Watlow Series TM - Manual (Page 10)

Wa t l o w S e r i e s C • 8 • C h a p t e r 3 W i r i n g
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Warning:
Use National Electric (NEC)
or other country-specific
standard wiring and safety
practices when wiring and
connecting this controller to
a power source and to elec-
trical sensors or peripheral
devices. Failure to do so may
result in damage to equip-
ment and property, and/or
injury or loss of life.
Note: Insulated terminals re-
quired for quick connect style
terminals.
For quick connect terminals
1, 2, 6, 7, 8, 9, and 10, AMP
P/N 3-520406-2 or equivalent
recommended. Use Amp
crimp tool P/N 58078-3, in-
sert 90391-3.
For quick connect terminals
3, 4, and 5, AMP P/N 2-
520405-2 or equivalent rec-
ommended. Amp crimp tool
P/N 58078-3, insert 58079-3.
Quencharc Note:
Switching pilot duty loads
(relay coils, solenoids, etc.)
with the mechanical relay
output options requires use
of an R.C. suppressor.
Watlow carries the R.C. sup-
pressor Quencharc brand
name, which is a trademark
of ITW Paktron. Watlow Part
No. 0804-0147-0000.
Figure 8a — Switched DC Output
• Maximum voltage output into an infinite load, 24V Î (dc)
• Minimum output voltage at 10 mA, 5V Î (dc)
• Minimum load impedance, 500
Ω
• Offstate leakage, 100μA Î (dc)
• Not recommended for switching mechanical relays
• Output supplies power
SWDC -
SWDC+ Switched DC+
Switched DC -
+
-
External
Load
Internal Circuitry
SWDC -
SWDC+
17V (dc) unreg
Switched DC
300 Ω
300 Ω
1
2
3
4
5
6
10
9
8
7
Figure 8b — Mechanical Relay Output
• Form C contacts
• 8 A, resistive
• 250 VA pilot duty, 120/240V Å (ac), inductive
• 240V Å (ac) maximum
• 30V Î (dc) maximum
• See Quencharc note
• For use with ac or dc
• Minimum load current 100 mA
• Output does not supply power
Internal Circuitry
COM.
N.O.
Mechanical Relay
N.C.
C
N.C.
N.O. Normally Open
Common
Normally Closed
L1
L2
External
Load
Customer supplied Quencharc
for pilot duty, inductive loads
only. See note.
1
2
3
4
5
6
10
9
8
7