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Instructions
when the power is cycled to the frequency converter.
Select Normal operation [0] for normal operation
of the frequency converter with the motor in the
selected application.
Select Control card test [1] to test the analog and digital
inputs and outputs and the +10 V control voltage. The
test requires a test connector with internal connections.
Use the following procedure for the control card test:
1. Select Control card test [1].
2. Disconnect the mains supply and wait for
the light in the display to go out.
3. Set switches S201 (A53) and S202 (A54) = ON. / I.
4. Insert the test plug (see below).
5. Connect to mains supply.
6. Carry out various tests.
7. The results are displayed on the LCP and the
frequency converter moves into an infinite loop.
8. Par. 14-22 is automatically set to Normal
operation. Carry out a power cycle to start up in
Normal operation after a control card test.
If the test is OK:
LCP read-out: Control Card OK. Disconnect the
mains supply and remove the test plug. The
green LED on the Control Card will light up.
If the test fails:
LCP read-out: Control Card I/O failure.
Replace the frequency converter or Control card.
The red LED on the Control Card is turned on.
Test plugs (connect the following terminals to
each other): 18 - 27 - 32; 19 - 29 - 33; 42 - 53 - 54
Select Initialization [2] to reset all parameter va-
lues to default settings, except for par. 15-03, 15-
© Danfoss | DCS (CC) | 2019.04
04, and 15-05. The frequency converter will reset
during the next power-up.
Par. 14-22 will also revert to the default setting
Normal operation [0].
14-25 Trip Delay at Torque Limit
Option:
Off
14-26 Trip Delay at Inverter Fault
Option:
0 - 30 s ..........................................................................* 2s
Compressor dependent, factory set : read only
14-52 Fan Control
Option:
*Auto .............................................................................. [0]
On 50% .......................................................................... [1]
On 75% .......................................................................... [2]
On 100% ....................................................................... [3]
Function:
Select the minimum speed of the internal fan.
Select Auto [0] to run the fan only when the internal
temperature of the frequency converter is in the
range 35 °C . approx. 55°C. The fan will run at low
speed at 35C, and at full speed at approx. 55°C.
Parameters: Smart Logic Control
SLC (Smart Logic Controler is not active by fac-
tory setting for "Open Loop" system conrol. For
"Process Loop" factory setting" have been done in
order to manage:
- Pump-down function (by mean of suction
pressure sensor on input 54)
Cut-in pressure is set at 3.000 bar in parameter
13-12.0 (Comparator value)
Cut-out pressure is set 1.000 bar in parameter 13-
12.1 (Comparator value)
- Anti-short cycle by adjusting minimum dura-
tion between two starts set at 5 minutes.
These 5 minutes are set in parameter 13-20.0 (SL
Controller timer).
- Oil return management by having a minimum
On-Time at each start-up. Default setting is 0
(zero) seconds by security. This parameter has to
be adjusted in regards to each system, recom-
mandation is about 30 seconds.
Setting is done on parameter 13-20.1 (SL Control-
ler Timer)
The complete description of these parameter va-
lues and operand is done on the previous table"
CD302 main parameters for VTZ Compressors"
Smart Logic Control (SLC) is essentially a sequence
of user defined actions (see par. 13-52 [x]) execu-
ted by the SLC when the associated user defined
event (see par. 13-51 [x]) is evaluated as TRUE by
the SLC. Events and actions are each numbered
and linked together in pairs. This means that when
event [0] is fulfilled (attains the value TRUE), action
[0] is executed. After this, the conditions of event
[1] will be evaluated and if evaluated TRUE, action
[1] will be executed and so on. Only one event will
be evaluated at any time. If an event is evaluated
as FALSE, nothing happens (in the SLC) during the
current scan interval and no other events will be
evaluated. This means that when the SLC starts, it
evaluates event [0] (and only event [0]) each scan
interval. Only when event [0] is evaluated TRUE,
will the SLC execute action [0] and start evaluating
event [1]. It is possible to programme from 1 to 20
events and actions. When the last event / action
has been executed, the sequence starts over again
from event [0] / action [0].
Starting and stopping the SLC:
Starting and stopping the SLC can be done by
selecting .On [1]. or .Off [0]. in par. 13-00. The SLC
always starts in state 0 (where it evaluates event
[0]). The SLC starts when the Start Event (defined
in par. 13-01 Start Event) is evaluated
as TRUE (provided that On [1] is selected in par.
13-00). The SLC stops when the Stop Event and
reset the Smart Logic Control.
13-00 SL Controller Mode
Option:
*Off ................................................................................ [0]
On ................................................................................... [1]
Function:
Select On [1] to enable the Smart Logic Control to
start when a start command is present, e.g. via a
digital input.
Select Off [0] to disable the Smart Logic Control.
AN000086420674en-000201 | 21
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