Nitto Seiko FF503H - Screw Feeding Hose; 10 Failure Cause and Corrective Measure; Malfunction

Vibratory Track Screw Feeder FF/FM503H ver2
38
9.4. Screw feeding hose
Check the screw feeding hose every day before starting operation. If screws cannot be fed properly due to wear
or dirt on internal surface, replace the screw feeding hose with a new one.
CAUTION When replacing the screw feeding hose
(1) Make sure that the air supply is shut down.
(2) Fix both ends securely.
If the screw feeding hose comes off with air being supplied, a screw fed by
compressed air may jump off from an end of the hose, leading to injuries (if it hits
your eye, you may lose your sight) or damage to equipment around the machine. To
ensure safety, do not look into the screw feeding hose inadvertently or direct them to
anyone.
(3) Take care not to have your hand or finger cut as a result of touching the edge of
the hose connector or the edge face of the screw feeding hose.
10. Failure cause and corrective measure
This chapter describes the causes of typical troubles and corresponding corrective measures.
10.1. Malfunction
The FF/FM503H checks the LEDs immediately after the power is turned on as shown below. And if in normal
state, the machine starts normal running (“LED4”: flashes (On and off each for 0.1 sec)) and components of
the machine start operation. The LED4 (=4

RUN) keeps flashing except when machine is being set up or
adjusted.
To show whether the machine is at normal operation or abnormal operation, the LED4 (=4

RUN) on the
setup panel flashes as described in the following table.
(For LED4 indication in setup and adjustment mode, refer to “8.2.3 FF/FM503H Setup and adjustment
mode function list”.)
1
2
3
4
2
3
4
1 1
2
3
4
3
4
1
2
（ ） （ ）（
）
All LEDs lit up
1
2
3
4
1
2
3
4
（
）
（ ）
3
4
1
2
（
）
3
1
2
4
（
）
1
2
3
4
（
）
All LEDs
lit up
All LEDs
unlit
All LEDs
unlit
LED
check1
LED
check2
LED
check3
LED
check4
All LEDs unlit LED1 lit up LED1&2 lit up
LED1&2&3 lit up
All LEDs unlit
All LEDs unlit
LED4 flashing