Kollmorgen Digital MMC Control, Hardware Manual

Page: 256 / 322

254 Kollmorgen - December 2011
MMC Smart Drive Hardware Manual
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MAINTENANCE AND TROUBLESHOOTING
46
Overtravel Plus
Fault
Overtravel Plus Fault in-
put is off and Drive Ignore
Plus Travel Limit is off.
Overtravel Plus Fault status can
be monitored using READ_SV
variable 68 AND (16#400 0000).
Fault input write a 0 to
WRITE_SV variable 86. Use
DRSETFLT to reset fault indica-
tions. To override the Overtravel
Plus Fault input write a 1 to
WRITE_SV variable 86, Ignore
Plus Travel Limit. To reactivate
checking of the Overtravel Plus
input write a 1 to WRITE_SV
variable 86, Ignore Plus Travel
Limit. To reactivate checking of
the Overtravel Plus Fault input
write a 0 to WRITE_SV variable
86.
47
Overtravel Minus
Fault
This fault is set when the
Overtravel Minus Fault in-
put is off and Drive Ignore
Minus Travel Limit is off.
Overtravel Minus Fault status
can be monitored using
READ_SV variable 68 AND
(16#800 0000). Use DRSETFLT
to reset fault indications. To
override the Overtravel Minus
Fault input write a 1 to
WRITE_SV variable 87, Ignore
Minus Travel Limit. To reactivate
checking of the Overtravel Minus
Fault input write a 0 to
WRITE_SV variable 87.
51
Digital Link
Communication
Error
This fault is set when two
consecutive corrupt Digi-
tal Link messages are de-
tected or no Digital Link
messages are received
within 250 microseconds.
Digital Link Communication Er-
ror status can be monitored us-
ing READ_SV variable 68 AND
(16#1000 0000). This fault re-
quires that the user servo setup
function and DSTRTSRV be ex-
ecuted prior to executing
DRSETFLT to reset the fault in-
dication.
52
Invalid Switch
Setting Fault
This fault is set when the
drive address switch set-
ting is set to 0 or greater
than 64 or its setting is
changed while the Digital
Link is operating in cyclic
communications mode.
Invalid Switch Setting Fault sta-
tus can be monitored using
READ_SV variable 68 AND
(16#2000 0000). Use DRSET-
FLT to reset fault indications.
Note: Digital Link initialization
must be performed before this
fault can be reset.
53
Cannot Determine
Drive Type
• Regulator board was
initialized when installed
on a different Power
Board.
•
Flash Data Invalid or
Not Readable,
• Re-initialize Drive
•
Drive damaged - consult
factory
Table 10-2: Drive Diagnostic LED Codes (Continued)
Code Description Possible Causes Possible Remedies