ECKELMANN VS 300 - 5.2 Installation Procedures

Function of VS 300
54
Doku-Version 2.05 - Firmware 2.10 - 15. September 2017
d
t
> d
t_max
is equivalent to d
t
= d
t_max
t
v
= Variable actuating time
t
v_max
= Max. actuating time (can be defined for each stage)
d
t
= Control error
d
t_max
= Max. control error (definable)
Actuating time is calculated at every controller cycle. The variable time is recalculated and the time elapsed
since the last actuating time is compared with the calculated time. If the calculated actuating time is less than or
equal to the elapsed time, fan actuation takes place when the control error is greater than the defined neutral
zone. The following diagram illustrates calculation of actuating time.
ZNR. 51203
65 330 E1
Contro
l error dt
[°C]
Run time [s]
Condenser fan run times
0
2
4
6
dt
8
10
dt max
12
0
20
40
60
80
100
120
140
120
160
180
200
220
240
t
v max
Basic time t
b
Run time t = t+t
b
t+t
v maxbv
t
b
t
v
4.5.10 Determining the high-pressure setpoint
As standard, the VS 300 Pack Controller works with a defined fixed setpoint for t
c
.
In the parameter list S3, i.e. under the menu item 'System Configuration' (see chapter 7 - Parameter List and
Menu Structure - Setpoints System Configuration) the parameters for
- Enable room temperature
- Enable humidity
are set to '0' (i.e. 'OFF') and the address of the controller from which the data should be obtained is set to
'---'.
However, when the VS 300 is networked via a CAN Bus module (see chapter 1 - System Configuration) with
other pack controllers (VS 3010, VS 3010 BS or FS 3010), it is possible to employ additional values for the tc
setpoint evaluation.
integrierte Bedienung
LED-Anzeige VS 300
Display
AL 300 oder CI 3000
Description
See section 7 Parameter List
an Menu Structure/Parameter
List S3
Freig. ta RK1/RK2 AUS Enabling of sensor for temperature shift in CL1/CL2
See section 7 Parameter List
an Menu Structure/Parameter
List S3
FreiFeucht.RK1/RK2 Enabling of sensor for humidity shift in CL1/CL2
The evaluation of the tc setpoint can then be carried out relative to the outside temperature (setpoint adjust
ment). The parameter for 'Enable outside temperature' must be set to 1 (i.e. 'ON') in this case.
The outside temperature must be provided via CAN Bus by another pack controller (VS 3010, VS 3010 BS or
FS 3010) within the system.