REXROTH IndraDrive Fc FCS01, Operating Instructions Manual

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Rexroth IndraDrive FCS01.1 Parameterization
11-7
DOK-INDRV*--FCS01*****-IB01_EN-P
Parameter Setting value / description / note Device Supervisor
Parameter
record
P103 Braking time
P
0 ... 320.00 s
[ 2.00 ]
Braking time is the time which corresponds to the linear frequency reduction from the
set maximum frequency (P105) to 0Hz. When a current setpoint value <100% is used,
the braking time is calculated according to the following formula:
[ ]
[ ]
Setpoint
103
105
Hz
P
P Hz
×
Fig. 11-6: Braking time
Under certain circumstances, the braking time can be changed, for example by the
selected >Deactivation mode< (P108) or the >Ramp rounding< (P106).
P104 Minimum frequency
P
0.0 ... 400.0 Hz
[ 0.0 ]
Minimum frequency is the frequency supplied by the FC as soon as it is released,
provided no additional setpoint is applied.
In combination with other setpoint values (e.g. analog setpoint value or fixed
frequencies), they are added to the set minimum frequency.
The value falls below this frequency if
•
the motor is accelerated when the drive is at standstill;
•
the FC is blocked. Then, the frequency is reduced to the absolute minimum
frequency (P505) before the FC switches off at the output side.
•
the FC reverses. Cyclic reversal takes place at the absolute minimum frequency
(P505).
The value may permanently be below this frequency if the "Hold frequency" function
(function°digital input°=°9) has been executed during acceleration or braking.
P105 Maximum frequency
P
0.1 ... 400.0 Hz
[ 50.0 ]
This is the maximum frequency available at the FC output.
This frequency can be exceeded by means of the slip compensation (P212) or the
"Hold frequency" function (function digital input = 9).
P106 Ramp rounding
S P
0 ... 100 %
[ 0 ]
This parameter is used for rounding the run-up and the braking ramp. Thus, smooth
but still dynamic speed changes can be realized.
Rounding is executed with each setpoint change.
The value to be set is based on the preset run-up and braking time, with values <10%
having no effect.
When ramp rounding is active, the run-up or braking time is calculated as follows:
[ ]
100%
% P106
t t t
P102 P102 UP - RUN ges
⋅ + =
[ ]
100%
% P106
t t t
P103 P103 TIME BRAKING ges
⋅ + =