472 Parameters
94
94 LSU control
Control of the supply unit of the drive, such as DC voltage and
reactive power reference.
Note that the references defined here must also be selected
as the reference source in the supply control program to be
effective.
This group is only visible when supply unit control has been
activated by parameter 95.20 HW options word 1.
See also section Control of a supply unit (LSU) (page 77).
94.01 LSU control Enables/disables the internal INU-LSU state machine.
When the state machine is enabled, the inverter unit (INU)
controls the supply unit (LSU) and prevents the inverter unit
from starting until the supply unit is ready.
When the state machine is disabled, the status of the supply
unit (LSU) is ignored by the inverter unit.
On
Off INU-LSU state machine disabled. 0
On INU-LSU state machine enabled. 1
94.02 LSU panel
communication
Enables/disables control panel and PC tool access to the
supply unit (line-side converter) via the inverter unit (motor-
side converter).
Note: This feature is only supported by the following drives:
• ACS880-11
• ACS880-31
• ACS880-17 based on an integrated drive module
• ACS880-37 based on an integrated drive module.
Disable
Disable Control panel and PC tool access to supply unit via inverter
unit disabled.
0
Enable Control panel and PC tool access to supply unit via inverter
unit enabled.
1
94.10 LSU max charging
time
Defines the maximum time the supply unit (LSU) is allowed
for charging before a fault (7584 LSU charge failed) is
generated.
15 s
0…65535 s Maximum charging time. 1 = 1 s
94.11 LSU stop delay Defines a stop delay for the supply unit. This parameter can
be used to delay the opening of the main breaker/contactor
when a restart is expected.
600.0 s
0.0 … 3600.0 s Supply unit stop delay. 10 = 1 s
94.20 DC voltage
reference
(Only visible when IGBT supply unit control activated by
95.20)
Displays the DC voltage reference sent to the supply unit.
This parameter is read-only.
-
0.0 … 2000.0 V DC voltage reference sent to supply unit. 10 = 1 V
94.21 DC voltage ref
source
(Only visible when IGBT supply unit control activated by
95.20)
Selects the source of the DC voltage reference to be sent to
the supply unit.
User ref
Zero None. 0
User ref 94.22 User DC voltage reference.1
Other Source selection (see Terms and abbreviations on page 148). -
No. Name/Value Description Def/FbEq16