20 Limits - ABB ACS310 User Manual

182 Actual signals and parameters
All parameters
No. Name/Value
1819 DI3 OFF
DELAY
1820 DI4 ON DELAY See parameter
1821 DI4 OFF
DELAY
1822 DI5 ON DELAY See parameter
1823 DI5 OFF
DELAY

20 LIMITS

2003 MAX
CURRENT
0.0...1.8 · I
2N
2005 OVERVOLT
CTRL
DISABLE
ENABLE
2006 UNDERVOLT
CTRL
DISABLE
ENABLE(TIME) Undervoltage control activated. The undervoltage control is
ENABLE
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Description
See parameter
1815
1814
See parameter
1815
1814
See parameter
1815
Drive operation limits.
Defines the allowed maximum motor current.
A Current
Activates or deactivates the overvoltage control of the
intermediate DC link.
Fast braking of a high inertia load causes the voltage to rise
to the overvoltage control limit. To prevent the DC voltage
from exceeding the limit, the overvoltage controller
automatically decreases the braking torque.
Overvoltage control deactivated
Overvoltage control activated
Activates or deactivates the undervoltage control of the
intermediate DC link.
If the DC voltage drops due to input power cut off, the
undervoltage controller will automatically decrease the
motor speed in order to keep the voltage above the lower
limit. By decreasing the motor speed, the inertia of the load
will cause regeneration back into the drive, keeping the DC
link charged and preventing an undervoltage trip until the
motor coasts to stop. This will act as a power-loss ride-
through functionality in systems with a high inertia, such as
a centrifuge or a fan. See section
on page 125.
Undervoltage control deactivated
active for 500 ms.
Undervoltage control activated. No operation time limit.
DI1 OFF DELAY.
DI1 ON DELAY.
DI1 OFF DELAY.
DI1 ON DELAY.
DI1 OFF DELAY.
Power loss ride-through
Def/FbEq
0.0 s
0.0 s
0.0 s
0.0 s
0.0 s
1.8 · I
2N
1 = 0.1 A
ENABLE
0
1
ENABLE
(TIME)
0
1
2