Entron EN1000 series Instruction Manual

Page 56
TROUBLE
POSSIBLE CAUSE
REMEDY
____________________________________________________________________________________
Control does not
initiate, but welder
head or arms close.
---------------------------
Control initiates, but
stays in Squeeze.
---------------------------
Control initiates and
sequences properly,
but solenoid valve
chatters.
III.
Mis-wired for single stage
operation.
II.
Second stage pilot switch open.
III.
Defective Control/Display or
Terminal Strip/Firing PCB.
--------------------------------------------
I.
Pressure Switch.
II.
Defective Control/Display or
Terminal Strip/Firing PCB.
--------------------------------------------
I.
Solenoid valve coil.
II.
Defective Control/Display
PCB.
III.
Defective Terminal Strip/Firing
Board.
IV.
L2 wire to customer terminal
strip missing.
I.
Check pilot switch between
FS3 and GND
I.
Check for proper operation of
pilot switch. Be sure first stage
closes before second stage.
I.
Replace board with another
board stamped with the same
Assembly Number.
------------------------------------------
I.
Check for defective or malfunc-
tioning pressure switch con-
nected to PS1 & GND.
II.
If no pressure switch is used,
jumper PS1 & GND.
I.
Replace board with another
board stamped with the same
Assembly Number.
-------------------------------------------
I.
Check that valve supply voltage
is not varying below tolerance,
-15%.
II.
Check if valve coil is proper
voltage.
II
Insufficient air pressure.
IV.
Loose connections in valve
wiring.
I.
Replace board with another
board stamped with the same
Assembly Number.
I.
Replace board. See wiring
diagram for correct Assembly
Number.
1.
Add L2 wire (min. 18 AWG).

Entron EN1000 series Specifications

General

Brand	Entron
Model	EN1000 series
Category	Controller
Language	English