Thiele 00900383, Руководство пользователя

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76
R
eliant
3700 M
anual
No power to feeder when
power switch is turned on
This power module is de-
signed to hold 5mm x 20mm
fuses, as well as 1.25” x .25”
fuses. The machine ships
from Streamfeeder’s facility
with 5mm x 20mm fuses.
Fuses blow on power up
A fuse failure indicates a
problem with the last item
connected before failure oc-
curs.
Problem Solution
1. Make sure there is power present at the AC main where the feeder is plugged in.
2. Check three-wire AC power cord for integrity at all three points.
3. Remove power cord from AC input switch module and disconnect the four space
connector leads located on the back of the module inside the feeder.
4. Check the two fuses located inside the feeder’s input power module. BOTH fuses
must be present and test good.
a. Observe the voltage label showing through the window on the fuse housing
for the proper orientation when the holder is re-inserted.
b. A small screwdriver inserted under the tab will allow you to pry open the fuse
housing. Remove the red fuse holder. If the smaller 5mm x 20mm fuse is
present, verify that the metal tab “finger” is holding the fuse in the forward po -
sition. Make sure it has not allowed the fuse to slide back toward the outside
of the feeder and away from where contact with the metal pressure points
inside the module body is made.
c. Use an ohmmeter to test the fuses. A visual inspection will not always be suf-
ficient to determine fuse integrity. If necessary, replace with fuses of the same
rating only.
5. Reconnect power cable and, with power switch turned “on”, check for presence of
AC at the output spade connectors on the back of the module where the transform-
er primary lead connections are made.
6. If steady AC power is not measured as in the previous step, the module’s internal
contacts are most likely worn, and the module must be replaced.
1. Install known good fuses of same rating only.
2. Disconnect all AC loads from the input:
a. The transformer primary.
b. The DC supply’s AC input leads.
c. Remove the red and yellow wire pairs from the stepper motor drive board.
3. Reconnect AC loads one item at a time while alternately applying power between
new connections. Connect each load as follows one at a time to determine the
faulty part:
a. Connect the transformer primary leads to the AC input module.
b. Connect leads to the two-pin AC input connector of the DC power supply.
c. Connect the red and yellow wire pairs of the transformer secondary to the
stepper motor drive board.