EC3-33x Coldroom Controller with EX5
User Manual
EC3-33x
A.6.5.063E - Rev 4
17
Emerson Electric GmbH & Co - ALCO CONTROLS - Heerstr. 111 - D-71332 Waiblingen - Germany - Tel.: ..49 (0) 7151 509 0 - Fax: 49 (0) 7151 509 200
Fan Object
The fan object controls the behavior of the fan. If the object is disabled the fan will be turned off , no network variable updates will be
performed and the object will no react on any input nv update.. The status information is send by the nvoStatus of the node object. If a
failure is detected, the “in_alarm” bit in the status structure will be set, if the fan is in manual control, the “manual control” bit is set..
Network Variables
Variable Type
Name
Type
Meaning
SNVT_lev_disc
nvoFanState
O
Status of the fan
SNVT_switch
nviForcedFan
I
Manual control of fan, state = 1 to activate manual control, value = 0 fan off,
value =1 fan on
SNVT_state
nvoFanStatus
O
Status of the fan object
UNVT_FAN
nciFanCnfg
C
Configuration parameters of the fan object
The network variable “nvoFanStatus” will represent the status of the fan object.
Bit No.
Description
0
Fan off / on
1
Off / on function delayed
2
Manual control
8
1 = Termination error
Configuration Parameters
Fan
UNVT_FAN
Code
Description
Variable type
Name
Unit
Min
Max
Default
Res.
IR
Kb
Lon
0
F1
Fan startup sequence after defrost
unsigned short
StartUp
0
4
0
y
y
y
*1
1
F2
Fan status by thermostat off
unsigned short
FanThermOff
0
2
0
y
y
y
*2
2
F3
Fan state during defrost
unsigned short
FanDefr
0
1
0
y
y
y
*3
3
F4
Fan stop delay time by thermostat off
unsigned short
OffDelay
min
0
30
0
y
y
y
4
F5
Fan state during cleaning
unsigned short
FanCleaning
0
1
0
y
y
y
*4
5
Fd
Fan start delay time after defrost
unsigned short
StartUpDelay
min
0
30
0
y
y
y
6
Ft
Fan on temperature after defrost
signed short
StartUpTemp
°C
-40
40
0
y
y
y
7
Fan temperature sensor
unsigned short
Sensor
0
1
0
n
n
y
*5
Total 8 bytes
*1
0 = on, 1 = time, 2 = temp, 3 = first, 4 = last
*2
0 = on, 1 = off, 2 = delayed by F4
*3
0 = on, 1 = off
*4
0 = off, 1 = on
*5
0 = Sensor internal
1 = Sensor from LON network
Alarm Messages
Alarm messages will be send by the “nvoAlarm” of the node object
.
Condition
SNVT #
Alarm Value
Message
Priority
Termination failure occurs
83
IntAlarm
AL_ALM_CONDITION
PR_LEVEL_0
Termination failure disappears
83
IntAlarm
AL_NO_CONDITION
PR_LEVEL_0
SNVT_state IntAlarm; // Internal alarm status
// Bit0 = 1 Terminated by time
// Bit1 = 1 Terminated by temperature
// Bit1 = 1 Terminated by temperature
