Yaskawa SmartTrac Fault Tables - Manual (Page 27)

10/17/00
New Berlin
Technology Center
Smart Trac
Product Development
Design Document
Faults.doc
Rev. # 19 Page 26 of 64
Title: Fault Declarations
The information contained in this document is the CONFIDENTIAL property of MagneTek Inc.
File = N:\PROJECT\515\SmartTrac\DOCS\Faults.DOC Print Date: 10/17/00
26
Displayed Fault
No.
Priority D
is
p
lay?
Newest
List
?
Ol
d
es
t
List
?
Severity
Assig
n
Program
Input
Corrective Action
Control
Node
Monitor
Fault
Manager
In
ternal Fault #
Fault Legend Description
12B0C 76556 11020 PG_TACH
Input A PG_TACH or PG_TACH2 block
has detected a value of 0 on the
TachCounts or RatedSpeed inputs. No Yes Yes Minor FB_se
tup
Ensure the PG_TACH or PG_TACH2
block has non-zero values for the
TachCounts and RatedSpeed inputs.
12B0D
to
12B5B
76557 to
76635
11021
to
11099
Not Used
12B5C 76636 11100 Tach Loss The TMON block has detected a
tachometer (encoder) loss. Yes Yes Yes Minor Major Check wiring from encoder to PG card.
Tach loss occurs when AuxSpeedSense
> (AuxSenseLevel / 100) and
TachometerInput < (TachSenseLevel /
100).
12B5D 76637 11101 Reverse Tach
Flt The TMON block has detected a
reversed tachometer (encoder)
connection. Yes Yes Yes Minor Major Change wiring from encoder to PG card.
Declared when AuxSpeedSense >
(AuxSenseLevel / 100) AND
(ReferenceInput > 0 and
TachometerInput < 0) OR
(ReferenceInput < 0 and
TachometerInput > 0).
12B5E 76638 11102 Fwd
Overspeed The TMON block has detected an
overspeed condition in the forward
direction. Yes Yes Yes Minor Major Motor speed has exceeded the forward
setpoint: TachometerInput >
(FwdOverspeedLimit / 100). Reduce
commanded speed or load if runaway
condition exists.