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Danfoss EKD 316 Installation Seite 6

Electronic controller, mod bus version

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Valve overview
n03
Valve type
0
ETS 12.5, ETS 25, KVS 15
1
ETS 50, CCM 10, CCM 20, CCM30
2
ETS 100, CCM 40
3
ETS 250, KVS 42
4
ETS 400
5
User defined
6
Saginomiya UKV/SKV/VKV/PKV
7
ETS 6
8
CCMT 2, CCMT 4, CCMT 8
9
CCMT 16
10
CCMT 24
11
CCMT 30
12
CCMT 42
13
CTR
14
CCMT 0
15
CCMT 1
Start of controller
When the electric wires have been connected to the controller,
the following points have to be attended to before the regulation
starts:
1. Switch off the external ON/OFF switch that starts and stops the
regulation.
2. Follow the menu survey and set the various parameters to the
required values.
3. Switch on the external switch, and regulation will start.
4. Follow the actual room temperature or superheat on the display.
If the superheating fluctuates
When the refrigerating system has been made to work steadily,
the controller's factory-set control parameters should in most
cases provide a stable and relatively fast regulating system.
If the system however fluctuates, this may be due to the fact that
too low superheat parameters have been selected:
If adaptive superheat has been selected (n21=1):
Adjust: n09, n10 and n18.
If load-defined superheat has been selected (n21=2):
Adjust: n09, n10 and n22.
Alternatively it may be due to the fact that the set regulation
parameters are not optimal.
© Danfoss | DCS (sw) | 2016.08
n37
n38
The controller can give the following messages:
E1
262
300
E24
262
300
E25
353
300
E19
381
300
381
300
E20
-
-
A11
24
16
A44
24
16
S5
110
220
S10
80
200
non
140
200
230
200
220
200
660
75
24
16
24
16
If the time of oscillation is longer than the integration time:
(T
> T
p
1. Increase T
2. Wait until the system is in balance again
3. If there is still oscillation, reduce K
4. Wait until the system is in balance
5. If it continues to oscillate, repeat 3 and 4
If the time of oscillation is shorter than the integration time:
(T
< T
p
1. Reduce K
2. Wait until the system is in balance
3. If it continues to oscillate, repeat 1 and 2.
Check that the ETS valve closes when the
supply voltage to the controller is interrupted
This control is performed if the controller is connected to battery
backup.
The battery will make the step motor move to the end stop and
thus close the valve.
Fault in controller
S2 Sensor error
error
S4 Sensor error
message
The input signal on terminals 21-22 is outside the range.
The input signal on terminals 17-19 is below
minumum limit (P0 signal)
No refrigerant has been selected
Alarm
message
Battery alarm (no voltage or too low voltage)
MOP
Status codes
Refrigeration stopped r12=off
Regulation
, (T
is, say, 240 seconds))
n
n
to 1.2 times T
n
p
, (T
is, say, 240 seconds))
n
n
by, say, 20% of the scale reading
p
by, say, 20%
p
DKRCC.PI.RP0.B6.51 | 6

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