Group 48 Brake Chopper - ABB ACSM1 Firmware Manual

Group 48 BRAKE CHOPPER
Configuration of internal brake chopper.
48
48 BRAKE CHOPPER
Firmware block:
BRAKE CHOPPER
(48)
This block configures the brake
chopper control and supervision.
48.01 BC ENABLE
Enables the brake chopper control.
Note: Before enabling brake chopper control, ensure the brake resistor is installed and the
overvoltage control is switched off (parameter
brake chopper.
(0) DISABLE
(1) ENABLETHERM
(2) ENABLE
48.02 BC RUN-TIME ENA
Selects the source for quick run-time brake chopper control.
0 = Brake chopper IGBT pulses are cut off.
1 = Normal brake chopper IGBT modulation. The overvoltage control is automatically switched off.
This parameter can be used to program the chopper control to function only when the drive is
operating in generating mode.
Bit pointer: Group, index and bit
48.03 BRTHERMTIMECONST
Defines the thermal time constant of the brake resistor for overload protection.
0...10000 s
48.04 BR POWER MAX CNT
Defines the maximum continuous braking power which will raise the resistor temperature to the
maximum allowed value. The value is used in the overload protection.
0...10000 kW
BRAKE CHOPPER
TLF10 2 msec
[ Disable ]
48.01 BC ENABLE
[ TRUE ]
< 48.02 BC RUN-TIME ENA
[ 0 s ]
48.03 BRTHERMTIMECONST
[ 0.0000 kW ]
48.04 BR POWER MAX CNT
[ 0.0000 Ohm ]
48.05 R BR
[ 105 % ]
48.06 BR TEMP FAULTLIM
[ 95 % ]
48.07 BR TEMP ALARMLIM
FW block: BRAKE CHOPPER
47.01 OVERVOLTAGE
Brake chopper control disabled.
Enable brake chopper control with resistor overload protection.
Enable brake chopper control without resistor overload protection.
This setting can be used, for example, if the resistor is equipped with a
thermal circuit breaker that is wired to stop the drive if the resistor
overheats.
FW block: BRAKE CHOPPER
FW block: BRAKE CHOPPER
Brake resistor thermal time constant.
FW block: BRAKE CHOPPER
Maximum continuous braking power.
35
(11)
(see above)
CTRL). The drive has a built-in
(see above)
(see above)
(see above)
Parameters and firmware blocks
147