Flowserve LRR1-40 TDS Control Unit - Manual (Page 31)

31
System Faults
– co ntinued –
Action against high frequency interference
– contin ued –
H. F. Interference suppression of CAN bus line
Clamp hinged-shell ferrite rings just before the equipment enclosures onto the bus line.
Make sure that both halves of the shell rings fit snugly together. If, in addition, a feedback
potentiometer is connected, clamp the ferrite ring also onto the connecting line just before
the control unit. Select the ferrite rings according to the diameter of the line.
Replace controller
1. First unplug the terminal strips . For this purpose turn the right and left fixing
screws in direction of the arrow until the terminal strip can be removed.
2. Undo the fixing slide in order to snap out the controller and take it off the supporting
rail
.
Hinged-shell ferrite rings
Fig. 8
Control unit
Sensor
Sensor
A B
C
F
Danger
Cut off power supply before exchanging the controller!
When the CAN- bus is interrupted during operation a malfunction message
will be given. When ordering spare parts please state the serial number
indicated on the name plate.
If possible read and write down the adjusted parameters of the operating
terminal URB or SPECTOR
control .