YOKOGAWA UP750, User Manual

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<Toc> <1. Installation>
IM 05E01B02-41E
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, program 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.
• 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 type),
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 select)
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
• Relay contact output
(Single-loop type: terminals
1
-
2
-
3
, heating-side output: terminals
1
-
2
-
3
, cool-
ing-side output: terminals
4
-
7
)
Number of outputs 1 or 2 (two for heating/cooling type)
Output signal Three terminals (NC, NO, and common)
Contact rating 250 V AC or 30 V DC, 3 A (resistance load)
Resolution 10 ms or 0.1% of output, whichever is larger
1st Edition : May 31,2000-00