Meler Micron 5 - The Tank Does Not Stop Heating (5, 10 and 20 Adhesive Melters); The Tank Does Not Stop Heating (35 Adhesive Melter); Temperature Fluctuations in the Tank

FOCKE MELER GLUING SOLUTIONS
6-4
TROUBLESHOOTING
Causes Checking Comments Actions
Power board
malfunction.
Check power board (pins 2
and 4 in CN6).
LED indicator (DL2) remains off. Change power board.
Control board
malfunction.
Check control board. LED indicator (DL2) remains on. Change control board.
The tank does not stop heating (5, 10 and 20 adhesive melters)
Causes Checking Comments Actions
Temperature sensor
malfunction.
Check the sensor
resistance (Pt-100 or Ni-
120) with polimeter.
Check the CN1 connector (sensor
board) and the two upper wires
status.
Change connector.
Change sensor.
Sensor wrong
positioned.
Check the sensor position
inside its housing.
Sensor must be introduced to the
bottom.
Introduce sensor to the
bottom.
Sensor board
malfunction.
Last failure option.
Check first sensors, connections and
wirings.
Change sensor board.
Temperature fluctuations in the tank
Causes Checking Comments Actions
Faulty power contacts
in the contactor.
Check for continuity in
the power contacts of the
contactor (*)
(1 )
If there is continuity between the
contacts of the contactor and it receives
230 V (A1-A2), it is operating OK.
Replace the contactor.
Faulty thermal
magnetic circuit
breaker.
Check for continuity in the
thermal magnetic circuit
breaker (*).
(2 )
If there is no continuity in the
actuated thermal magnetic circuit
breaker, the device is faulty.
Replace the thermal
magnetic circuit breaker.
2 solid state relays are
faulty.
Check the voltage between
output 2 of each relay and
the neutral ((*) and (*)).
(3 )
If there is 230 V, the relay is OK; if
not, it is faulty. If the tank is heating,
it must receive 230 V.
Replace the relays.
Blown or short-
circuited resistors.
Check the voltage on the
tips of both resistors.
It is operating OK if there is 230 V
between the tips.
Replace the tank.
The tank does not stop heating (35 adhesive melter)
Causas Acción verificación Observaciones Acción correctiva
Power board
malfunction.
Comprobar tensión entre
puntos 4-3 de los relés de
estado sólido ((*),(*)).
( 1 )
Si hay 230 V cuando no debe
calentar, la tarjeta está no OK.
Change power board.
Faulty relays
Check continuity between
1-2 of each relay.
If there is continuity between 1-2 and
no 230 V between 3-4, relay no OK.
Replace the relay or
relays.
Control board
malfunction.
Check control board. LED indicator (DL2) remains on. Change control board.
Note Micron, 1 geared motor Micron, 2 geared motors
(1) 7K3 9K3
(2) 7F6 9F6
(3) 7K5 y 7K7 9K5 y 9K7
Note Micron 35, 1 geared motor Micron 35, 2 geared motors
(1) 7K5 y 7K7 9K5 y 9K7