Checking The Operation - YASKAWA E-V Series User Manual

5 Precautions and Basic Settings Required before Starting Operation
5.5

Checking the Operation

When starting the system or replacing a SERVOPACK for maintenance or inspection purposes, make sure that
the relevant External Device Monitor Output Signal turns ON when the redundant Safety Request Input Sig-
nals turn OFF.
Failure of the safety functions can be detected by monitoring the Safety Request Input Signals and the Exter-
nal Device Monitor Output Signals.
The following table shows the logic for the Safety Request Input Signals and the External Device Monitor
Output Signals.
Safety Request Input Signal A1
Safety Request Input Signal A2
External Device Monitor Output Signal A
Note 1. For details on the Safety Request Input Signals, refer to 6.2.2 Safety Request Input Signals.
2. For details on the External Device Monitor Output Signals, refer to 6.2.3 External Device Monitor Output Sig-
3. This logic is the same for the Safety Request Input Signal B.
5-8
Signal Name
nals.
Code Logic
SRI-A1 ON ON OFF
SRI-A2 ON OFF ON
EDM-A OFF OFF OFF
OFF
OFF
ON