Injection Molding Machine Chapter 5
V3.0
5-1
Chapter 5: Trouble Shooting
1. Mechanical Part
Item Possible Causes Solution
1.1 Motor can not be started
A Power not being turned on
B Front or rear emergency switch is
pressed.
C Over-load relay tripped.
D Poor signal transmission
E Fuse blown out
F I/O W (6A) fuse blown out
A Turn power on
B Rotate emergency stop button to release
lock
C Reset overload relay
D Turn on system self diagnosis function to
check whether or not various modules (PC
boards) are normal (O)
E Replace fuse
F Replace fuse
1.2
No clamp close
A Safety gate isn’t closed properly
B Robot enable clamp close signal isn’t
on
C I/O W (6A) fuse blown out
D In manual mode, core in not
completed
E Corepull operation not completed
F Ejector retract not completed
G Directional valve stuck
H Directional valve signal wire failure
I Decompression circuit failure
J Clamp close pressure too low
K Clamp close back pressure time too
short
A Check I/O 101, 103, 109, 110 must be
on
B Check robot circuit, I/O 222 must be on
C Replace fuse
D Manually operate corepull in until
operation is completed.
E Check corepull setting conditions
F Check ejector set position
G Clean direction valveV6, V7, manually
operate spool
H Repair signal line 156/0, 157/0 andV35
I check V10 or rotate F8 clockwise to
tighten it up
J Set clamp close pressure 60~80Bar
K Set clamp close back pressure time
0.2~0.5