Danfoss VLT HVAC Series Programming Manual page 162

3 Parameter Description
NOTE!
The setting in par.14-20
14-21 Automatic Restart Time
Range:
3
10 s* [0 - 600 s]
14-22 Operation Mode
Option:
[0] * Normal operation
[1] Control card test
3-138
Reset Mode
is disregarded in case fire mode is active (see par. 24-0*, Fire Mode).
Function:
Enter the time interval from trip to start of the automatic reset function. This parameter is active
Reset Mode
when par.14-20
Function:
Use this parameter to specify normal operation, to perform tests or to initialize all parameters except
Power-ups
par.15-03 , par.15-04
when the power is cycled (power off-power on) to the adjustable frequency drive.
Normal operation
Select [0] for normal operation of the adjustable frequency drive with the motor
in the selected application.
Control card test
Select [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:
Control card test
1. Select
2. Disconnect the line power 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 the line power supply.
6. Carry out various tests.
7. The results are displayed on the LCP and the adjustable frequency drive moves into an
infinite loop.
8. par.14-22 Operation Mode
to start up in normal operation after a control card test.
If the test is OK:
LCP readout: Control Card OK.
Disconnect the line power supply and remove the test plug. The green LED on the control card will
light up.
If the test fails:
LCP readout: Control Card I/O failure.
Replace the adjustable frequency drive or control card. The red LED on the control card is turned
on. To test the plugs, connect/group the following terminals as shown below: (18 - 27 - 32), (19 -
29 - 33) and (42 - 53 - 54).
MG.11.C6.22 - VLT
VLT ® HVAC Drive Programming Guide
Automatic reset
is set to [1] - [13].
Over Temps Over Volts
and par.15-05
[1].
is automatically set to normal operation. Carry out a power cycle
® is a registered Danfoss trademark
. This function is active only