Watlow Series PD Ethernet Enabled Temperature and Process Manuel d'utilisateur télécharger pdf (Page 15)

Watlow Series PD ■ 13 ■ Chapter 2 Install and Wire

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.

Figure 13a — Output 1 Mechanical Relay

PD_ _ - J _ _ _ - _ _ _ _

• Form A contact

• 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

Figure 13b — Output 1 Solid-state Relay

PD_ _ - K _ _ _ - _ _ _ _

• Form A contact

• 0.5 A, resistive

• 20 VA pilot duty, 120/240VÅ (ac), inductive

• 24 to 240VÅ (ac)

• See Quencharc note

• Minimum load current 10 mA

• Maximum leakage current 100 µA

• Not for use with direct current (dc)

• Output does not supply power

Figure 13c — Output 1 Switched DC

PD_ _ - C_ _ _ - _ _ _ _

• Supply current 30 mAÎ (dc) maximum

• Supply voltage 24VÎ (dc)

• Not recommended for switching mechanical relays

• Output supplies power

Internal Circuitry

dc-

dc+

24VÎ (dc)

Load

Switched DC

13 14 15

15 dc -

13 dc +

14 com

Internal Circuitry

COM.

N.O.

Solid-state Relay

Solid-state Switch

13 14 15

15 normally open

14 com

Internal Circuitry

COM.

N.O.

Mechanical Relay

13 14 15

15 normally open

14 com

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 29 30

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Watlow Series PD Ethernet Enabled Temperature and Process Manuel d'utilisateur Page 15

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