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2 3-3 <3 installation and wiring – Yokogawa Extractive Oxygen Gas Analyzer TDLS220 User Manual

Page 13

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IM 11Y01B02-11E-A 3rd Edition :August 14, 2012-00

3-2

3-3

<3 INSTALLATION AND WIRING>

3.3 Wiring Details
Screw Terminal Block (SAK2.5) Details:
(also see following diagram for internal wiring).

TB

Field or
Factory

Terminal

No.

Function

Notes/Comments

1

Factory

1

+24 VDC

DC power from the 24 power supply in adjacent

enclosure.

2

0 VDC

3

+24 VDC

24VDC power take-off to integral purge indicator/switch unit
(when fitted)

4

0 VDC

2

Field

1

SV 1 remote

Cal/Val initiate signal loop (SV # 1) to Remote voltage free con-
tacts/switch. Do not apply external power!

2

3

SV 2 remote

Cal/Val initiate signal loop (SV # 2) to Remote voltage free con-
tacts/switch. Do not apply external power!

4

5

SV 3 remote

Cal/Val initiate signal loop (SV # 2) to Remote voltage free con-
tacts/switch. Do not apply external power!

6

3

Field

1

SV 1 +

24VDC power output signal to actuate external solenoid valve # 1.
Max 12 Watts requires ferrite coil on wires.

2

SV 1 -

3

SV 2 +

24VDC power output signal to actuate external solenoid valve # 2.
Max 12 Watts requires ferrite coil on wires.

4

SV 2 -

5

SV 3 +

24VDC power output signal to actuate external solenoid valve # 3.
Max 12 Watts requires ferrite coil on wires.

6

SV 3 -

4

Field

1

Warning
Alarm

NC - Closed contact on Warning/Power-off state

2

C - Common contact – rated max 1A @ 24 VDC

3

NO - Open contact on Warning/Power-off state

4

Fault
Alarm

NC - Closed contact on Warning/Power-off state

5

C - Common contact – rated max 1A @ 24 VDC

6

NO - Open contact on Warning/Power-off state

5

Field

1

User Alarm

NC - Closed contact on Warning/Power-off state

2

C - Common contact – rated max 1A @ 24 VDC

3

NO - Open contact on Warning/Power-off state

4

Purge Alarm

C - Common contact – rated max 265 V AC/DC, 150 mA

5

NO - Open contact on loss of purge pressure

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