Yokogawa Extractive Oxygen Gas Analyzer TDLS220 - Manual (Page 26)

<5 INSTALLATION AND WIRING> 5-3
IM 11Y01B02-01E-A 4th Edition September 11, 2012-00
5.3 Wiring Details
Connect protective ground to the designated terminal of the analyzer. Use
minimum 14 AWG or equivalent. The analyzer mains must be connected to an end
user provided disconnect device (a switch or circuit breaker) with 250V, 10 A
ratings. The disconnect device must be located within 3 meters of the equipment,
and not obstructed or placed out of reach in some way. It must be clearly labeled
as the disconnect device for the TDLS220 equipment. The disconnect device must
be easily accessed and operated by the authorized personel. Water tight conduit/
cable connections must be used for the customer connections. The customer
connections should terminate in a normal environment (i.e. indoors).
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 contacts/switch. Do not apply external power!
2
3
SV 2 remote Cal/Val initiate signal loop (SV # 2) to Remote voltage
free contacts/switch. Do not apply external power!
4
5
SV 3 remote Cal/Val initiate signal loop (SV # 2) to Remote voltage
free contacts/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 @ 24VDC
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 @ 24VDC
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 @ 24VDC
3 NO - Open contact on Warning/Power-off state
4 Purge Alarm C - Common contact – rated max 265V AC/DC, 150mA
5 NO - Open contact on loss of purge pressure