V to 3.5V
cos
A+
/cos
A-
sin
B+
/sin
B-
/Ref
R-
Ref
R+
• Never perform insulation resistance and withstand voltage tests.
• When analog signals are input to the serial converter unit, noise influence on the ana-
log signals affects the unit's ability to output correct position information. The analog
cable must be as short as possible and shielded.
• Do not connect or disconnect the unit while power is being supplied, or the unit may
be damaged.
• When using multiple axes, use a shield cable for each axis. Do not use a shield cable
for multiple axes.
100%
45
5 to 75%
5 to 75%
Zero Point
9
9-5