Watlow Series PD - Manual (Page 16)

W a t l o w S e r i e s P D
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14
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C h a p t e r 2 I n s t a l l a n d W i r e
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Warning:
Use National Electric (NEC) or
other country-specific standard
wiring and safety practices when
wiring and connecting this con-
troller to a power source and to
electrical sensors or peripheral
devices. Failure to do so may re-
sult in damage to equipment and
property, and/or injury or loss of
life.
Quencharc Note:
Switching pilot duty loads (relay
coils, solenoids, etc.) with the
mechanical relay or solid-state
relay output options requires use
of an R.C. suppressor.
Watlow carries the R.C. suppres-
sor Quencharc brand name,
which is a trademark of ITW
Paktron. Watlow Part No. 0804-
0147-0000.
Note: A current transformer input
is not available for Output 1 or 3
if a process output.
Note: 24 VЕ Е input power re-
quired to use single cycle,vari-
able time base output function.
Figure 14a — Output 1 Open Collector
PD_ _ - C_ _ _ - _ _ _ _
• Maximum current sink 200 mAÎ (dc)
• Maximum supply voltage 42VÎ (dc)
• Output does not supply power
Figure 14b — Output 1 Process
PD_ _ - F_ _ _ - _ _ _ _
• Analog output is scalable between 0 to 10VÎ (dc) or 0 to 20 mAÎ (dc)
• Load capability: voltage 1 k
Ω
minimum; current 800
Ω
maximum
• Output supplies power
• Cannot use voltage and current output at the same time
Figure 14c — Output 2 Mechanical Relay
PD_ _ - _ E _ _ - _ _ _ _
• Form C contacts
• 2 A, resistive
• 125 VA pilot duty, 120/240VÅ (ac), inductive
• 240VÅ (ac) maximum
• 30VÎ (dc) maximum
• See Quencharc note
• For use with ac or dc
• Minimum load current: 10 mA
• Output does not supply power
Internal Circuitry
COM.
N.O.
Mechanical Relay
17
18
N.C. 16
16 17 18
18 normally open
17 com
16 normally closed
13 14 15
15 amps +
13 volts +
14 com -
Internal Circuitry
dc-
COM.
dc+
42VÎ (dc) maximum
Open Collector
13
15
14
Load
-
+
Power
Supply
- +
Class 2 power source
required for agency
compliance.
13 14 15
15 dc -
13 dc +
14 com