AKD 5000
a quick discharge of the intermediate circuit voltage
will be carried out after the motor has stopped.
Using a digital input, it is possible to activate mains
failure and/or quick discharge. This is done by
selecting
Mains failure inverse
on one of the control
terminals (16, 17, 29, 32, 33).
Mains failure inverse
is active in the logical
’
0
’
situation.
NB!:
The frequency converter can be completely
damaged if the Quick-discharge function
is repeated, using the digital input while
mains voltage is on.
Mains failure par.
407
Quick discharge par. 408
Mains failure inverse digital
input
Function
No function [0]
Disable [0]
Logical
’
0
’
1
No function [0]
Disable [0]
Logical
’
1
’
2
No function [0]
Enable [1]
Logical
’
0
’
3
No function [0]
Enable [1]
Logical
’
1
’
4
[1]-[4]
Disable [0]
Logical
’
0
’
5
[1]-[4]
Disable [0]
Logical
’
1
’
6
[1]-[4]
Enable [1]
Logical
’
0
’
7
[1]-[4]
Enable [1]
Logical
’
1
’
8
Function no. 1
Mains failure and quick discharge are not active.
Function no. 2
Mains failure and quick discharge are not active.
Function no. 3
The digital input activates the quick discharge function,
regardless of the intermediate circuit voltage level and
regardless of whether the motor is running.
Function no. 4
Quick discharge is activated when the intermediate
circuit voltage has dropped to a given value and
the inverters have stopped. See procedure
on previous page.
Function no. 5
The digital input activates the mains failure function,
regardless of whether the unit receives any supply
voltage. See the different functions in parameter 407.
Function no. 6
The mains failure function is activated when the
intermediate circuit voltage has dropped to a given
value. The selected function in case of mains
failure is selected in parameter 407.
Function no. 7
The digital input activates both the quick discharge and
the mains failure function, regardless of the intermediate
circuit voltage level and regardless of whether the
motor is running. First the mains failure function will be
active; subsequently there will be a quick discharge.
Function no. 8
Quick discharge and mains failure function are activated
when the intermediate circuit level drops to a given level.
First the mains failure function will be active;
subsequently there will be a quick discharge.
MG.50.R3.02 -
56