7-3
1
Before Using the Products
2
Preparation
3
Connection
4
Setup
5
Adjustment
6
When in T
rouble
7
Supplement
Safety input signal
Caution
For list of connector pin numbers, refer to P.2-53,
Signal
Symbol
Pin No.
Contents
Control
mode
Safety
input 1
SF1+
4
Input 1 that triggers STO function. This input turns
off the upper arm drive signal of power transistor.
When using the function, connect this pin in a way
so that the photocoupler of this input circuit turns off
to activate STO function.
Compatible
all control
mode
6)ï
3
Safety
input 2
SF2+
6
Input 2 that triggers STO function. This input turns
off the lower arm drive signal of power transistor.
When using the function, connect this pin in a way
so that the photocoupler of this input circuit turns off
to activate STO function.
6)ï
5
<Response time>
Safety input 1 or 2 enables STO to operate: within 5 ms of response time, the motor
output torque will be turned off.
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Safety output signal from the safety controller and safety sensor may include L pulse for
self-diagnosis.
To prevent the L pulse from mis-triggering STO function, the safety input circuit has
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Therefore, if the off period of safety input signal less than 1 ms, the safety input circuit
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Safety input
signal
Servo driver
Operate
L pulse for self-diagnosis
1 ms or shorter
5 ms or shorter
Response time
5 ms or more
STO state
7
1. Safety function
Supplement
Input & output signals
Note
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Summary of Contents for MINAS A5 Series
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