WEG ADL300 User Manual page 37

05.06 – EMERGENCY FUNCTION
In case of a blackout the drive can be powered by an Emergency Module Supplier (EMS) or by an Uninterruptible Power
Supply (UPS).
The emergency function signal must be connected to the input of the Emergency Mode command (default digital input
DI3).
Operation with Emergency Module Supplier (EMS)
If digital input 3 DI3 is active, the Undervoltage (UV) alarm refers to the value set in parameter 448 (menu 4), allowing
the drive to run powered on the DC link. See the Quick Start Manual (paragraph 7.3.3) and the EMS Manual for the
connection.
Operation with Single-phase Uninterruptible Power Supply (UPS)
When the emergency is activated by digital input DI3, the Drive can be powered by a 230V single-phase UPS. See the
Quick Start Manual (paragraph 7.3.3) for the connection.
Managing arrival at floor in Emergency
For both closed-loop and open-loop configurations, arrival at the floor in an emergency is managed by trying to optimize
the request for current to the emergency modules.
Menu Description
Par
5.6.1 11278
Em dc Brk
The parameter lets you set the braking current value by injecting DC in the motor windings. You can limit this
value and avoid overloading the emergency batteries.
Menu Description
Par
5.6.2 11284
Detection Limit
This is the current value delivered by the drive (expressed as a percentage of nominal current) that the drive uses as a
threshold to select the best riding direction.
If the drive was in regeneration before the emergency, it keeps the same riding direction in emergency; if the drive was
not in regeneration but was delivering current at a value below the set value, it keeps the same riding direction.
Otherwise, the drive changes riding direction and considers the previous one unfavorable.
Note: the direction is set by the controller. With this parameter the drive only evaluates what the best riding direction
would be based on delivered current levels. This evaluation could be used by the controller to set the direction
recommended by the drive.
Menu Par Description
5.6.3 12282
ChosenDirection
Indicates the direction selected by the drive during the emergency.
0 No direction selected
1 Forward
2 Reverse
The association Forward/Reverse and Up/Down depends on how the connection to the motor was made.
ADL300 CiA® 417- Description of functions and parameter list
UM Type FB BIT
FLOAT
UM Type FB BIT
PERC LONG
UM Type FB BIT
INT
Def Min Max
75.0 0 150
Def Min Max
50 0 100
Def Min Max
0 *** ***
Acc Mod
RW FVS
Acc Mod
RW FVS
Acc Mod
R FVS
Page 37 of 46