YOKOGAWA UT Advanced UT32A, User Manual

Page: 265 / 340

17-10
IM 05P01D31-01EN
17.4.4 Valve Position Output and Feedback Input Wiring
CAUTION
1) Use an auxiliary relay for load-switching if the contact rating is exceeded.
2) Keep the relay output wires and the feedback input wires at least 30 cm apart.
3) The output relay has a limited service life. Be sure to connect a CR filter (for AC)
or diode (for DC) to the load.
4) If there is a risk of external lightning surges, use a lightning arrester etc.
5) Relays cannot be used for a small load of 10 mA or less.
► When using auxiliary relay: 17.4.3 Control Output (Relay, Current, and Voltage Pulse) Wiring
Relay contact output (UT35A) Relay contact output (UT32A)
507
508
509
VALV
HIGH
(direct)
LOW
(reverse)
COM
Contact rating: 250 V AC, 3 A
30 V DC, 3 A (resistance load)
Note: Cannot be used for a small load of 10 mA
or less.
101
102
103
VALV
HIGH
(direct)
LOW
(reverse)
COM
Contact rating: 250 V AC, 3 A
30 V DC, 3 A (resistance load)
Note: Cannot be used for a small load of 10 mA
or less.
Feedback input (resistor) (UT35A) Feedback input (resistor) (UT32A)
100%
0%
510
511
512
VALV
Shield
Resistance:
100 Ω to 2.5 k Ω
Class D grounding
(grounding resistance of 100 Ω or less)
100%
0%
310
311
312
VALV
Shield
Resistance:
100 Ω to 2.5 k Ω
Class D grounding
(grounding resistance of 100 Ω or less)
Feedback input (current) (UT35A) Feedback input (current) (UT32A)
510
512
VALV
4 to 20 mA DC
–
+
Shield
Class D grounding
*: Always set the terminal 511 in open state.
310
312
4 to 20 mA DC
–
+
Shield
Class D grounding
* Always set the terminal 311 in open state.
VALV
17.4 Wiring