Trouble Shooting Chart - Unitrol RST300-115-RIVET Manual

TROUBLE SHOOTING CHART

NOTE: This SOFT TOUCH system will not operate if any fault is detected.
SYSTEM READY will glow solidly if faults are clear.
INDICATION
Start LED not on solid
Start LED flashing
slowly
Or
Continuity Detected
with No Start Signal
LED on
Start LED flashing
quickly
Detect Time
Exceeded. Dress
Electrodes LED
flashing
Output Closed Fault
LED is on
18
| SOFT TOUCH FOR PNEUMATIC RIVETERS
CAUSE
No power to control.
If any fault shown below
is detected. The Start LED
will only glow solidly when
the system is ready for
operation.
Voltage on blue sensor
wires too low or not
connected.
Insulator missing or some
conducting component
is connected between
insulated tool bar and the
riveter frame.
Voltage on blue sensor
wires is too high.
Not enough time allowed to
close riveting mandrel
Riveting mandrel not
making good contact.
Riveting mandrel doesn't
touch when riveter air
cylinder is fully extended.
Output relay K4 is
mechanically closed
(welded contacts).
WHAT TO CHECK OR DO
Be sure that 115VAC (for model
RST300-115-RIVET or 230VAC
(for model RST300-230-RIVET)
is at terminals #1 and #2.
Switches on sensor board are not
set to MFDC position. Push all three
switches to MFDC position.
Unplug the terminal 4,5,6,7 on the
SOFT SENSOR board. Measure
resistance between riveting mandrel
and riveter frame If it is not 0, check
for bad insulator or some other patch
between the insulated tool bar and
the riveter frame. Repair or replace
as needed.
Contact Unitrol service
for instructions.
Increase DIPswitch time. Remember
that this maximum time is the
addition of all switches pushed down
towards the time numbers (.25sec,
.5 sec, .75sec, 1 sec)
Clean riveting mandrel and lower tool
or check part being joined.
Adjust riveter so that there is at least
a 1/4" left in the air cylinder travel
when the riveting mandrel touch.
Replace K4 relay.