Watlow Series 922 - Manual (Page 9)

Starting Out, Chapter 1 9 WATLOW Series 922 User's Manual
How to Set the DIP Switches
The Watlow Series 922 has a set of Dual In-line Package (DIP) switches inside
the control on circuit board A007-1727. The locations of the board and switches
appear in Figure 3. The switches are clearly numbered from left to right. You
will use DIP Switches #1-4 and #6; #5 is not used. Table 1 on the next page
shows the DIP switch selections.
How to Open the 922
Before going further, open the Series 922 and pull the control chassis from its
case. Here's how:
The control chassis fastens to the case with a single screw located on the lower
front panel. See Figure 2. Turn the screw counterclockwise to loosen it. Three
or four strip connector plugs, in the rear of the control chassis, feed power and
signals through the back of the casing to the triple terminal strip. These plugs will
let go as you pull.
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When removing the Series 922 Control from its case, pull firmly but gently. When
returning the control to the case, be sure you have the top up to match the plugs
with the case. The 922 will not fit in to the case upside down. Always check to
see that it is oriented correctly. Press the unit in firmly, then turn the front panel
screw clockwise to secure it.
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CAUTION:
The front panel
screw turns 90
°
only. Do not apply
excessive force or
turn the screw more
than 90
°
.
Opening
Figure 2 -
How to Open the
Series 922.
Place picture here.
Place picture here.