Watlow Series 1500 User Manual download pdf (Page 41)

Technical Reference

WATLOW Series 1500 User's Manual 41

Programming, Chapter 4

Programming CHG DATA



CAUTION:

Be sure DIP SW-6

is in the OFF

(Warm Start)

position before

you begin pro-

gramming; all your

entries will be

saved when power

Normally, the 1500 should be in the Warm Start condition. In Cold Start, all program

information will be lost when power is applied to the unit.

DIP Switch #7 sets the temperature scale at °C or °F.

DIP Switch #8 is not used, set it to the OFF position.

Recycle Option

You may request that your program repeat indefinitely by selecting RC=1 in the

GA = 6 area of the CHG PARA mode.

With the Recycle option active, you may expect to see continuous activity as the

program sequence repeats. However, if your Step #1 is programmed as a "Wait

Step," the processor will be waiting for a time or actual condition and no action will

be taking place.

Programming in General

The programming method is simple. Press the MODE key to get to the mode you

want to program. Then use the FCTN key to move from one prompt to the next for

each of the displays.



When you want to enter data at any given FUNCTION display prompt, press the UP

or DOWN key to select the data for the DATA display. Then, press the ENTER key

to enter the data. The display will momentarily blank, then the entered data will re-

appear for a short duration and then self-prompt to the next parameter. Whenever

you press the MODE key, you'll get an immediate exit from any mode the 1500 is in.

The flow diagrams, Figures 15 and 16, will aid you in understanding the programming

process for CHG DATA and CHG PARA, respectively.

Programming the Change Data Mode (CHG DATA)

Press the MODE key to select the CHANGE DATA mode. The processor will auto-

matically branch to one of three submodes or Step Types: SP-Set Point,

JL-Jump Loop, WT-Wait. See Figure 15.

When SP is in the FUNCTION window and the DATA window is blank, the 1500 is

displaying a "blank step." A blank step is simply an unprogrammed step.

1. For SP (Set Point) submode, press ENTER. The display responds with S1 and

the DATA window is blank. This means the set point for Channel 1 on this

particular step is not programmed. If you want to ENTER a set point for

Channel 1, select a value and press ENTER. Or, if you do not want to program

S1, just press FCTN, and display shows S2. The DATA window is again blank.

2. For the JL (Jump Loop) submode, press FCTN until JL appears in the FUNC

TION window. Then press ENTER. JS-Jump Step, and JC-Jump Count are the

parameters to be entered next.

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 89 90

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Watlow Series 1500 User Manual Page 41

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