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BU 0700 EN
Subject to technical alterations
95
Parameter
Setting value / Description / Note
Available with option
P551
Drive profile
always visible
0 … 1
[ 0 ]
According to the option the relevant process data profiles can be activated with this parameter.
This parameter is only effective for pluggable technology modules (SK TU1-…)
Note:
With the use of the internal CANbus (CANnord) via the integrated customer interface (SK
CU1-…), the settings in this parameter have no effect. The DS402 profile cannot be
activated.
System
CANopen*
DeviceNet
InterBus
Technology module
SK TU1-CAO
SK TU1-DEV
SK TU1-IBS
Setting
0 =
USS protocol (Profile "Nord")
1 =
DS402 profile
AC Drives profile Drivecom
profile
P554
Chopper minimum
always visible
65 ... 100 %
[ 65 ]
The switching threshold of the brake chopper can be influenced with this parameter. An optimised
value for numerous applications is set in the factory setting. This parameter can be increased for
applications where pulsating energy is returned (crank drives) to minimise brake resistance power
dissipation.
An increase in this setting leads to a faster overvoltage FI switch off.
P555
P-limit chopper
always visible
5 ... 100 %
[ 100 ]
With this parameter it is possible to program a manual (peak) power limit for the brake resistor. The
switch-on delay (modulation level) for the chopper can only rise to a certain maximum specified limit.
Once this value has been reached, irrespective of the level of the link voltage, the inverter switches the
resistance currentless.
The result would be an overvoltage switch-off of the FI.
P556
Braking resistor
always visible
3 ... 400
Ω
[ 120 ]
Value of the brake resistance for the calculation of the maximum brake power to protect the resistor.
Once the maximum continuous output (P557) has been reached, then an error I2t Limit (E003) is
initiated.
P557
Brake resistor type
always visible
0.00 ... 100.00 kW
[ 0.00 ]
Continuous resistor output (nominal power) for the calculation of the maximum braking power.
0.00
= Monitoring deactivated
P558 (P)
Flux delay
always visible
0 / 1 / 2 ... 500 ms
[ 1 ]
The ISD control can only function correctly if there is a magnetic field in the motor. For this reason, a
DC current is applied before starting the motor. The duration depends on the size of the motor and is
automatically set in the factory setting of the FI.
For time critical applications, the magnetizing time can be set or deactivated.
0 =
Switched off
1 =
automatic calculation
2...500 = corresponding set value
Note:
Values that are too low can reduce the dynamics and torque development during start-up.
P559 (P)
DC run-on time
always visible
0.00 ... 5.0 s
[ 0.50 ]
Following a stop signal and the braking ramp, a direct current is briefly applied to the motor to fully
bring the drive to a stop. Depending on the inertia, the time for which the current is applied can be set
in this parameter.
The current level depends on the previous braking procedure (current vector control) or the static boost
(linear characteristic).
P560
Save on EEPROM
always visible
0 ... 1
[ 1 ]
0 =
Changes to the parameter settings will be lost if the FI is disconnected from the mains supply.
1 =
All parameter changes are automatically written to the EEPROM and remain stored there even if
the FI is disconnected from the mains supply.
Note:
If USS communication is used to implement parameter changes, it must be ensured that
the maximum number of write cycles (100.000 x) is not exceeded.
