Parameters 231
00.0… 1000.0%
Motor power in percent of nominal motor power.
1 = 1
45.09
Energy reset
Resets the energy counters
and
Done
Reset not requested (normal operation).
0
Reset
Reset energy counters. The value reverts automatically to
.
1
47
47 Voltage ctrl
Overvoltage and undervoltage control settings. See also
section
on page
.
47.01
Overvolt ctrl
Enables the overvoltage control of the intermediate DC link.
Fast braking of a high inertia load causes the voltage to rise
to the overvoltage control limit. To prevent the DC voltage
from exceeding the limit, the overvoltage controller
automatically decreases the braking torque.
Note:
If a brake chopper and resistor or a regenerative supply
section are included in the drive, the controller must be
disabled.
Disable
Overvoltage control disabled.
0
Enable
Overvoltage control enabled.
1
47.02
Undervolt ctrl
Enables the undervoltage control of the intermediate DC link.
If the DC voltage drops due to input power cut off, the
undervoltage controller will automatically decrease the motor
torque in order to keep the voltage above the lower limit. By
decreasing the motor torque, the inertia of the load will cause
regeneration back to the drive, keeping the DC link charged
and preventing an undervoltage trip until the motor coasts to
stop. This will act as a power-loss ride-through functionality in
systems with high inertia, such as a centrifuge or a fan.
Disable
Undervoltage control disabled.
0
Enable
Undervoltage control enabled.
1
47.03
SupplyVoltAutoId
Enables the auto-identification of the supply voltage.
Disable
Auto-identification of supply voltage disabled.
0
Enable
Auto-identification of supply voltage enabled.
1
47.04
Supply voltage
Defines the nominal supply voltage. Used if auto-identification
of the supply voltage is not enabled by parameter
0 … 1000 V
Nominal supply voltage.
10 = 1 V
48
48 Brake chopper
Control of the brake chopper.
48.01
Bc enable
Enables the brake chopper control.
Note:
Before enabling the brake chopper control, ensure that
a brake resistor is connected and the overvoltage control is
switched off (parameter
Disable
Brake chopper control disabled.
0
EnableTherm
Brake chopper control enabled with resistor overload
protection.
1
Enable
Brake chopper control enabled 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.
2
No.
Name/Value
Description
FbEq
Summary of Contents for ACS850 series
Page 1: ...ACS850 Firmware Manual ACS850 Standard Control Program ...
Page 4: ......
Page 56: ...56 Control locations and operating modes ...
Page 262: ...262 Parameters ...
Page 310: ...310 Fault tracing ...
Page 348: ...348 Control through a fieldbus adapter ...
Page 358: ...358 Drive to drive link ...