Orientalmotor aSTEP AZ Series, Руководство пользователя, Страница: 44 / 180

Power removal function
44
2 A
C po
w
er input t
ype
„
Detection for failure of the power removal function
Monitoring the input status of the HWTO1 input and the HWTO2 input and the output status of the EDM output
relative to the inputs can detect the failure of the power removal function.
When the power removal function is properly operated, the combination of each signal is any of the following.
Combinations other than the table indicate the power removal function of the driver is in a failure state.
HWTO1 input HWTO2 input EDM output
ON ON
OFF
OFF OFF
ON
ON
OFF OFF
OFF
ON
OFF
If only one of the HWTO1 input and the HWTO2 input is ON or OFF, the external device or wiring has failed. Check the
cause and take a measure immediately. At this time, the EDM output is in an OFF state and the motor puts into a
non-excitation state.
• Do not release the power removal function when the EDM output is in an OFF state.
• If the driver or external device is failed or an error in wirings occurs, check the cause and take a
measure immediately.
• The power removal function of the driver is classified in Category 3 of ISO 13849-1. Not all
dangerous failures can be detected with the EDM output.
5-5 Example of use
This section describes the connection method that the power removal function operates when the door (guard) is
opened using a safety module.
HWTO1+
Safety output 1
Safety output 2
Safety input 1
Safety switch
Door (guard)
Open
Safety input 2
Power supply input
Feedback input
24 VDC
0 V
HWTO1–
HWTO2+
HWTO2–
CN1
Driver Safety module
EDM+
EDM–