YASKAWA MP2000 Series User Manual page 155

7.2 Motion Command Details
7.2.3 Zero Point Return (ZRET)
Setting
Parameter
OW3C
N-OT & C pulse
16
N-OT Only
17
INPUT & C pulse
18
INPUT Only
19
( 2 ) Signals Used for Zero Point Return
The following table shows the details on the signals used for zero point return operation.
Signal
Name
Phase-C
ZERO
HOME LS
P-OT
N-OT
DEC1
DEC2
EXT
Reverse
LMT
Forward
LMT
INPUT
* 1. The polarity can be inversed by setting the fixed parameter No. 20, bit 1 (C Pulse Input Signal Polar-
* 2. The polarity can be inversed by setting the fixed parameter No. 1, bit 5 (Deceleration LS Inversion Selection).
7-16
Name
Uses the negative overtravel signal and
phase-C pulse.
Uses only the negative overtravel signal.
Uses the INPUT signal and phase-C
pulse.
Uses only the INPUT signal.
Polarity
Signal Allocation Inversion
Function
5 - 6 pin (Differen-
Valid
tial input)
General-purpose
Valid
DI_2 (pin No. 18)
General-purpose
Invalid
DI_3 (pin No. 14)
General-purpose
Invalid
DI_4 (pin No. 13)
General-purpose
DI_5 (pin No. 36) or
OW05, bit 8
Valid
General-purpose
DI_5 (pin No. 36)
Invalid
OW05, bit 9
Invalid
OW05, bit 10
Invalid
OW05, bit 11
ity Selection).
Method
N-OT: DI_4
N-OT: DI_4
This method must not be used if repeat
accuracy is required.
INPUT: OW05, bit B
INPUT: OW05, bit B.
This method must not be used if repeat
accuracy is required.
Latch
Function
Used as the zero point signal for zero
*1
Valid
point return
Used as the zero point signal for zero
Valid
point return
Used as the deceleration limit switch
*2
(LS) signal for zero point return
Valid
Used as the zero point signal for zero
point return
Used as the deceleration limit switch
(LS) signal for zero point return.
Invalid
Used as the deceleration limit switch
(LS) signal and the zero point signal for
zero point return.
Used as the deceleration limit switch
(LS) signal for zero point return.
Invalid
Used as the deceleration limit switch
(LS) signal and the zero point signal for
zero point return.
Used as the deceleration limit switch
Invalid
(LS) signal for zero point return.
Used as the zone signal and the deceler-
Invalid
ation limit switch (LS) signal for zero
*2
point return.
Used as the external input signal for the
external positioning command. Also
Valid
used as the input signal for the modal
latch function.
Used as the zone signal for zero point
Invalid
return.
Used as the zone signal for zero point
Invalid
return.
Used as the deceleration limit switch
(LS) signal for zero point return.
Invalid
Used as the zero point signal for zero
point return.
Signal Meaning
Zero Point Return
Description Methods (OW
That Use the Signal
0, 3, 6, 7, 11, 12, 14,
16, and 18
1, 2, 4, and 5
14
15
12
13
16
17
0, 2, 5, and 7
4 and 6
−
5 and 7
5 and 7
18
19
Reference
Page
7-51
7-52
7-53
7-55
 3C)