See parameter E2.10 "Multi-speed frequency 1"
E2.17 ~ E2.29: Reserved
Parameters E2.10 ~ E2.16 together with b1.04 are used to set the frequencies in
multi-speed control and simple PLC.
● Multi-speed control
8 multiple speeds can be set by multi-speed control terminals, together with
forward / reverse control terminals (FWD-CM and REV-CM) and acceleration /
deceleration terminals. For multi-speed control, the acceleration time / decel-
eration time, rotation direction for each stage can be configured by parame-
ters E2.35, E2.37, E2.39, E2.41, E2.43, E2.45, E2.47 and E2.49.
1. Only 5 external terminals digital inputs are available for the fre-
quency converter, so please properly assign these 5 terminals
when acceleration / deceleration time terminal and FWD / REV
terminal are needed.
2. b1.00 / b1.16 frequency setting source should be set to 6 be-
fore multi-speed control is activated.
3. The rotation direction of every stage depends not only on stage
action selection but also on RUN command source, see more
details in tab. 8-4 "Rotation direction and Acc. / Dec. time for
multi-speed / simple PLC" on page 110.
4. If the set frequency of next stage is lower than current stage, it
will decelerate to the next stage with the deceleration time of
current stage; If the set frequency of next stage is higher than
current stage, it will accelerate to the next stage with the ac-
celeration time of next stage.
● Simple PLC control
Simple PLC is an automatic running mode according to the current accelera-
tion / deceleration time, running frequency, running time and rotation direc-
tion. One cycle of simple PLC control is shown in the figure below.
Fig. 8-43: Simple PLC control
8 stages f0 ~ f7 are set with parameters b1.04, E2.10 ~ E2.16, and
T0 ~ T7 are set with parameters E2.36, E2.38, E2.40, E2.42, E2.44,
E2.46, E2.48 and E2.50.
EFC 3600 Bosch Rexroth AG
Parameter Settings
DOK-RCON03-EFC-3600***-IT03-EN-P
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