NSK Megatorque PS Series User Manual

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7.2.8. Position Feedback Signal
 The position feedback signal monitors the rotational amount of the Motor in øA/øB format and
the Motor reference position by the øZ pulse.
 The signal can be used for controlling the position scale in the master controller.
 The total edge count number of øA and øB pulses for a one revolution of the Motor can be freely
divided by the parameter FR (Feedback signal resolution).
The number of the øZ pulses for one revolution of the Motor is 80 pulses.
◊ The parameter FZ (Feedback phase Z configuration) specifies the signal configuration
of phase Z.
Fig 7-19: Position feedback signal
ø A/øB
generation
øZ
generation
CN2: CHA
CN2: CHB
CN2: CHZ
Parameter FZ
2 621 440
80
Offset of home
position
Parameter FD
Monitor FK
2 621 440
Parameter FR
Position scale
based on the user
home position*
Position scale
based on the Motor
home position
*
Refer to “6.2.3. Setting Home Position” for the
user home position ans the Motor home
position.
Table 7-27: Input/Output and parammeters related to the position feedback signal.
Category Name (code) Function
Initial
setting
Range/Description Unit
CHA
Position feedback signal øA –
¼CHA
Position feedback signal ø¼A –
CHB
Position feedback signal øB –
¼CHB
Position feedback signal ø¼B –
CHZ
Position feedback signal øZ –
Control output
¼CHZ
Position feedback signal ø¼Z –
• The pulse signal that indicates number of Motor
rotation.
• The signal format is the line driver format. .
• Number of outputting pulses of øA and øB in
one revolution can be freely divided.
ÌFD
Specifies the leading phase of
feedback signal.
0
0: The leading phase is øA in the
CW.
1: The leading phase is øB in the CW.
–
ÌFZ Specifies configuration of øZ. 0
0: øZ configuration
1: MSB configuration
–
ÌFR Feedback signal resolution 81 920
0: Prohibit to output øA/øB.
1 to 5 242 880
count/rev.
Parameter
VL
¼
Pulse generating speed limiter. 10.000 0.001 to 10.000 s
-1
Monitor
FK
Reads out the total edge count
number of øA and øB.
0 -2 147 483 648 to 2 147 483 647 count
★: Requires the password.
¼
: Automatically set by the parameter FR.

NSK Megatorque PS Series Specifications

General

Brand	NSK
Model	Megatorque PS Series
Category	Engine
Language	English