Watlow Series 920 Microprocessor-Based Ramping Control - Manual (Page 29)

Output #1 Option D, Terminals 22 - 24
Model #92OA-_ D_ _-_000
Output #1 to
Mechanical
Relay
Load from
6A SPDT Relay
L2
L l
Figure 20 -
Output 1 Mech.
Relay, Option "D",
Wiring Diagram.
CAUTION:
If you use normally
closed contacts of
the mechanical
relay, you may need
to add an external
snubber (Watlow
Part # 0804-0147-
0000) across the
normally closed
contacts to avoid RF
noise and potential
malfunction.
Nor-
mally open contacts
are protected
internally.
Output #1 Option E, Terminals 22 - 24
Model #92OA-_ E_ _-_000
Figure 21-
Output 1, Trlac,
Option “E",
Wiring Diagram.
Back of the control
15ATriac
NOTE:
Terminal #24 should
not have load wires
connected to it. It is
used only for the
gate of the triac
L2 located on the back
of the control.
How to Install and Wire, Chapter 4 WATLOW Series 920 User's Manual 29