Mitsubishi Electric MR-J2S-A Instruction Manual page 360

15. ABSOLUTE POSITION DETECTION SYSTEM
(2) Sequence program example
(a) Conditions
1) Operation pattern
ABS data transfer is made as soon as the servo-on switch is turned on. After that, positioning
operation is performed as shown below.
address
After the completion of ABS data transmission, JOG operation is possible using the JOG or
JOG switch, and dog type home position return is possible using the home position return
switch.
2) Buffer memory assignment
For BFM#26 and later, refer to the FX
BMF No.
Upper 16 Lower 16
bits bits
#0
-
#2 #1
- #3
#5 #4
- #6
#8 #7
#10 #9
- #11
- #12
#14 #13
- #15
- #16
#18 #17
#20 #19
#22 #21
#24 #23
- #25
3) Instructions
When the servo-on switch and the COM of the power supply are shorted, the ABS data is
transmitted when the servo amplifier power is turned ON, or at the leading edge of the RUN
signal after a PC reset operation (PC-RESET). The ABS data is also transmitted when an alarm
is reset, or when the emergency stop state is reset.
If checksum discrepancy is detected in the transmitted data, the ABS data transmission is
retried up to three times. If the checksum discrepancy is still detected after retrying, the ABS
checksum error is generated (Y12 ON).
The following time periods are measured and if the ON/OFF state does not change within the
specified time, the ABS communication error is generated (Y11 ON).
ON period of ABS transfer mode (Y1)
ON period of ABS request (Y2)
OFF period of ready to send the ABS data (X2).
Home position
3)
300000
-1PG User's Manual.
2(N)
Name and symbol
Pulse rate
Feed rate
Parameter
Max. speed
Bias speed
JOG operation
Home position return speed (high speed)
Home position return speed (creep)
Home position return zero-point signal count
Home position address
Acceleration/deceleration time
Not usable
Target address (I)
Operation speed (I)
Target address (II)
Operation speed (II)
Operation command
15 - 39
WWW.NNC.IR
1)
0 300000
2)
Set value
A 2000
B 1000
H0000
Vmax 100000PPS
Vbia 0PPS
Vjog 10000PPS
V 50000PPS
RT
V 1000PPS
CL
N 2 pulses
HP
Ta 200ms
P(I)
V(I) 100000
P(II)
V(II)
H0000
Remark
Command unit: Pulses
Initial value: 10
0
Initial value: 100
0
Initial value: 10
0
10