YOKOGAWA UT750, Instruction Manual

Page: 21 / 108

<T
oc>
<1. Installation>
1-15
IM 05D01B02-41E
■
UT750 Single-loop Heating/Cooling Control (Model UT750-0
䊐
or UT750-5
䊐
)
1
2
3
4
5
6
7
8
9
10
41
42
43
44
45
46
47
48
49
50
31
32
33
34
35
36
37
38
39
40
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
16
17
18
19
20
* Retransmission output 1 is not available if a
15 V DC loop power supply is used.
* If you define the cooling-side output as
current output, retransmission output 1 and
the 15 V DC loop power supply can no
longer be used.
The controller is factory-set to the Single-loop Control
type. Change the setting of the Control Output type
(OT1) parameter to the Heating/Cooling Control.
IMPORTANT
8
9
10
L
N
CAUTION
Before carrying out wiring, turn off the power
to the controller and check that cables to be
connected are not alive with a tester or the like
because there is a possibility of electric shock.
Power supply
Power supply
Allowable range: 100-240 V AC (
⫾
10%)
(free voltage)
50/60 Hz shared
1
2
3
NC
NO
COM
Relay contact output
Contact rating: 250 V AC, 3 A
30 V DC, 3 A (resistance load)
Note: Select this option from the
OT1 parameter.
Cooling-side control output
28
29
High performance
RS-485 communication
* Wiring can only be carried out
for controllers with
communication functions.
30
RDB(+)
RDA(-)
SG
Communication 1
(PSL1) Communication 2
(PSL2)
23
24
RS-485 communication
25
26
27
SDB(+)
SDA(-)
RDB(+)
RDA(-)
SG
21
22
Remote input
* Wiring can only be carried out for
controllers with remote input.
Specify in a range of
1-5 V DC, 0-2 V DC,
or 0-10 V DC.
-
+
Default: 1-5 V DC
12
13
TC input
11
12
RTD input
13
12
13
mV/V input
Installation category (overvoltage category): II (IEC1010-1)
A
b
B
NOTE
-
+
-
+
PV input * Not configured at factory before shipment
See “2. Initial Settings.”
12
13
Note: Connecting a 250
Ω
resistor to the terminals is
optional.
Model: X010-250-2 (resistor with M3.5 crimp-on terminal
lugs)
* When receiving 4-20 mA DC current signals,
set the PV input type to 1-5 V DC (setpoint “41”).
䊏
Receiving 4-20 mA DC Current
Signals with the Controller
250
Ω
4-20mA
-
+
Retransmission output 1*
14
15
4-20 or
0-20 mA DC
Default: 4-20 mA DC
-
+
14
15
4-20 or
0-20 mA DC
Default: 4-20 mA DC
-
+
14
15
15 V DC loop power supply*
14.5-18.0 V DC
(21 mA DC max.)
-
+
* Factory-set to “PV retransmission.”
16
17
Current/voltage
pulse output
0-20mADC,
4-20mADC
Voltage pulse (12 V)
16
17
Retransmission
output 2*
Default: 4-20 mA DC
0-20mADC,
4-20mADC
-
+
-
+
Default: Unspecified
retransmission type
* Retransmission output 2 is available
only when “relay” is selected as the
type of heating-side control output.
Note: Select this option from the OT1 parameter.
Heating-side
control output
Common
Contact rating: 12 V DC, 10 mA or more
Remote when DI7=ON
Local when DI7=OFF
STOP when DI6=ON
RUN when DI6=OFF
AUTO when DI5=ON
MAN when DI5=OFF
DI1
DI2
1.SP2.SP 3.SP4.SP
ON
ON OFF
OFF
ON
ON OFF
OFF
5.SP 6.SP7.SP 8.SP
ON
ON OFF
OFF
ON
ON OFF
OFF
DI3
DI4
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
ON
When switching among target setpoints 1 to 8:
* If all of the contact inputs are set to OFF,
the controller uses the immediately
preceding target setpoint.
19
18
External contact inputs
40
39
38
37
20
DI1
DI2
DI3
DI4
DI5
DI6
COM
19
18
40
39
38
37
20
DI1
DI2
DI3
DI4
DI5
DI6
COM
+5V
+5V
+5V
+5V
+5V
+5V
36
DI7
36
DI7
+5V
Contact Transistor contact
UT
6
5
External contact outputs
4
7
34
33
DO1
DO2
DO3
COM
DO4
DO5
Relay
Transistor
Alarm 3 output
Alarm 1 output
Alarm 2 output
Cooling-side control
output (Note)
Common
Cooling-side control
output (Note)
32
DO6
31
DO7
35
COM
Alarm 4 output
Common
UT
No function
Relay contact rating: 240 V AC, 1 A
30 V DC, 1 A (resistance load)
Transistor contact rating: 24 V DC, 50 mA
* The functions of the external contact outputs are the defaults for single-loop
heating/cooling control. To change the functions, reconfigure the contact output
registration setup parameters.
Note: If you define the DO3 output as the cooling-side control output, the DO4 output
serves as the alarm 4 output. Inversely, if you define the DO4 output as the
cooling-side control output, the DO3 output serves as the alarm 3 output.
OT1=4 (factory-set default) OT1=5
Correspondence between parameter OT1 and heating-side output types/cooling-side output types
OT1=6 OT1=7 OT1=8 OT1=9 OT1=10 OT1=11 OT1=12
The types of control output, “relay output” and “voltage pulse output” shown in the table above refer to those of time proportional control.
To change to a relay output for on-off control, select “Relay Terminals” and change the setpoint of the proportional band to “0.”
Heating side: Relay output
(terminals , and )
Cooling side: Relay output
(terminals and )
1 2 3
Heating side: Voltage pulse output
(terminals and )
Cooling side: Relay output
(terminals and )
16 17
Heating side: Current output
(terminals and )
Cooling side: Relay output
(terminals and )
16 17
Heating side: Relay output
(terminals , and )
Cooling side: Transistor output
(terminals and )
1 2 3
Heating side: Relay output
(terminals , and )
Cooling side: Current output
(terminals and )
1 2 3
Heating side: Voltage pulse output
(terminals and )
Cooling side: Transistor output
(terminals and )
16 17
Heating side: Current output
(terminals and )
Cooling side: Transistor output
(terminals and )
16 17
Heating side: Voltage pulse output
(terminals and )
Cooling side: Current output
(terminals and )
16 17
Heating side: Current output
(terminals and )
Cooling side: Current output
(terminals and )
16 17
* OT1 is a setup parameter.
You can change the settings of the parameter OT1 to change the control output types. See “2. Initial Settings.”
35 34 35 34 35 34 15 14 15 14 15 14 4 7 4 7 4 7
Heating-side control output
* The functions of the external contact inputs are the defaults for single-loop heating/cooling control.
To change the functions, reconfigure the contact input registration setup parameters.
Note: External Contact Input
If the power is turned on when the
external contact input is OFF, the
mode (SPNO, R/L, or A/M)
existing before the power is turned
off will be continued. (except for
RUN/STOP)
1st Edition : May 31,2000-00