2. Define any 3 external control terminals in parameters [E0.01] ~ [E0.05] with one
set to 9 "Frequency increment UP command", one set to 10 "Frequency decre‐
ment DOWN command", and another set to 11 "Zeroing of external terminal fre‐
quency setting".
3. Set [S3.32] "UP / DOWN setting ratio" for the frequency change rate of terminals
UP / DOWN.
Fig.8-26: External terminals Up / Down settings
The combination of the control terminals are described as below:
Input for set frequency zero clearing Open Closed
Input UP Open Closed Either
Input DOWN Open Closed Open Closed Either
Current set frequency of the fre‐
quency converter
Hold Decrease Increase Hold Zero
● UP / DOWN / Zeroing terminals only work in RUN state.
● Whether the frequencies modified via UP / DOWN terminals will or not
be saved after power off depends on parameter [b1.01].
S3.34 Fan control
Setting range 0 ~ 1
Minimum unit 1
Factory default 0
● 0: Automatically controlled
Automatically control the start and stop of the cooling fan according to the detected
temperature of the heat sink.
● 1: Always on
The fan will start as long as the frequency converter is "switched on".
Bosch Rexroth AG
Parameter Settings
DOK-RCON03-EFC-3600***-IT01-EN-P
Rexroth Frequency Converter EFC 3600
90/235
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