2. Protection without temperature sensor
This function is based on the thermal model of the motor. The simplified thermal
model of motor is shown as below:
Fig.8-22: Simplified thermal model of motor with PT1 model
The default value of "Thermal motor time constant" [S2.23] is dependent
on the device type. If "Motor overload protection" OL-2 happens frequent‐
ly, please ensure that the output current of the frequency converter not ex‐
ceeds 110 % of the motor rated current, and increase the value of [S2.23]
appropriately.
8.5 Group S3: Running Parameters
S3.00 Jogging frequency
Setting range 0.00 ~ [b1.05]
Minimum unit 0.01 Hz
Factory default 5.00 Hz
S3.01 Jogging acceleration time
Setting range 0.1 ~ 6000.0s
Minimum unit 0.1s
Factory default 5.0s
S3.02 Jogging deceleration time
Setting range 0.1 ~ 6000.0s
Minimum unit 0.1s
Factory default 5.0s
● Jogging command input has the highest priority and is independent of the
“RUN” / ”STOP” command input. As long as jogging command is activated, the fre‐
quency converter will start immediately to run to the frequency defined by [S3.00]
with acceleration / deceleration time defined in [S3.01] and [S3.02] no matter the fre‐
quency converter is in RUN mode or STOP mode. See more details in the figure be‐
low:
DOK-RCON03-EFC-3600***-IT01-EN-P
Rexroth Frequency Converter EFC 3600
Bosch Rexroth AG
Parameter Settings
85/235
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