84 Start-up and control
Electrical braking and voltage control
Electrical braking (a built-in brake chopper and brake resistor) is needed in elevator
applications to allow the drive to dissipate regenerative energy. The chopper connects the
brake resistor to the intermediate circuit of the drive whenever the DC voltage exceeds the
maximum limit.
If the DC voltage drops due to input power cut off, the undervoltage controller will automatically
decrease the motor torque to keep the voltage above the lower limit.
• Set the brake chopper and resistor settings
BR POWER MAX
CNT and
R BR.
• Check that the connection is functioning.
For more information on the brake resistor
connection, see chapter
page
.
Start/stop control
As a factory default, parameter
is set to
• Start up: DI1 active (= 1)
• Start down: DI2 active (= 1)
Note
: The drive will not start if both DI1 and DI2 are
active (= 1).
START FUNC
UP COMMAND
DOWN COMMAND
Mechanical brake control
Select the brake control function: brake control with
monitoring or without monitoring.
BRAKE CONTROL
If you selected brake control with monitoring, activate
the monitoring for 1-2 brake contactors through
digital inputs.
BRAKE MONITOR 1
BRAKE MONITOR 2
Based on the mechanical brake opening delay,
define the brake open delay.
BRAKE OPEN DELAY
Define the brake modulation delay.
MODULATION DELAY
Define the brake close speed.
BRAKE CLOSE SPEED
Speed reference scaling
Define the gear ratio.
GEAR RATIO
Define the sheave diameter in millimeters.
SHEAVE DIAMETER
Define the roping ratio.
ROPING RATIO
Summary of Contents for ACL30
Page 1: ...ABB high performance elevator drives User s manual ACL30 elevator drive ...
Page 4: ......
Page 20: ...20 Safety instructions ...
Page 34: ...34 Operation principle and hardware description ...
Page 42: ...42 Planning the cabinet installation ...
Page 60: ...60 Planning the electrical installation ...
Page 126: ...126 Using the control panel ...
Page 318: ...318 Maintenance ...
Page 334: ...334 The Safe torque off function ...
Page 338: ...338 Mains chokes ...
Page 342: ...342 EMC filters ...
Page 348: ...Dimension drawings 348 Frame size B D1 D2 W H1 H2 ...
Page 349: ...Dimension drawings 349 ...
Page 350: ...Dimension drawings 350 Frame size C D1 D2 H2 H1 W ...
Page 351: ...Dimension drawings 351 ...
Page 352: ...Dimension drawings 352 Frame size D ...
Page 354: ...354 Dimension drawings EMC filters JFI 0x ...
Page 356: ...356 Dimension drawings Brake resistors JBR xx ...
Page 358: ...358 Dimension drawings ...