ABB ACS880 Firmware Manual page 103

No. Name/Value
130.103 Minimum current
available
-30000...30000 A
130.104 Maximum current
available
-30000...30000 A
130.109 Max charge current
0...30000 A
130.110 Max discharge
current
-30000...0 A
130.111 Minimum DC bus
voltage
0.00...1500.00 V
Description
Shows the minimum current (energy storage discharging
current) that is theoretically available after all limitation
blocks. The value changes according to the actual DC bus
and energy storage voltage levels and temperature. Current
is positive when the DC/DC converter charges the energy
storage. Current is negative when the DC/DC converter
discharges the energy storage.
Minimum current available.
Shows the maximum current (energy storage charging
current) that is theoretically available after all limitation
blocks. The value changes according to the actual DC bus
and energy storage voltage levels and temperature. Current
is positive when the DC/DC converter charges the energy
storage. Current is negative when the DC/DC converter
discharges the energy storage.
Maximum current available.
Defines the maximum sum current of all three phases of the
DC/DC converter. This value is always positive or zero.
Positive value means that DC/DC converter charges the
energy storage. Zero means that it does not charge the
energy storage (but it may still be discharging).
Maximum sum current.
Defines the minimum sum current of all three phases. This
value is negative or zero. Negative value means that the
energy storage is discharged.
WARNING! If more power is taken from the
common DC bus than the DC/DC converter and
other regenerative devices in the bus are allowed
or able to convey to it, the DC bus voltage can
drop to the energy storage voltage level. Then current starts
flowing uncontrolled from the energy storage to the common
DC bus via the freewheeling diodes inside the DC/DC
converter. In this situation the limit defined here may be
crossed. However, crossing the limit does not stop the
DC/DC converter operation, ie, cause a fault trip. Use
parameter 131.25 User current fault limit
trip limit to protect the energy storage and/or the chokes.
Minimum sum current.
Defines the minimum DC bus voltage. When the DC bus
voltage drops under this limit, the DC/DC converter
discharges the energy storage to keep the DC bus voltage
above the limit unless some current limit or energy storage
low voltage limit prevents this.
Note: This value must be smaller than or equal to the value
of parameter 130.112 Maximum DC bus
the converter generates a warning
set.
Minimum DC bus voltage.
Parameters 103
to set the current
voltage, otherwise
AE84 Parameters not
Def/FbEq16
0 A
1 = 1 A
-
1 = 1 A
30000 A
1 = 1 A
-30000 A
1 = 1 A
0 V
1 V = 10