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Changing Input Signal Allocations
• If you change the default polarity settings for the /S-ON (Servo ON), P-OT (Forward Drive Pro-
hibit), or N-OT (Reverse Drive Prohibit) signal, the main circuit power supply will not be turned
OFF and the overtravel function will not operate if there are signal line disconnections or other
Important
problems. If you must change the polarity of one of these signals, verify operation and make
sure that no safety problems will exist.
• If you allocate two or more signals to the same input circuit, a logical OR of the inputs will be
used and all of the allocated signals will operate accordingly. This may result in unexpected
operation.
The input signals that you can allocate to the pins on the I/O signal connector (CN1) and the
related parameters are given in the following table.
Input Signal
/S-ON
Servo ON
/P-CON
Proportional Control
P-OT
Forward Drive Prohibit
N-OT
Reverse Drive Prohibit
/ARM-RST
Alarm Reset
/P-CL
Forward External Torque Limit
/N-CL
Reverse External Torque Limit
/SPD-D
Motor Direction
/SPD-A
Internal Set Speed Selection
/SPD-B
Internal Set Speed Selection
/C-SEL
Control Selection
/ZCLAMP
Zero Camping
/INHIBIT
Reference Pulse Inhibit
/G-SEL
Gain Selection
/P-DET
Polarity Detection
SEN
Absolute Data Request
Reference Pulse Input Multiplication
/PSEL
Switch
FSTP
Forced Stop
Relationship between Parameter Settings, Allocated Pins, and Polari-
ties
The following table shows the relationship between the input signal parameter settings, the
pins on the I/O signal connector (CN1), and polarities.
Parameter
Pin No.
Setting
0
40
1
41
2
42
3
43
4
44
5
45
6
46
7
–
8
–
Input Signal Name
+24 V
A reverse signal (a signal with "/" before the signal abbreviation, such as the /
S-ON signal) is active when the contacts are ON (closed).
A signal that does not have "/" before the signal abbreviation (such as the P-
OT signal) is active when the contacts are OFF (open).
The input signal is not allocated to a connector pin and it is always active.
If the signal is processed on a signal edge, then it is always inactive.
The input signal is not allocated to a connector pin and it is always inactive.
Set the parameter to 8 if the signal is not used.
6.1 I/O Signal Allocations
6.1.1 Input Signal Allocations
Parameter
Pn50A = n.
X
Pn50A = n.
X
Pn50A = n.X
Pn50B = n.
X
Pn50B = n.
X
Pn50B = n.
X
Pn50B = n.X
Pn50C = n.
X
Pn50C = n.
X
Pn50C = n.
X
Pn50C = n.X
Pn50D = n.
X
Pn50D = n.
X
Pn50D = n.
X
Pn50D = n.X
Pn515 = n.
X
Pn515 = n.
X
Pn516 = n.
X
Description
6
6-5
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