Armstrong 4280 - Design Envelope Pump; Controller Wiring; Battery; Ethernet and Wifi Connectivity

installation &
operating instructions
Design Envelope 4200h & 4280
End Suction Horizontal Pumping Units
18
2.4 design envelope pump
controller wiring
fig 2.4 Controller Board
fig 2.4a
Modbus
CAN bus
rs-485
bms
bms
2.4.1 battery
The battery is used to power the real-time clock whenever the pump is
disconnected from mains power. It is recommended the battery be changed
periodically every 2 to 3 years.
2.4.2 ethernet and wifi connectivity
For BACNet tcp/ip connection to building automation system, connect connect
rj-45 cable to this port per fig. 2.4
2.4.3 can bus wiring
Connections, Low, High, and Ground as per fig. 2.4
2.4.4 rs 485 wiring
For Modbus rtu or BACNet ms/tp connection to building automation system,
connect rs485 cable to this port per fig. 2.4
2.4.5 networking options
A = + Positive
B = - Negative
G = Ground