7) External Nput/Output FunctOn - Mitsubishi Electric PWFY-P100VM-E-BU Data Book

(7) External nput/output functon

Preset temperature input (external analog input: 4mA-20mA)
External nput s nput through CN421, CN422 on the crcut board. (Fg. V. 1.(7).1)
[Fg. V. 1.(7).1]
3
2 1
3 2 1
Eaternal
analog nput
Use the suppled connector.
If no temperature settings are made via the MA remote controller, the temperature changes with the current of generator.
Refer to the instructions manual that came with the MA remote controller for how to make the settings.
4 mA → 10 °C 20 mA → 70 °C
External output terminal
External output termnal (refer to Fg. V. 1.(7).2) s neffectve when the crcut s open.
Refer to Table V. 1.(7).1 for nformaton about each contact.
The current n the crcut to be connected to the external output termnal must be 0.6A or less.
Table V. 1.(7).1
OUT1
OUT2
OUT3
OUT4
External input terminal
The ppng length must be wthn 100 m.
External nput termnal (refer to Fg. V. 1.(7).2 s neffectve when the crcut s open.
Refer to Table V. 1.(7).2 through Table V. 1.(7).4 for nformaton about each contact.
Only the "pump nterlock" functon s neffectve when the crcut s short-crcuted.
Connect a relay crcut to the external output termnal as shown n Fg. V. 3.(8).1.
The specifications of the relay circuit to be connected must meet the following conditions.
Contact ratng voltage >= DC15V
Contact ratng current >= 0.1A
Minimum applicable load =< 1mA at DC
[Table V. 1.(7).2] TB142A
IN1
[Table V. 1.(7).3] TB142B
IN3
IN4
[Table V. 1.(7).4] TB142C
COM+
IN5 *1
IN6 *2
IN7 *3
*1 PWFY-P100VM-E-BU
PWFY-P100, 200VM-E-AU
*2 Effectve when SW 4-3 s set to ON.
*3 Effectve when SW 4-4 s set to ON.
*4 When Heatng ECO mode s effectve, the outlet water temp. wll be changed based on ambent temp. automatcally.
*5 When Ant-freeze mode s effectve, the unt wll work for keepng set water temp. automatcally.
Note:
Dip S/W 1-1 OFF: Water Inlet Temp.
Dip S/W 1-1 ON : Water Outlet Temp.
The factory setting for Dip SW 1-1 is OFF.
Sgnal prorty = External nput > centralzed controller > remote controller
3
3
2 1
current
drecton
+
Current generator
Operaton ON/OFF
Defrost
Compressor
Error sgnal
Pump nterlock
Connecton demand
Operaton ON/OFF
Common
Hot Water/Heatng
Heatng ECO *4
Ant-freeze *5
Hot Water
Heating
2 1
current
drecton
+
[Fg. V. 1.(7).2]
[Fg. V. 1.(7).3]
TB142A
IN1 IN2
- 49 -
TB141A
OUT1 OUT2 OUT3 OUT4
TB142B TB142C
COM+
IN3 IN4 IN5IN6 IN7 IN8