
Power removal function
46
2 A
C po
5-7
Related functions
The related functions are not safety-related parts of a control system.
z
ETO-CLR input
If the ETO-CLR input is turned ON after both the HWTO1 and HWTO2 inputs are turned ON to release the power
removal function, the motor puts into an excitation state.
Related parameter
Parameter ID
Name
Description
Initial
value
Dec
Hex
409
0199h
ETO reset action
(ETO-CLR)
Sets the judgment level of the signal when the motor is
excited by the ETO-CLR input.
[Setting range]
1: ON-Edge
2: ON-Level
1
z
HWTOIN-MON output
If the HWTO1 input or the HWTO2 input is turned OFF, the HWTOIN-MON output is turned ON.
z
ETO-MON output
If the HWTO1 input or the HWTO2 input is turned OFF when the “HWTO mode selection” parameter is set to “0: Alarm
is not present,” the ETO-MON output is turned ON. If the motor is excited with the ETO-CLR input after both the
HWTO1 and HWTO2 inputs are turned ON, the ETO-MON output is turned OFF.
Related parameter
Parameter ID
Name
Description
Initial
value
Dec
Hex
400
0190h
HWTO mode
selection
Generates an alarm when the HWTO1 input or the HWTO2
input is turned OFF.
[Setting range]
0: Alarm is not present
1: Alarm is present
0
z
EDM-MON output
If both the HWTO1 and HWTO2 inputs are turned OFF, the EDM-MON output is turned ON.
Be sure to use the EDM output of CN1 to detect the failure of the power removal function.
z
Alarm of HWTO input detection
If the “HWTO mode selection” parameter is set to “1: Alarm is present,” an alarm will be generated when either the
HWTO1 input or the HWTO2 input is turned OFF. (HWTO input detection, alarm code 68h)
At this time, the PWR/ALM LED blinks once in red repeatedly.
When the “HWTO mode selection” parameter is set to “1: Alarm is present,” the motor can be excited if the ALM-RST
input is turned from OFF to ON after the power removal function is released. (It is enabled at the ON edge.)
Related parameter
Parameter ID
Name
Description
Initial
value
Dec
Hex
400
0190h
HWTO mode
selection
Generates an alarm when the HWTO1 input or the HWTO2
input is turned OFF.
[Setting range]
0: Alarm is not present
1: Alarm is present
0
Summary of Contents for aSTEP AZ Series
Page 120: ...120 4 PROFINET communication...
Page 172: ...172 6 Troubleshooting...
Page 179: ...179 7 Reference materials...