Heater And Sensor Resistance Values - ITW Dynatec DYNAMELT D15 Series Technical Documentation Manual

Page 7-16 Troubleshooting
Revised 11/14
Optional V6 BUS Communications Module PN 117382
The V6 BUS module is used with a communications protocol ad-
apter to provide functionality so that the ASU may be operated
remotely. Several communication adapters are available, includ-
ing EtherNet IP, EtherCat and Profibus.

Heater and Sensor Resistance Values

The resistance values given in the four tables on the following page will aid in troubleshooting if a
sensor or heater malfunction is suspected. The "Temperature Sensor Resistance" table gives values
for various temperatures. If you know the approximate temperature of the suspected sensor, you can
check to see if the sensor resistance approximates the value given in the table by unplugging the af-
fected head or hose connection and measuring resistance across the affected pins (see wiring dia-
gram in Chapter 11 for pin numbers).
The "Nominal Hose Heater Resistance" table gives the heater resistance for hoses. A suspected hose
heater problem can be quickly isolated by measuring hose heater resistance and comparing it to the
correct resistance for your hose length and voltage as shown.
The "Nominal Head Heater Resistance" table gives values for several different head wattages. A
suspected head heater problem can be isolated by measuring head heater resistance and comparing
it to the resistance for the appropriate wattage of your system.
The "Nominal Hopper Heater Resistance" table gives heater resistance for the hopper heaters of
each model and for the (optional) drop-in grids.
Before unplugging connectors from the PCBs, ground yourself to the
ASU by touching any available unpainted cool metal surface, mounting
screws, etc. This will avoid electrical discharge to the PCB assembly when you are remov-
ing and replacing connectors.
DANGER HIGH VOLTAGE
ITW Dynatec
D SERIES V6 DCL ASU Manuals
Field Bus
communication adapter inserted