Datasheet

KT (AKT2,4,7,8,9,4H,4B)
14
EXTERNAL CONNECTION DIAGRAM
5. KT4H/4B series
1. KT2 series
• TC: Input terminal for thermo couple.
• RTD: Input terminal for the resistance temperature sensor.
• DC: Input terminal for DC current or DC voltage.
For DC current input, connect a separately sold receipt resistor (50Ω) between the input
terminals.
• OUT1: Output terminal for the control output or heating output [option: heating/cooling control].
• POWER SUPPLY: Power supply terminal.
• EV1/OUT2: Output terminal for event output 1 or cooling output [option: heating/cooling control].
• EV2: Output terminal for event output 2.
• DI: Input terminal for DI input. (There are three types of D1 input, the SV1/SV2 external switching
function, the OUT/OFF (RUN/STOP) output switching function, and timer function.)
• RS-485: Communication terminal for serial communication. (EV1, 2 is alarm output)
2. KT4 series
• POWER SUPPLY: Power supply
• OUT1: Control output 1 (heat output)
• OUT2: Control output 2 (cooling output)
• RELAY: Relay contact output
• V/A: DC voltage output/direct current output
• V: Contactless relay output
• A1: Alarm 1 output
• EVT: Event output (A2 output and heater cutoff alarm output)
• CT: CT input
• TC: Thermocouple
• RTD: Resistance temperature detection
• DC: Direct current or DC voltage
• RS-485: Serial communications
100 to 240V AC
POWER SUPPLY
24V AC/DC
POWER SUPPLY
NO
EV1/OUT2
EV2
NO
3A
250V
AC
3A
250V
AC
TC
DC
RTD
B
B
A
V/A
OUT1
RELAY
1
7
2
8
3
9
4
10
5
11
6
5 6
12
SG
D1
YA (–)RS-485 YA (+)
KT2
0.1A
24V
DC
2
3
4
5
1
2
1
7
8
9
10
6
12
13
14
15
11
POWER
SUPPLY
POWER
SUPPLY
24V AC/DC
100 to
240V AC
CT NO
NO
OUT2
SA1
EVT
3A
250V
AC
3A
250V
AC
YA (–)
YB
(+)
RS-485
NO SG
0.3A
250V
AC
KT4
TC DCRTD
B
B
A
V/A
OUT1
RELAY
3. KT8 and KT9 series
Note: That main setting No. 2 will not be possible on the KT8 and KT9 when the communications
functions is added.
4. KT7 series
• POWER SUPPLY: Power supply
• OUT: Control output
• RELAY: Relay contact output
• V/A: DC voltage output/direct current output
• EVT: Event output
[Alarm, loop fault alarm or heater cutoff alarm (optional)]
• TC: Thermocouple
• RTD: Resistance temperature detection
• DC: Direct current or DC voltage
• RS-485: Serial communications
• CT: CT input
24V AC/DC
250V AC
SV2
CT
A
B
B
TC
RTD
DC
A2/(HB)
YA(–)
YB(+)
RS-485
SG
3A
250V AC
3A
250V AC
OUT2/HB
KT8/KT9
A1
100 to 240V AC
POWER
SUPPLY
POWER
SUPPLY
GND
2
1
2
3
4
OUT1
RELAY
RELAY
V/A
V/A
NO
NO
NO
3A
250V AC
NO
NC
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
3
• POWER SUPPLY: Power
supply
• OUT1: Control output 1
• OUT2: Control output 2
(cooling output)
• RELAY: Relay contact output
• V/A: DC voltage output/direct
current output
• A1: Alarm 1 output
• A2: Alarm 2 output
• HB: Heater cutoff alarm
output
• SV2: Second main setup
• CT: CT input
• TC: Thermocouple
• RTD: Resistance
temperature detection
• DC: Direct current or DC
voltage
• RS-485: Serial
communications
1
5 6 7 8 9
2 3 41 2
POWER SUPPLY POWER SUPPLY
24V AC/DC 100to 240V AC
OUT
V/A
RELAY
KT7
250V AC
3A
0.1A
24V DC
TC
RTD
DC
A
BB
EVT
RS-485
No.1
No.1
No.2
No.3
No.4
No.5
No.6
SG
NC
YB(+)
YA(–)
NC
SG
No.6
No.1
No.6
CT
POWER SUPPLY ....... Power supply
EVT1 .......................... Alarm 1 output
EVT2 .......................... Alarm 2 output (option) or heater burn-out
Alarm output (option)
OUT1 ......................... Control output or heating output (option)
OUT2 ......................... Cooling output (option)
TC .............................. Thermocouple input
RTD ........................... Resistance temperature detection input
DC .............................. Direct current input (DCA) or DC voltage input (DCV)
(For DC voltage input, + side terminal number differs depending on the voltage.
Also, DC current input, connect s shunt resistor between No. 10 and 12 terminal.)
CT1 ............................ Current transformer input 1 (option: Single, three phase)
CT2 ............................ Current transformer input 2 (option: Three-phase)
DI ............................... Contact input (option)
RS-485 ....................... Serial communication RS-485 (option)