Download Model UT750 Digital Indicating Controllers User`s Manual for

* Wiring can only be carried out
for controllers with
communication functions.
Communication 1 Communication 2
(PSL1)
(PSL2)
Secondary PV input * Factory-set to “TC type-K.”
See “2. Initial Settings.”
TC input
RS-485 communication
High performance
RS-485 communication
RTD input
Retransmission
output 2
42 b
43 -
Default: Unspecified
retransmission type
43 B
0-20mADC,
4-20mADC
mV/V input
42 +
NOTE
Installation category
(overvoltage category):
II (IEC1010-1)
24
SDA(-)
25 RDB(+)
+ 46
26
- 47
27
Primary * Not configured at factory before shipment
PV input See “2. Initial Settings.”
28 RDB(+)
23 SDB(+)
41 A
42 +
29
RDA(-)
30
SG
TC input
RTD input
11 A
12 b
13 12 +
13 B
SG
* Wiring can only be carried out for
controllers with auxiliary analog input.
12 +
Note: Connecting a 250 Ω resistor to the terminals is
optional.
Model: X010-250-2 (resistor with M3.5 crimp-on terminal
lugs)
13 -
Control output
2
COM
3
Note: Select this option from
the OT2 parameter.
1
2
42
32
22
12
* Time proportional PID relay contact
output is configured at factory
before shipment.
3
43
33
23
13
Contact rating: 250 V AC, 3 A
30 V DC, 3 A (resistance load)
Power supply
Power supply
L
8
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.
41
31
21
21 +
11
4
44
34
24
14
5
45
35
25
15
6
46
36
26
16
7
47
37
27
17
22 -
NOTE
Specify in a range of
1-5 V DC, 0-2 V DC,
or 0-10 V DC.
48
38
28
18
49
39
29
19
16 +
10
10
50
40
30
20
17 -
DO3 4
Common
COM 7
Alarm 4 output
(Note 2)
DO4 34
Alarm 3 output
(Note 1)
DO5 33
0-20mADC,
4-20mADC
Voltage pulse (12 V)
UT
* The functions of the external contact outputs are the defaults for cascade control with
two universal inputs. To change the functions, reconfigure the contact output registration
setup parameters.
Note 1: The alarm 3 output parameters of the DO3 and DO5 outputs share the same
function.
Note 2: The alarm 4 output parameters of the DO4 and DO6 share the same function.
14 +
16 +
17 -
0-20mADC,
4-20mADC
15 -
Load resistance: 600 Ω or less
* Retransmission output 1 is not available
if a 15 V DC loop power supply is used.
14.5-18.0 V DC
(21 mA DC max.)
* The functions of the external contact inputs are the defaults for cascade control with two
universal inputs. To change the functions, reconfigure the contact input registration parameters.
Cascade switching when
DI1 changes to on
(primary=AUTO, secondary=cascade)
Automatic switching when
DI2 changes to on
(primary=tracking, secondary=automatic)
* OT2 is a setup parameter.
You can change the settings of the parameter OT2 to change the control output types.
See “2. Initial Settings.”
DO6 32
No function
DO7 31
OT2=0 (factory-set default)
OT2=1
OT2=2
OT2=3
COM 35
Time proportional control
Relay output
(terminals 1 , 2 and 3 )
Time proportional control
Voltage pulse output
(terminals 16 and 17 )
Current output
(terminals 16 and 17 )
On-off control
Relay output
(terminals 1 , 2 and 3 )
Common
Default: 4-20 mA DC
15 V DC loop power supply*
Default: 4-20 mA DC
Alarm 4 output
(Note 2)
Correspondence between parameter OT2 and control output types
External contact inputs
Contact +5V
UT
DI1 19
+5V
DI2 18
+5V
DI2
DI3
Manual switching when
DI3 changes to on
(primary=tracking, secondary=manual)
DI3 40
+5V
DI4 39
+5V
STOP when DI4=ON (both primary and
RUN when DI4=OFF secondary)
DI5 38
+5V
REMORT when DI5=ON
LOCAL when DI5=OFF
DI6 37
Display message when
DI6 changes to on
DI7 36
No function (DI7)
Common
Transistor contact
DI1
DI4
DI5
DI6
+5V
DI7
19
18
40
39
38
37
36
COM
COM 20
20
Contact rating: 12 V DC, 10 mA or more
Note: External Contact Input
If the power is turned on when the external contact input (either of Cascade, Automatic,
and Manual) is ON, the controller judges that the external contact input is changed to ON.
1-14
Relay contact rating: 240 V AC, 1 A
30 V DC, 1 A (resistance load)
Transistor contact rating: 24 V DC, 50 mA
4-20 or
0-20 mA DC
Default: Unspecified
retransmission type
8
Alarm 3 output
(Note 1)
Retransmission
output 2*
15 -
* Factory-set to “PV retransmission.”
<1. Installation>
1st Edition : May 31,2000-00
Transistor
IM 05D01B02-53E
Relay
DO2 5
Note: Select this option from the OT2 parameter.
* Retransmission output 2 is available
only when “relay” is selected as the
type of control output.
Current/voltage
pulse output
9
External contact outputs
Alarm 2 output
Retransmission output 1*
14 +
Control output
Allowable range: 100-240 V AC (10%)
(free voltage)
50/60 Hz shared
DO1 6
Installation category (overvoltage category): II (IEC1010-1)
Default: 1-5 V DC
9
N
Alarm 1 output
13 -
Default: 4-20 mA DC
Relay contact output
NO
250 Ω 4-20mA
mV/V input
Remote input
1
䊏 Receiving 4-20 mA DC Current
Signals with the Controller
* When receiving 4-20 mA DC current signals,
set the PV input type to 1-5 V DC (setpoint “41”).
12 +
RDA(-)
43 -
NC
<Toc>
■ UT750 Cascade Control with Two Universal Inputs (Model UT750-50 or UT750-51)