(4) Definition of digital input in ModBus protocol
Bit
bit0
bit1
bit2
bit3
bit4
bit5
bit6
bit7
Bit8-15
Switch Input
FLOW SWITCH
DISCHAGE PRESSURE SWITCH
HIGH PRESSURE SWITCH
OIL LEVEL SWITCH
MOTOR PROTECTION
EXT.INTERLOCK
START FAILURE
REMOTE SWITCH
RESERVED
Status
0=open 1=close
0=open 1=close
0=open 1=close
0=open 1=close
0=open 1=close
0=open 1=close
0=open 1=close
0=open 1=close
0=open 1=close
(5) Definition of digital output in ModBus protocol
Bit
bit0
bit1
bit2
bit3
bit4
bit5
bit6
bit7
bit8
Bit14
bit15
Digital output
CHILLED LIQUID PUMP
COMPRESSOR WYE CONTACTOR
COMPRESSOR DELTA CONTACTOR
COMPRESSOR OIL HEATER
LIQUID LINE BYPASS SOLENOID1
ALARM
LIQUID INJECTING
LIQUID LINE BYPASS SOLENOID2
RUNNING STATUS
CR4 LOAD SOLENOID
CR3 UNLOAD SOLENOID
Status
0=open 1=close
0=open 1=close
0=open 1=close
0=open 1=close
0=open 1=close
0=open 1=close
0=open 1=close
0=open 1=close
0=open 1=close
0=open 1=close
0=open 1=close
YEWS-E Water Cooling Screw Chiller/Heat Pump
47
Summary of Contents for YEWS Series
Page 79: ...YEWS electrical drawing compressor for 50Hz power 74...
Page 80: ...YEWS electrical drawing main board YEWS100H 130H 170H 200H 210H for 50Hz power 75...
Page 81: ...YEWSelectrical drawing main board YEWS215P for 50Hz power 76...
Page 82: ...77 YEWS electrical drawing Main Board YEWS100P 130P 170P 200P for 50Hz power...
Page 83: ...YEWS electrical drawing compressor for 60Hz power 78...
Page 84: ...YEWS electrical drawing main board YEWS100H 130H 170H 200H for 60Hz power 79...
Page 85: ...YEWS electrical drawing main board YEWS215P for 60Hz power 80...
Page 86: ...YEWS field connection for 60Hz power 81...
Page 87: ...Transformer for230V 3P 60Hz Application 82...
Page 88: ...Form No AP1105 IOM01 1216 EN Supersedes AP1105 IOM01 0316 EN...