ABB ACS880+N5350, Руководство пользователя

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12-72 Startup Assistant & Parameters 3AXD50000011888
Table 12-4 Level 1 Parameter Block Definitions
Block Title
Parameter (Number)
Selection (Value)
Descriptions
BRAKE CHOPPER
(Continued)
BRAKE CHOPPER RUNTIME
ENABLE
(43.07)
Default: 1 (On)
Range: 0, 1
0 (Off) 0
1 (On) 1
(Other [bit]) Source selection
Selects the source for quick brake chopper on/off control.
0 = Brake chopper IGBT pulses are cut off
1 = Normal brake chopper IGBT modulation.
This parameter can be used to program the chopper control to
function only when the supply is missing from a drive with a
regenerative supply unit.
BRAKE RESISTOR THERMAL
TC (43.08)
Default: 0s
Range: 0 to 10000s
Defines the thermal time constant of the brake resistor for overload
protection.
BRAKE RESISTOR P
MAX
CONT (43.09)
Default: 0.00 kW
Range: 0.00 to 10000.00 kW
Defines the maximum continuous braking power of the resistor (in
kW) which will raise the resistor temperature to the maximum allowed
value. The value is used in the overload protection.
BRAKE RESISTANCE (43.10) Default: 0.0 ohm
Range: 0.0 to 1000.0 ohm
Defines the resistance value of the brake resistor. The value is used for
brake chopper protection.
BRAKE RESISTOR FAULT
LIMIT (43.11)
Default: 105%
Range: 0 to 150%
Selects the fault limit for the brake resistor temperature protection
function. When the limit is exceeded, the drive trips on fault 7183 BR
excess temperature.The value is given in percent of the temperature
the resistor reaches when loaded with the power defined by parameter
43.09 Brake resistor P
max
cont.
BRAKE RESISTOR WARNING
LIMIT (43.12)
Default: 95%
Range: 0 to 150%
Selects the warning limit for the brake resistor temperature protection
function. When the limit is exceeded, the drive generates a A793
BR excess temperature warning.The value is given in percent of the
temperature the resistor reaches when loaded with the power defined
by parameter 43.09 Brake resistor P
max
cont.
ENERGY
EFFICIENCY
Settings for the energy saving calculators. See also section Energy saving calculators.
SAVED GW HOURS
(45.01) Default:
Read Only
Range: 0 - 65535 GWh
Energy saved in GWh compared to direct-on-line motor connection.
This parameter is incremented when 45.02 Saved MW hours rolls over.
See parameter 45.21 Energy calculations reset.
SAVED MW HOURS (45.02) Default: Read Only
Range: 0 - 999 MWh
Energy saved in MWh compared to direct-on-line motor connection.
This parameter is incremented when 45.03 Saved kW hours rolls over.
When this parameter rolls over, parameter 45.01 Saved GW hours is
incremented.