Table of Contents
Advertisement
Rexroth Frequency Converter EFC x610
Series
11.5 Possible Errors during Quick Start and Respective Solutions
Errors
Over current (SC, OC-1 or OC-2)
occurs during acceleration
Over voltage (OE-3)
occurs during deceleration
Over current (SC, OC-1 or OC-2)
occurs immediately after pressing
the <Run> button
The motor runs in the direction
opposite to expected
The motor vibrates and runs in
uncertain directions after each starting
Tab. 11-6: Solutions for simple errors during commissioning
11.6 Restoring Parameters to Factory Defaults
If the frequency converter fails to run the motor due to incorrect parameter set-
tings, a simple solution is to initialize the parameters to factory defaults. Setting
[b0.10] = 1 will start initialization.
Please be sure that the parameter settings match with the motor and the field
applications after factory defaults restore. Adjust the parameter settings after
factory defaults restore if necessary.
Output frequency
Acceleration / deceleration time
Protection mode in case of
motor overload or overheat
Operating panel operation
V/f curve mode
Tab. 11-7: Parameter settings by factory defaults
Solutions
Increase the acceleration time
Increase the deceleration time
Incorrect wiring. Check if U, V, W outputs of the main circuit
are shorted or grounded
Change the sequence of any two phases of U, V and W
One phase of U, V and W is disconnected (output phase loss)
Set by the potentiometer (E0.00)
Linear, Acc. for 5 s / Dec. for 5 s (E0.26, E0.27)
Motor rated current (C1.07), Motor thermal model protec-
tion time constant (C1.74), low speed derating frequency
(C1.75), and zero speed load (C1.76)
<Run>, <Stop> buttons as command sources, potentiometer
as frequency setting source
Linear
R912005854_Edition 09 Bosch Rexroth AG
117/653
Quick Start
Advertisement
Table of Contents
