14-20 Reset Mode
Select the reset function after tripping. Once reset, the frequency
converter
can be restarted.
Option: Function:
[3] Automatic reset x 3
[4] Automatic reset x 4
[5] Automatic reset x 5
[6] Automatic reset x 6
[7] Automatic reset x 7
[8] Automatic reset x 8
[9] Automatic reset x 9
[10] Automatic reset x 10
[11] Automatic reset x 15
[12] Automatic reset x 20
[13] Infinite Automatic Reset
Select [13]
Infinite Automatic Reset
for
continuous resetting after
tripping.
Application Tip:
If 14-20
Reset Mode/14-21 Automatic Restart Time is set to
auto-reset after e.g. 30 s this should be taken in consid-
eration if a relay output is set to call for a service
technician in case of an alarm.
By setting 5-40 Function Relay to [9] Alarm and 5-41 On
Delay, Relay to 40 s, the relay will only activate at either a
trip lock alarm or an alarm, which could not be auto-reset.
Only the relay output can be used for this; the digital
outputs do not have the On Delay feature.
NOTE
The
motor may start without warning. If the specified
number of automatic resets is reached within 10 minutes,
the frequency converter enters [0] Manual reset mode.
After the Manual reset is performed, the setting of
14-20 Reset Mode reverts to the original selection. If the
number of automatic resets is not reached within 10
minutes, or when a Manual reset is performed, the internal
automatic reset counter returns to zero.
NOTE
Automatic
reset will also be active for resetting safe stop
function in firmware version < 4.3x.
NOTE
The
setting in 14-20 Reset Mode is disregarded in case of
Fire Mode being active (see parameter group 24-0*, Fire
Mode).
14-21 Automatic Restart Time
Range: Function:
300 s* [0 - 600 s] Enter the time interval from trip to start of
the
automatic reset function. This parameter
is active when 14-20 Reset Mode is set to [1]
- [13] Automatic reset.
14-22 Operation Mode
Option: Function:
Use this parameter to specify normal operation,
to
perform tests or to initialise all parameters
except 15-03 Power Up's, 15-04 Over Temp's and
15-05 Over Volt's. This function is active only
when the power is cycled (power off-power on)
to the frequency converter.
[0]
*
Normal
operation
Select [0] Normal operation
for normal operation
of the frequency converter with the motor in
the selected application.
[1] Control
card
test
Select [1] Control card test 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 [1] Control card test.
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
Illustration 3.33).
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.
14-22 Operation 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.
To test the plugs, connect/group the following
terminals as shown in Illustration 3.33: (18 - 27 -
32), (19 - 29 - 33) and (42 - 53 - 54).
Parameter Description
VLT
®
Refrigeration Drive Programming Guide
94 MG16H102 - VLT
®
is a registered Danfoss trademark
33
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