Daikin FWEC2, Installation And Operation Manual

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Installation and operation manual
9
FWEC2
Advanced electronic controller
FC66002764
NON-SERIOUS ALARMS
■
Code A03
= water sensor error
■
Code A04
= remote humidity probe error (only if a remote
temperature probe is installed)
■
Code A05
= internal humidity probe error
N.B.
: the alarm code is displayed only when the thermostat
is switched
off
MODBUS
The protocol implemented in the controller is Modbus RTU
(9600, N, 8, 2) on RS485
FUNCTIONS IMPLEMENTED
■
0x03 : Read Holding Registers
■
0x04 : Read Input Registers
■
0x10 : Write Multiple registers
EXCEPTIONS IMPLEMENTED
Exception Code 02: Invalidate data address
LIST OF SUPERVISION PARAMETERS
ADDRESS REGISTER TYPE U.M.
0
Status R -
1
Speeds R -
2
Air temperature R [°C/10]
3
Humidity R %
4
Water temperature R [°C/10]
5
P00:
Con fi guration R -
6
P05:
Con fi g. DIN R -
7
T. Active setpoint R [°C/10]
8
T. User setpoint R [°C/10]
9
LCD version R -
50 Digital 1 R/W -
51
- R/W -
52 Setpoint - Cooling R/W [°C/10]
53
Setpoint - Heating R/W [°C/10]
54
Minimum Setpoint – Cool. R/W [°C/10]
55
Maximum Setpoint – Cool. R/W [°C/10]
56
Minimum Setpoint – Heat. R/W [°C/10]
57 Maximum Setpoint – Heat. R/W [°C/10]
58
Speeds R/W -
59
Economy Correction R/W [°C/10]
DESCRIPTION OF READ-ONLY REGISTERS [R]
■
“Staus”
“REGISTER”
H
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8
- - P04 Deum P06 P07 DI2 DI1
L
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Vh Vc Alarm MinT Eco P01 S/W On/Off
-
On/Off
: unit status (0: Off, 1=On)
-
S/W
: operation mode (0: S=cooling,1:W=heating)
-
P01
: “on unit/wall-mounted” parameter
-
Eco
: Economy logic active
-
Min.T
: Minimum Temperature logic selected
-
Alarm
: general alarm indication (activated when any of
the managed alarms is triggered)
-
Vc
: status of digital output Vc
-
Vh
: status of digital output Vh
-
DI1
: logical value of dig. input 1 (the physical status of the
input depends on the associated logic)
-
DI2
: logical value of dig. input 2 (the physical status of the
input depends on the associated logic)
-
P07
: “DIN 2 Logic” parameter
-
P06
: “DIN 1 Logic” parameter
-
Dehum
: dehumidi fi cation ON (0:no, 1:yes)
-
P04
: “water probe present” parameter
■
“SPEED” REGISTER
: current operating speed of the
indoor unit
- 0: fan OFF
- 1: extra-low speed
- 2: low speed
- 3: medium speed
- 4: high speed
■
“AIR TEMPERATURE” REGISTER
: room temperature
read by the controller and shown on the display (N.B.:
this temperature corresponds to the reading of the remote
probe if the controller is located on the unit, or the read-
ing of the internal probe in the case of a wall-mounted
controller and remote probe disconnected)
■
“HUMIDITY” REGISTER
: room humidity read by the
controller via the probe associated with the temperature
probe used
■
“WATER TEMPERATURE” REGISTER
: value read by the
water probe (SW)
■
“P00”
Register: “Controller con fi guration” parameter
■
“T. ACTIVE SETPOINT”
Register: setpoint used for tem-
perature control
■
“T. USER SETPOINT”
Register: setpoint programmed by
the user (it may differ from the active setpoint due to cor-
rections based on economy logics,…or use of the setpoint
imposed by the supervision software)
■
“LCD VERSION”
Register : de fi nes the controller type and
software version installed (0xHHSS: HH: ASCII character,
SS:sw version)
Thermostat OFF Thermostat ON