60 Unidrive M SI-PROFIBUS User Guide
Issue Number: 3
11 Diagnostics
11.1 Overview
This section provides basic diagnostic information intended to resolve the most
common problems encountered when setting up an SI-PROFIBUS module on a
PROFIBUS-DP network.
A high percentage of problems reported are basic set-up problem that can be avoided
by using the information in this chapter. Start by using the Diagnostic flow chart in Figure
11-1 Diagnostic flow chart on page 64, to determine the possible cause of a problem. If
after following the flow chart you are still experiencing problems, please contact your
supplier or local Control Techniques Drive Centre for support.
Support is strictly limited to the setting up and networking of the drive.
11.2 Drive trip display codes
If the SI-PROFIBUS module detects an error during operation, it will force a trip on the
drive. However, the trip string displayed on the drive will only indicate which slot initiated
the trip. The exact reason for the trip will be indicated in the drive trip code parameters
(Pr 10.020 and Pr 10.070).
Table 11.1 shows the possible trips that will be displayed on the drive when a problem is
detected with the SI-PROFIBUS or when the SI-PROFIBUS initiates a trip.
Table 11.1 Possible drive trip conditions
Trip Description
SlotX HF
The drive has detected that an option module is present but is unable to
communicate with it due to a hardware fault.
SlotX Error User trip generated by the SI-PROFIBUS.
SlotX Not
installed
This trip will occur if a drive slot was previously configured with an option module
but on power up, no option module was detected.
SlotX Different
This trip will occur if a drive slot was previously configured with an option module
but on power up, a different option module was detected. Replacing a SI-
PROFIBUS module with another one will not initiate this trip.
The trip will also occur if a SI-PROFIBUS module is installed to a previously
unused slot.
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