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5.19 I/O Signal Allocations
5.19.1 Input Signal Allocations
5.19
I/O Signal Allocations
Functions are allocated to the pins on the I/O signal connector (CN1) in advance. You can
change the allocations and the polarity for some of the connector pins. Function allocations
and polarity settings are made with parameters.
This section describes the I/O signal allocations.
There are the following two methods to allocate I/O signals.
Allocation Method
Σ-7S-Compatible
I/O Signal Alloca-
tions
Multi-Axis I/O Sig-
nal Allocations
Specify the allocation method to use in Pn50A = n.
Pn50A
5.19.1 Input Signal Allocations
Important
Σ-7S-Compatible Input Signal Allocations
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
P-OT
N-OT
/P-CL
/N-CL
/DEC
/EXT1
/EXT2
/EXT3
FSTP
5-50
Predetermined combinations of I/O signals,
pin numbers, and polarities are provided
and you can specify the required combina-
tion with a parameter.
You can specify the pin number to allocate
for each I/O signal.
Parameter
n.
1
Σ-7S-compatible I/O signal allocations
(default set-
ting)
n.
2
Multi-axis I/O signal allocations
• If you change the default polarity settings for the P-OT (Forward Drive Prohibit Input) or N-OT
(Reverse Drive Prohibit Input) signal, the overtravel function will not operate if there are signal
line disconnections or other 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.
Input Signal Name
Forward Drive Prohibit Input
Reverse Drive Prohibit Input
Forward External Torque/Force Limit Input Pn50B = n.
Reverse External Torque/Force Limit Input Pn50B = n.X
Origin Return Deceleration Switch Input
External Latch Input 1
External Latch Input 2
External Latch Input 3
Forced Stop Input
Description
Description
Benefits
Compatibility with Σ-7S SERVOPACKs
There are no restrictions in the combina-
tions of I/O signals and pin numbers,
allowing for flexible signal allocations.
X (I/O Signal Allocation Mode).
When Enabled
After restart
Parameter
Pn50A = n.X
Pn50B = n.
X
X
Pn511 = n.
X
Pn511 = n.
X
Pn511 = n.
X
Pn511 = n.X
Pn516 = n.
X
Classification
Setup
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