Appendix A - ACS380 in crane applications 551
Power on acknowledgment
The Power on acknowledgment function makes sure that the main power is
connected and the drive is ready for operation. You can use this function, for
example, to automatically reset faults that are generated during the drive in standby.
The source to Power on acknowledgment signal (
20.212
) can be from the following
sources:
• From the Safe torque off (STO), parameter
06.18
Start inhibit status word
, bit 7
inverted.
or
• Digital input. For example parameter
20.212
Power on acknowledge
,
DIO2
.
If the drive trips on a fault, and you activate the Power on acknowledgment signal (a
rising edge), the drive generates an internal fault reset after a time delay (
20.213
).
If the Power on acknowledgment circuit is open (
20.212
= False), then the drive
shows the warning
D20B
Power on acknowledge
.
Timing diagram
Typically, for the crane power acknowledgment feature, parameters are set as
follows:
Settings
Parameters:
20.212
Power on acknowledge
,
20.213
Power on ackn reset delay
Signals:
09.01
Crane SW1
Warnings:
D20B
Power on acknowledge
Faults: -
No.
Name
Value
20.12
Run enable 1 source
value of parameter
06.18
bit 7.
(if run enabled is used)
20.212
Power on acknowledge
value of parameter
06.18
bit 7.
20.213
Power on ackn reset delay
500 ms
Internal fault reset
Power on acknowledgement
20.213
ACS380 FW.book Page 551 Friday, May 4, 2018 4:18 PM
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