Carrier 40VCB217FQEE Manual De Instalación Y Propietario página 9

System structure
2) Converter lamps definition and wire diagram
Definition of 40VCBM17FQEE lamps:
RUN
POWER
RUN: Will flash at a fixed frequency in the normal operation state. SAVE: Lights up once when data are saved.
ACCOUNT: Pulse receiving lamp; lights up when receiving a pulse and turns off when receiving the next pulse.
SLAVE 1: /
SLAVE 2: /
SLAVE 3: /
POWER: Power lamp; lit when power is on.
Hb_Send, Hb_Receive: Lamps for communicating with air conditioner; these two lamps flash alternately in the normal
communication state.
RS485+, RS485-: Lamps for communicating with computer; they flash at a high-speed frequency
Wiring diagram of 40VCBM17FQEE
To pulse
220V AC
ammeter
50HZ
SAVE ACCOUNT
Hb_ Send Hb_ Receive
SLAVE 1 SLAVE 2
RS485+ RS485-
7
SLAVE 3
reset
PCB of master unit