Mitsubishi MELSEC iQ-R series User Manual page 34

• Heating-cooling control (expanded mode), mix control (expanded mode), and position proportional control (expanded
mode)
Terminal Heating-cooling control (expanded
No. mode)
Symbol
1 L1H
2 L1C
3 L2H
4 L2C
5 COM-
6 NC/
CH2A
7 CH1+/
CH1B
8 CH2+/
CH2B
9 CH1-/
CH1b
10 CH2-/
CH2b
11 NC/
CH1A
12 CJ
13 NC
14 CJ
15 CH3+
16 CH4+
17 CH3-
18 CH4-
Do not remove the cold junction temperature compensation resistor from the terminal block.
6 INSTALLATION AND WIRING
32
6.1 Terminal Block
Name
CH1 Heating output
CH1 Cooling output
CH2 Heating output
CH2 Cooling output
Output common
Not used/CH2 Resistance
thermometer A
CH1 Thermocouple +/CH1
Resistance thermometer B
CH2 Thermocouple +/CH2
Resistance thermometer B
CH1 Thermocouple -/CH1
Resistance thermometer b
CH2 Thermocouple -/CH2
Resistance thermometer b
Not used/CH1 Resistance
thermometer A
Cold junction temperature
compensation resistor
Not used
Cold junction temperature
compensation resistor
CH3 Thermocouple +
CH4 Thermocouple +
CH3 Thermocouple -
CH4 Thermocouple -
Mix control (expanded mode)
Symbol Name
L1H CH1 Heating output
L1C CH1 Cooling output
L3 CH3 Output
L4 CH4 Output
COM- Output common
NC/ Not used/CH2 Resistance
CH2A thermometer A
CH1+/ CH1 Thermocouple +/CH1
CH1B Resistance thermometer B
CH2+/ CH2 Thermocouple +/CH2
CH2B Resistance thermometer B
CH1-/ CH1 Thermocouple -/CH1
CH1b Resistance thermometer b
CH2-/ CH2 Thermocouple -/CH2
CH2b Resistance thermometer b
NC/ Not used/CH1 Resistance
CH1A thermometer A
CJ Cold junction temperature
compensation resistor
NC Not used
CJ Cold junction temperature
compensation resistor
CH3+ CH3 Thermocouple +
CH4+ CH4 Thermocouple +
CH3- CH3 Thermocouple -
CH4- CH4 Thermocouple -
Position proportional control
(expanded mode)
Symbol Name
CH1 CH1 Open output
OPEN
CH1 CH1 Close output
CLOSE
CH2 CH2 Open output
OPEN
CH2 CH2 Close output
CLOSE
COM- Output common
NC/ Not used/CH2 Resistance
CH2A thermometer A
CH1+/ CH1 Thermocouple +/CH1
CH1B Resistance thermometer B
CH2+/ CH2 Thermocouple +/CH2
CH2B Resistance thermometer B
CH1-/ CH1 Thermocouple -/CH1
CH1b Resistance thermometer b
CH2-/ CH2 Thermocouple -/CH2
CH2b Resistance thermometer b
NC Not used
CJ Cold junction temperature
compensation resistor
NC Not used
CJ Cold junction temperature
compensation resistor
CH3+ CH3 Thermocouple +
CH4+ CH4 Thermocouple +
CH3- CH3 Thermocouple -
CH4- CH4 Thermocouple -