Watlow Series 97 - Manual (Page 20)

3 . 1 0 ■ W i r i n g Wa t l o w S e r i e s 9 7
Output 4 Wiring
Figure 3.10a – AC Outputs
Electromechanical Relay without Contact Suppression
97 _ _ - _ _ _ D - _ _ _ _
Form C, 2 amps, off-state impedance: 31M
Ω
Figure 3.10b – Communications and Retransmit Option
EIA/TIA-232 EIA/TIA-485 Retransmit Option
97 _ _ - _ _ _ R - _ _ _ _ 97 _ _ - _ _ _ U - _ _ _ _ 97_ _ - _ _ _ M - _ _ _ _
10
8 1
2
3
4
5
6
7
13 14 15
11
12
16 17 18
19 20 21
9
19 20 21
V out COM. I out
10
8 1
2
3
4
5
6
7
13 14 15
11
12
16 17 18
19 20 21
9
19 20 21
T-/R- COM. T+/R+
10
8 1
2
3
4
5
6
7
13 14 15
11
12
16 17 18
19 20 21
9
19 20 21
T out COM. R in
10
8 1
2
3
4
5
6
7
13 14 15
11
12
16 17 18
19 20 21
9
External
Load
COM. N.C.
L2 L1
19 20 21
N.O.
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.
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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.
NOTE: For more information about communicating with Watlow controllers, go to www.watlow.com and download the Data
Communications Reference: Electronic User’s Manual. It is located under Literature, User’s Manuals, English and search
on data communications reference.