Watlow Series 1500 - Manual (Page 40)

Technical Reference
40 WATLOW Series 1500 User's Manual Programming, Chapter 4
Programming
Chapter 4
Technical Reference
This section of the Series 1500 manual is compiled for easy reference and rapid
information retrieval. Notice the page headings as you thumb through the section;
they will assist you in finding what you need.
How to Program the Series 1500
Here's how to enter a program into the Series 1500 through the front panel. If you
haven't already read it, you'll find a good sample program in Chapter 2 which will
also teach you the programming process.
Write Out Your Program
The Watlow Series 1500 controls temperature or relative humidity for a specific
heating and/or cooling process in a controlled series of individually programmed
steps. Those programmed steps are valuable information. Your program, when it's
entered, gives the Series 1500 orders for the work you want it to perform.
Since the number of steps in the program may be as many as 51, we suggest that
you write it out on copies of the three charts located in this section. This will enable
you to program the Series 1500 quickly and without mistakes. Together, the Series
1500 Programming Chart, the Guarded Access Chart and the General Parameter
Chart will provide you with a back-up copy of your entire program.
Select the Proper DIP Switch Settings
Prior to programming and operating the Series 1500, you must set DIP Switches #1,
2, 6, and 7 for the conditions you want. Write your choices on a copy of the General
Chart, found in this section.
DIP Switch #1 selects whether Event 4 output will be used as an event output, or as
an alarm output for each channel.
DIP Switch #2 selects whether the alarm output will be a latching or a non-latching
output.
DIP Switch #3 selects an RTD sensor for Ch-2, or a 0 to 5v signal for Ch-2.
DIP Switch #3 for a T/C unit must be ON.
DIP Switch #4 single/dual PID.
DIP Switch #5 is for factory test and calibration, it must be ON.
DIP Switch #6 sets a "warm" or "cold" start following power removal from the 1500.
With "Warm Start" the microprocessor uses previously programmed information as if
power had not been removed. A Cold Start is when the 1500 starts "clean" or
completely cleared of all programmed information. All parameters will be empty or
set to the default limits.