Rockwell Automation FlexPak Plus DC Drive - Manual (Page 45)

5:15
Yes
Replace TACH feedback
kit, reconnect feedback
selection jumper to the T"
position for TACH feedĆ
back and restart drive.
If using TACH feedback,
change feedback selection
jumper to the A" position for
armature voltage feedback
and restart the drive.
Does motor
still runaway?
Remove TACH leads from
the TACH feedback kit.
Measure voltage of TACH.
CompareTACH voltageto
RPM speed of motor being
driven.
Is proper
TACH
present?
Verify that proper selection
of jumpers on the TACH
feedback kit has been seĆ
lected for type of TACH beĆ
ing used.
Arejumpers
selected
correctly?
Correct the problem.
Fixed?
Done
Start Note: #1: Contact local sales/service office.
No
Replace TACH and reconĆ
nect feedback jumper to
theT" posiiton for TACH
feeback and restart the
drive.
Fixed? Done
Yes
No
Fixed? Done
Yes
Yes
No
See Note #1
No
Yes
Check thevoltageat terĆ
minals F1 and F2 on 2TB
of thefield supply kit (if
applicable)
Yes
Remove motor field leads
from terminals F1 and F2,
makea continuity check
between motor field leads.
Is proper
field voltage
present for
motor being
used?
Yes
No
Is
continuity
present?
Replace
Regulator
Board
Correct the
problem
Fixed? Done
Yes
No
SeeNote#1
Replace field
supply
Fixed? Done
Yes
No
Yes
No
No
Yes
No
Is drive a speed or voltĆ
ageregulator?
Speed Reg.
Replace
Regulator
Board
Fixed?
Done
No
SeeNote#1
DANGER
THE FOLLOWING CHECKS AND PROCEDURES REQUIRE THE POWER TO BE ON. EXERCISE EXTREME
CARE AS HAZARDOUS VOLTAGE EXISTS. FAILURE TO OBSERVE THIS PRECAUTION COULD RESULT
IN SEVERE BODILY INJURY OR LOSS OF LIFE.
Figure 5Ć9. Motor Runs Away.