Watlow Series PD - Manual (Page 9)

W a t l o w S e r i e s P D
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7
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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
Ó
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.
Figure 7a — Thermocouple Input 1
(all model numbers)
Thermocouples are polarity sensitive. The negative lead (usually red) must be
connected to terminal 9.
• Input impedance: >20 M
Ω
Figure 7b — Thermocouple Input 2
PDD _-_ _ _ _-_ _ _ _
Thermocouples are polarity sensitive. The negative lead (usually red) must be
connected to terminal 5.
• Input impedance: >20 M
Ω
• Input 2 isolated from Input 1
Figure 7c — 2-Wire RTD Input 1 (100
Ω
DIN curve 0.00385
Ω
/
Ω
/°C)
(all model numbers)
Terminals 9 and 11 must be shorted for a two-wire RTD.
• Nominal excitation current: 250
µ
A
Figure 7d — 3-Wire RTD Input 1 (100
Ω
DIN curve 0.00385
Ω
/
Ω
/°C)
(all model numbers)
The S1 lead (usually white) must be connected to terminal 10.
• Nominal excitation current: 250
µ
A
9
10 11 12
10 S1
11 S2
9 S3
12 INFOSENSE-P™ DATA
INFOSENSE-P™ GND
9
10 11 12
10 S1
11 S2
9 S3
9
10 11 12
10 S1
11 S2
9
5
6 7 8
6 +
5
-
8 INFOSENSE-P™ DATA
INFOSENSE-P™ GND
5
6 7 8
6 +
5
-
9
10 11 12
10 +
9
-
12 INFOSENSE-P™ DATA
INFOSENSE-P™ GND
9
10 11 12
10 +
9
-