Watlow Electric Ramping and Profiling Microprocessor-Based Control SERIES 1500 - Manual (Page 8)

Starting Out
Starting Out, Chapter 1 8 WATLOW Series 1500 User's Manual
Figure 4 -
Quick Wire Simu-
lated Sensor
Wiring
3. If you did not set DIP Switch #6 in the "ON" position before, do that now:
Disconnect power from the unit. Open the 1500, set DIP Switch #6 to ON for a
Cold Start. Replace the control chassis in the enclosure. Reapply power to
the unit. (This clears all previously entered information from the 1500; it is a
"clean" or "cold" start).
4. Now remove power again, open the unit, and set Switch #6 to OFF. (This will
make the next start a "warm" one, retaining all subsequently entered informa-
tion in the processor's memory). Close the 1500.
5. Locate the Signal Conditioner terminal strip on the back of the Series 1500, it's
on the far left as you look at the back of the unit. The resistors, or jumper wires
for the T/C version, will simulate input sensors at room temperature for this
procedure. Make the correct connections using Figure 4.
• For an RTD unit, connect a 107
Ω
resistor (provided) across Terminals 5 and
6, and another 107
Ω
resistor across Terminals 8 and 9. Also connect a jumper
wire (provided) across Terminals 6 and 7, and another jumper wire across
Terminals 9 and 10. See Figure 4.
• For a T/C unit, connect a jumper wire (provided) across Terminals 5 and 7,
and another jumper wire across Terminals 8 and 10.
6. Apply power to the unit. With the CLEAR key, clear the "A1" alarm code and
any other "A" code that appears after it. The ACTUAL display will be reading
Channel 1 at simulated room temperature. Or the ACTUAL display will show
Channel 2 at a simulated %RH or temperature reading. Use the CH.SELECT
key to switch from one channel to the other.
If your Series 1500 responds this way, continue learning about the control. If your
unit does not respond like this, call Watlow at 507/454-5300 and ask for an applica-
tions engineer.
RTD T/C