ITW Dynatec
Chapter 6
Troubleshooting
Page 54
Apex Slot Die Applicator, Manual #40-47, Rev. 10.16
6.3 Testing of Heater Cartridge or Temperature Sensor
1. Turn the ASU OFF and make sure all adhesive air pressure and the pump are turned
OFF.
2. Unplug the electrical cable from the adhesive supply hose to expose the pins in the
cable.
Note: Pin connectors and pinout numbers will vary depending on the control scheme of
the applicator. See pages Chapter 8 for a diagram of each.
Testing Resistance of the Heater Cartridge
a. The resistance value (Ohms) of your heater cartridge may be calculated using the
formula:
Volts²
= Ohms
Watts
To determine wattage, see heater cartridges chart in Chapter 7.
b. Measurements:
•
For DynaControl/ PLC:
With an ohmmeter, contact pins 7 and 8 and measure
resistance.
•
For Controller MCV:
With an ohmmeter, contact pins 3 and 5 and measure
resistance.
•
For Upgrade (NI RTD):
With an ohmmeter, contact pins 1 and 2 and measure
resistance.
•
For Upgrade (Thermocouple):
With an ohmmeter, contact pins 2 and 3 and
measure resistance.
•
For Upgrade (PT RTD):
With an ohmmeter, contact pins 2 and 3 and measure
resistance.
c. A tolerance range of ± 5% is allowed. A heater cartridge that tests outside of this
range must be replaced.