ITW Dynatec c. 2004
DYNAMINI ASU Manual #20-25
Page 7-5
Revised 1/05
Controllersetpointsare
not adjustable.
All channels display
errormessageorwrong
actual temperatures.
System is not working,
display is OFF.
Troubleshooting Guide
Preliminary Checks: Verify the following before proceeding
1. The ASU is switched on.
2. The ASU is supplied with power.
3. The ASU is supplied with pneumatic air.
4. Pneumatic and electrical connections are correct.
5. Adhesive is in the hopper.
Error Messages (see also Chapter 4)
EO1 = temperature zone has an open sensor
EO2 = temperature zone has a shorted sensor
Hose/ Applicator Troubleshooting Tip
Hose or applicator problems can be isolated by electrically connecting the
applicator and hose to an alternate socket on the ASU. If the malfunction
goes with the applicator and hose, the problem will usually be in the applicator
or hose that was moved. If the malfunction does not move with the applicator
and hose, the problem is probably in the ASU.
Problem Possible Cause Solution
1.Main Power switch OFF.
2.PCB inoperative.
3.Keypad locked.
1.PCB inoperative.
1.Power supply plug at X1
is not plugged in.
2.Ribbon connector J1 is
disconnected from back
of PCB or display panel.
3.F1 fuse on the PCB is
inoperative.
1.Switch ON.
2.Replace PCB.
3.Unlock.
1.Replace PCB.
1.Check power supply plug
connection.
2 Check connection.
3.Insert new fuse, if it blows, the
PCB is inoperative.
Incoming AC power
X2
J1 ribbon connector to display panel
ON
Display
Panel
F1
X1