Stulz C2020 User Manual

EN/07.2013/58/74
OUTPUT POWER LIMIT STATUS 75
EEV IN FAILURE 76
AMBIENT TEMPERATURE INVALID 77
SUCTION PRESSURE INVALID 78
CONDENSER PRESSURE INVALID 79
PERIPHERALS ERROR 80
OUT OF ENVELOPE 81
OVER CURRENT 82
OVER VOLTAGE 83
DRIVE TEMPERATURE HIGH 84
SUPPLY VOLTAGE LOW 85
DISCHARGE TEMPERATURE HIGH 86
DISCHARGE TEMPERATURE INVALID 87
INTERNAL ERROR 88
PLC COMMUNICATION ERROR 90
HOURS OF OPERATING OF FANS 91
RUNTIME ERROR 92
THERMOSTAT HIGH TEMP 93
CONDENSER PRESSURE 94
ALARM ACTIVE 95
FAN 1 ERROR 96
FAN 2 ERROR
97
FAN 3 ERROR 98
FC STOP BY WIND 99
FC STOP BY FIRE 100
EVAPORATOR FAN 1 BROKEN 101
EVAPORATOR FAN 2 BROKEN 102
INVERTER 103
EEV DRIVER 104
WATER FLOW 105
Internal use 106
Internal use 107
Internal use 108
Read holding registers (0x03) and Write single register (0x06)
With the command Read Holding Registers (command code 0x03) it’s possible to read the parameters listed below,
while with the command Write Holding Registers (command code 0x06) it’s possible to set these parameters. The
ModBus addresses of the parameters are the same for the two commands.
The value is sent by two bytes, the first one is the MSB.
ModBus function 0x03: read holding registers
ModBus function 0x06: write single registers
ModBus address
(S001) Cooling set point 1
(S002) Second cooling set point 2
(S003) Heating set point 3
(S004) Second heater set point 4
(S005) Humidity set point 5
(S006) Cooling band 6
(S007) Heating band 7

Stulz C2020 Specifications

General

Brand	Stulz
Model	C2020
Category	Controller
Language	English