REXROTH Fv Series - Page 128

Fig. 7-27: Droop control
S3.11
Setting velocity of UP / DOWN Factory default 0.08
Setting range 0.01...100.00 Hz/s Minimum unit 0.01
Used to set the frequency changing rate when the frequency is set with the
digital inputs UP / DOWN or the <▲> / <▼> keys of the operating panel.
S3.12
Brake chopper threshold Factory default 770
Setting range 600...785 V Minimum unit 1
S3.13
Braking duty cycle Factory default 100
Setting range 0...100 % Minimum unit 1
● Only for models with internal choppers, resistance and power of brake
resistors need to be considered.
● A suitable brake voltage set via ‘Brake chopper threshold’ [S3.12] exe‐
cutes a fast brake to stop.
● Braking duty cycle = (Brake on time / Brake cycle) × 100 %
● Parameters S3.12 and S3.13 are used together. The braking duty cycle
needs to be set appropriately according to loads.
S3.14
Motor standard rotation direction Factory default 0
Setting range 0...2 Minimum unit 1
Used to change the standard rotation direction of the motor, same function
like adjusting any two wires (U, V and W) of the motor.
● 0: Standard motor direction
● 1: Reverse standard motor direction
● 2: Deactivate reverse motor rotation
S3.15
Stop key validity Factory default 1
Setting range 0, 1 Minimum unit 1
● 0: Valid only for operating panel control
Bosch Rexroth AG DOK-RCON02-FV*********-IB08-EN-P126/259
Rexroth Frequency Converter Fv
Parameter Settings