14-22 Operation Mode
Option:
Function:
6.
Carry out various tests.
7.
The results are displayed on the LCP
and the frequency converter moves
into an infinite loop.
8.
14-20 Reset Mode
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 1.
Illustration 6.18
Illustration 6.19
[2] Initiali-
sation
Resets all parameter values to default settings,
except for
15-03 Power Up's
,
15-04 Over Temp's
and
15-05 Over Volt's
. The frequency converter
will reset during the next power-up.
14-20 Reset Mode
will also revert to the default
setting
[0] Normal operation
.
14-52 Fan Control
Option:
Function:
Select the minimum speed of the internal fan.
[0]
*
Auto
Runs 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
35 °C, and at full speed at approx. 55 °C.
[1]
On 50%
[2]
On 75%
[3]
On 100%
14-53 Fan Monitor
Option:
Function:
Select which reaction the frequency converter
should take in case a fan fault is detected.
[0]
Disabled
[1]
*
Warning
[2]
Trip
14-60 Function at Over Temperature
Option:
Function:
If either heatsink or control card temperature
exceeds a factory-programmed temperature limit, a
warning will be activated. If the temperature
increases further, select whether the frequency
converter should trip (trip locked) or derate the
output current.
[0]
Trip
The frequency converter will trip (trip locked) and
generate an alarm. Power must be cycled to reset
the alarm, but will not allow restart of the motor
until the heat sink temperature has dropped below
the alarm limit.
[1]
*
Derate If the critical temperature is exceeded the output
current will be reduced until the allowable
temperature has been reached.
14-61 Function at Inverter Overload
Option:
Function:
Is used in case of steady overload beyond the
thermal limits (110% for 60 sec.).
[0]
Trip
The frequency converter trips and provides an
alarm.
[1]
*
Derate Reduce pump speed to decrease the load on the
power section and allowing this to cool down.
14-62 Inv. Overload Derate Current
Range:
Function:
95 %
*
[50 - 100
%]
Defines the desired current level (in % of
rated output current for the frequency
converter) when running with reduced
pump speed after load on the frequency
converter has exceeded the allowable limit
(110% for 60 s).
Parameter Descriptions
Operating Instructions VLT
®
CDS302 and CDS303
98
MG34M302 - VLT
®
is a registered Danfoss trademark/Commercial Compressor
6
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