Fig. 7-46: PID feedforward limitation
The output of upper limitation of PID feedforward is a percentage, which
should be multiplied by [b1.05] to get the feedforward frequency.
E3.13
PID analog signal setting channel Factory default 0
Setting range 0...3 Minimum unit 1
Used to select the analog signal setting channel when E3.00 is set as 1 or 3:
● 0: the PID given value is from terminal +I
● 1: the PID given value is from terminal VR1
● 2: the PID given value is from terminal VR2
● 3: the PID given value is from terminal VR3
Group E4: Protection parameters
E4.00
Software over voltage protection threshold Factory default 810
Setting range 790...820 V Minimum unit 1
E4.01
Stall over voltage function Factory default 0
Setting range 0, 1 Minimum unit 1
E4.02
Stall over voltage protection level Factory default 130.0
Setting range
120.0...150.0 %
(of rated frequency converter
peak voltage)
Minimum unit 0.1
● Parameter ‘Stall over voltage function’ E4.01 is used to activate or deac‐
tivate stall over voltage function.
– 0: Deactivated
– 1: Activated
● In stall over voltage protection, frequency converter detects the bus volt‐
age during deceleration and compares it with ‘Stall over voltage protec‐
tion level’ [E4.02].
● If bus voltage exceeds stall over voltage protection level, the frequency
converter output frequency stops decrease.
● Only if bus voltage is lower than the stall over voltage protection level,
will the frequency converter resume deceleration, as shown in figure be‐
low:
Bosch Rexroth AG DOK-RCON02-FV*********-IB08-EN-P154/259
Rexroth Frequency Converter Fv
Parameter Settings