YOKOGAWA UT750 User Manual

1-8
<Toc> <1. Installation>
IM 05D01B02-41E
Feedback Resistance Input
Provided for position proportional type only (terminals
45
-
46
-
47
)
• Slide resistance value: 100  to 2.5 k of overall resistance (burnout detection for
sliding wire provided)
• Measuring resolution: 0.1% of overall resistance
Loop Power Supply
Power is supplied to a two-wire transmitter.
(15 V DC: terminals
14
-
15
)
A resistor (10 to 250 ) connected between the controller and transmitter converts a
current signal into a voltage signal, which is then read via the PV input terminal.
Supply voltage: 14.5 to 18.0 V DC, max. 21 mA (provided with a protection circuit
against a field short-circuit)
Retransmission Output
Either PV, target setpoint, or control output is output.
Either the retransmission output or the loop power supply can be used with terminals
14
-
15
.
• Number of outputs: 1 or 2 (terminals
14
-
15
, terminals
16
-
17
)
• Output signal: 4-20, 0-20, 20-4, or 20-0 mA DC (where, outputting signal levels of less
than 0 mA is not feasible)
• Load resistance: 600  or less
• Output accuracy: 0.1% of span (5% of span for 1 mA or less.)
Under standard operating conditions (232C, 5510% RH, power frequency of 50/
60 Hz)
Control Output
Universal output system, The output type can be selected with the software.
Relay contact output(s) for the position proportional type.
• Current output
(Single-loop type: terminals
16
-
17
; heating-side output: terminals
16
-
17
, cooling-side
output: terminals
14
-
15
)
Number of outputs 1 or 2 (two for heating/cooling control),
switched between a voltage pulse output
and current output.
Output signal 4-20, 0-20, 20-4, or 20-0 mA DC
Load resistance 600  or less
Output accuracy 0.1% of span
(5% of span for 1 mA or less)
Under standard operating conditions (232C,
5510% RH, power frequency of 50/60 Hz)
• Voltage pulse output
(Single-loop type: terminals
16
-
17
; heating-side output: terminals
16
-
17
, cooling-side
output: Not selected)
Number of
outputs
1
switched between a voltage pulse output and current output.
Output signal On-voltage = 12 V or more (load resistance: 600 Ω or more)
Off-voltage = 0.1 V DC or less
Resolution 10 ms or 0.1% of output, whichever is larger
1st Edition : May 31,2000-00

YOKOGAWA UT750 Specifications

General

Brand	YOKOGAWA
Model	UT750
Category	Controller
Language	English