Motion Control Engineering Nidec Element Series, Руководство пользователя

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Configuration and Troubleshooting
2-52 Manual # 42-02-2P26
Event and Fault Message Descriptions
The following list of Events will most often reference computer flags monitored by the various
processors. When reading the event description, take note of the flags listed. We recommend
that you look to the prints to locate the referenced flags. For example, the OBD (on board dis-
play touch screen) may display MSAF Input Failure. The Event description asks that we use the
diagnostics to verify the status of 2MV, SAFP, and SAFB.
Following the above example, look at page 5 of the wiring prints. In the left margin is a symbol
with the name M2MV. A left pointing symbol is an input. Note that there is a smaller text block
that reads SPB. This smaller block indicates that Safety Processor B monitors this input. The
next step is to take a look at Safety Processor B diagnostics using the OBD tab labeled SPB
DIAG.
• Touch tab SPB DIAG.
• Select SPB INPUTS.
• Scroll to the M2MV.B flag.
We often notate this process using the following sequence: SPB DIAG > SPB Inputs > M2MV.B.
Again using the given example and looking at flag M2MV.B; if the associated flag has an illumi-
nated “LED”, we expect the input to be ON. In this case, we would expect to find 120VAC on the
SCE-HVI board IDC terminal labeled 2MV. Conversely, if the LED was off, we would expect to
find zero volts on the IDC. (IDC stands for an Insulation Displacement Connector as opposed to
a screw terminal.)
Input Mismatch Faults: During safety redundancy checking, Safety Processors and the PLD will
compare the states of safety related inputs. If there is a mismatch, a fault will be issued, i.e.,
“DLT Input Mismatch.” In the following table, these are grouped together as a “’nnn’ Input Mis-
match in the first listing. “nnn” Redundancy Faults are likewise grouped in the second table list-
ing.”
Table 2.15 Touch Screen Event Listings
Event Description
2 Bus is Low (131) 2 Bus (120VAC) monitoring input is low. Cannot be bypassed.
1. Check fuse F2 on SCE-UPD board.
2. Verify 120VAC across terminals X1B and X2B on the SCE-UPD.
A/B/PLD DLAB Mismatch (190) Traction Only. The DLAB signals seen by the SPA, SPB, and PLD do no
match.
1. Possible problem with the physical input to SPA, SPB or PLD.
2. Possible communication problem between SPA and PLD.
3. Possible communication problem between SPA and SPB.
A/B/PLD DLAT Mismatch (188) Traction Only. The DLAT signals seen by the SPA, SPB, and PLD do no
match.
1. Possible problem with the physical input to SPA, SPB or PLD.
2. Possible communication problem between SPA and PLD.
3. Possible communication problem between SPA and SPB.
A/B/PLD DLMS Mismatch (189) Traction Only. The DLMS signals seen by the SPA, SPB, and PLD do no
match.
1. Possible problem with the physical input to SPA, SPB or PLD.
2. Possible communication problem between SPA and PLD.
3. Possible communication problem between SPA and SPB.