7-6
Trips and Fault Finding
650V AC Drive
S
ST24 : AUTO RESTART T
ID
User
Trip Name
(MMI 6901)
Trip Name
(MMI 6511 & 6521)
Mask +
Disable
43 MOTOR TURNING
ERR
ATNA 0x8000 N/A
44 MOTOR STALL ERR
ATNB
0x8000
N/A
Keypads (MMIs):
Trips shown as MMI displays in the tables above, i.e. , can be disabled using the
keypads in the TRIPS menu. Other trips, as indicated, can be disabled over the Comms.
Hexadecimal Representation of Trips
When more than one trip is to be represented at the same time then
the trip codes are simply added together to form the value
displayed. Within each digit, values between 10 and 15 are
displayed as letters A to F
For example referring to the tables above, if the AUTO RESTART
TRIGGERS parameter is set to
04A0,
then this represents:
a
“
4
” in digit 3
an “8” and a “2” in digit 2
(8+2 = 10, displayed as
A
)
an
“
0
” in digit 1
This in turn represents the trips BRAKE SWITCH, ANIN FAULT, MOTOR STALLED and
INVERSE TIME.
In the same way, the AUTO RESTART T parameter set to
04A0
would represent
OVERSPEED, ANIN FAULT, DESAT OVER I
and 10V FAULT
.
Fault Finding
Problem
Possible Cause
Remedy
Drive will not power-up
Fuse blown
Check supply details, fit correct fuse.
Check Product Code against Model No.
Faulty cabling
Check all connections are correct/secure.
Check cable continuity
Drive fuse keeps blowing
Faulty cabling or connections
wrong
Check for problem and rectify before
replacing with correct fuse
Faulty drive
Contact Parker SSD Drives
Cannot obtain power-on state
Incorrect or no supply available
Check supply details
Motor will not run at switch-on
Motor jammed
Stop the drive and clear the jam
Motor runs and stops
Motor becomes jammed
Stop the drive and clear the jam
Open circuit speed reference
potentiometer
Check terminal
Decimal
number
Display
10 A
11 B
12 C
13 D
14 E
15 F
6521
6901
6511
6911
Lefflersgatan 1, SE-754 50 Uppsala, SWEDEN
+46 (0)18-65 70 00
+46 (0)18-10 74 78 [email protected] www.regal.se
