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Parameter (Number)
Block Title
BRAKE CHOPPER
BRAKE CHOPPER RUNTIME
(Continued)
ENABLE (43.07)
BRAKE RESISTOR THERMAL
TC (43.08)
BRAKE RESISTOR P
CONT (43.09)
BRAKE RESISTANCE (43.10)
BRAKE RESISTOR FAULT
LIMIT (43.11)
BRAKE RESISTOR WARNING
LIMIT (43.12)
ENERGY
Settings for the energy saving calculators. See also section Energy saving calculators.
EFFICIENCY
SAVED GW HOURS (45.01)
SAVED MW HOURS (45.02)
12-72 Startup Assistant & Parameters
Table 12-4 Level 1 Parameter Block Definitions
Selection (Value)
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.
Default: 0s
Range: 0 to 10000s
Defines the thermal time constant of the brake resistor for overload
protection.
Default: 0.00 kW
MAX
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.
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.
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
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
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.
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.
Descriptions
cont.
max
cont.
max
3AXD50000011888
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