Watlow Electric Micro-Based Autotuning Control SERIES 980/985 - Manual (Page 13)

How to Wire the Series 980/985
The Series 980/985 wiring is illustrated by model number option. Check the
unit sticker on the control and compare your model number to those shown
here and also the model number breakdown in the back of this manual.
Series 980/985 internal circuits appear “inside“ the line drawing of the 980/985,
while connections and terminal designations appear “outside” the line drawing.
All outputs are referenced to a de-energized state. The final wiring figure is a
typical system example.
All wiring and fusing should conform to the National Electric Code and to any
locally applicable codes as well .
When you apply power without sensor inputs on the terminal strip, the Series
980/985 will display “- - ” - in the Upper display, and a "O" in the Lower display.
Press the AUTO/MANUAL key twice, and an ER 7 is displayed for one second.
This error indicates an open sensor. Remove power to the control and connect
the sensor properly, see Page 14.
Jumper #4 to #6 and
Jumper #5 to #7 for
115 VAC operation
Jumper # 5 to # 6 for
230 VAC operation
L2
Earth Ground
Figure 8 -
115 VAC Power
Wiring
CAUTION:
To avoid potential
electric shock, use
National Electric
Code (NEC) safety
practices when
wiring and connect-
ing this unit to a
power source and to
electrical sensors or
peripheral devices.
Figure 9 -
230 VAC Power
Wiring
Install and Wire Chapter 2
WATLOW Series 980/985 User’s Manual 13