8
missprints and technical changes reserved
Instruction & Operating Manual
TA-15/6P...200/6P
Defective line fuse
a) Defective tachometer or interrupted
tachometer feedback, R91 missing
b) Interrupted armature feedback. Check jumpers
I
and
VII
, R82 missing.
c) Maximum speed potentiometer P9 intermittent.
d) Minimum speed potentiometer P6 intermittent.
e) Interrupted potentiometer connection from
terminal 5 to start of speed-potentiometer.
f) Wrong po/- on d.c. tachometer
connection. (Check terminal connection 11-20)
Drive runs at maximum speed, however
speed potentiometer is set for zero speed or
low speed
This concludes the preliminary preparation and adjustment of the
Thyristor-Drive-Control Type TA-15/6P...200/6P
a) Too low adjustment of current limit.
b) Motor is overloaded, mechanical defect on
machine or motor. Check motor brushess
c) Supply v/- 15V for electronic circuit
incorrect or missing. Reference v 10V
incorrect or missing. Check LED 5 and LED 2
d) Triggering of one Thyristor temporarely
interrupted. Defective tachometer or
tachometer leads. Defective minimum speed
potentiometer.
e) Defective speed potentiometer
a) Armature connections shorted or grounded.
Check power Thyristors.
b) Defective motor or armature. Check brushes.
a) Defective power supply
b) Jumper on the terminals 13-18 is missing
c) Check relay and relay supply
d) Defective speed potentiometer
e) Defective armature fuse
f) Check motor and motor brushes
g) Defective fuses Si 1, Si 2 or Si 3
Speed varies without change of the setting
of the speed potentiometer
Symptom
Drive does not run
Possible causes
