Wa t l o w S e r i e s 9 7
W i r i n g
■
3 . 9
Output 3 Alarm Wiring
Figure 3.9 –
AC Outputs
Electromechanical Relay without Contact Suppression
97 _ _ - _ _ D_ - _ _ _ _
Form C, 2 amps, off-state impedance: 31M
Ω
10
8
1
2
3
4
5
6
7
13 14 15
11
12
16 17 18
19 20 21
9
External
Load
L2
L1
11
10
N.C.
N.O.
12
COM.
customer-supplied
Quencharc
NOTE:
Successful installation
requires five steps:
• Choose the controller’s
hardware configuration
and model number
(Appendix);
• Choose a sensor
(Chapters 3 and 6, and
Appendix);
• Install the controller
(Chapter 2);
• Wire the controller
(Chapter 3) and
• Configure the controller
(Chapters 4, 5 and 6).
NOTE:
Switching inductive loads
(relay coils, solenoids,
etc.) with the mechanical
relay, switched dc or
solid-state relay output
options requires use of
an R.C. suppressor.
Watlow carries the R.C.
suppressor Quencharc
brand name, which is a
trademark of ITW Pakron.
Watlow Part No. 0804-
0147-0000.
ç
WARNING:
To avoid damage to
property and equipment,
and/or injury of loss of
life, use National Electric
Code (NEC) standard
wiring practices to
install and operate the
Series 97. Failure to do
so could result in such
damage, and/or injury or
death.
