4 Operation
4-
59
4.9.2 External Device Monitor (EDM1)
The external device monitor (EDM1) functions to monitor failures in the HWBB function. Connect the monitor
to feedback signals to the safety function device.
Note: To meet the performance level d (PLd) in EN ISO13849-1, the EDM signal must be monitored by a PC or
PLC...etc. If the EDM signal is not monitored by a PC or PLC...etc, the system only qualifies for the
performance level c (PLc).
- Failure Detection Signal for EDM1 Signal
The relation of the EDM1, /HWBB1, and /HWBB2 signals is shown below.
Detection of failures in the EDM1 circuit can be checked using the following four status of the EDM1
signal in the table. Failures can be detected if the failure status can be confirmed, e.g., when the power
supply is turned ON.
Signal
Name
Logic
/HWBB1
ON
ON
OFF
OFF
/HWBB2
ON
OFF
ON
OFF
EDM1
OFF
OFF
OFF
ON
WARNING
• The EDM1 signal is not a safety output. Use it only for monitoring a failure.
Содержание LECYU Series
Страница 30: ...1 Outline 1 9 1 4 3 Three phase 200 V LECYU2 V9 Models ...
Страница 65: ...3 Wiring and Connection 3 11 3 Wiring Example with DC Power Supply Input DRIVER ...
Страница 92: ...3 Wiring and Connection 3 38 External Dimensions Units mm 1 FN Type by Schaffner EMC Inc ...
Страница 93: ...3 Wiring and Connection 3 39 2 FN Type ...
Страница 99: ...3 Wiring and Connection 3 45 4 Cable with Connector for CN8 Model LEC JZ CVSAF External Dimensions Units mm ...
Страница 143: ...4 Operation 4 44 ...