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7-4
External device monitor (EDM) output signal
The monitor output signal is used by the external device to monitor the state of the safety
input signal. Connect the monitor output to the external device monitor terminal of the
safety devices such as safety controller and safety sensor.
Signal
Symbol Pin No.
Contents
Control
mode
EDM
output
EDM+
8
Outputs monitor signal that is used to check the
safety function.
Caution
This output signal is not a safety output.
Compatible
all control
mode
EDM−
7
Logical relationship between safety input signal and EDM output signal
Note
When both safety input 1 and 2 are off, i.e. when STO function of 2 safety input channels
are active, the photocoupler in EDM output circuit turns on.
Signal
Symbol
Photocoupler logic
Safety input
SF1
ON
ON
OFF
OFF
SF2
ON
OFF
ON
OFF
EDM output
EDM
OFF
OFF
OFF
ON
By monitoring the logics (all 4 states) of photocoupler shown in the table above, the
external device can determine the status (normal or abnormal) of safety input circuit and
EDM output circuit.
Maximum delay time from input of safety 1 and 2 signals to output of EDM signal is 6 ms.
1. Safety function
Input & output signals
Содержание MINAS A5-series
Страница 36: ...1 24 MEMO ...
Страница 118: ...2 82 MEMO ...
Страница 168: ...3 50 MEMO ...
Страница 272: ...5 42 MEMO ...
Страница 351: ...7 55 1 Before Using the Products 2 Preparation 3 Connection 4 Setup 5 Adjustment 6 When in Trouble 7 Supplement MEMO ...
Страница 367: ...7 71 1 Before Using the Products 2 Preparation 3 Connection 4 Setup 5 Adjustment 6 When in Trouble 7 Supplement MEMO ...