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24-00 FM Function
Option:
Function:
[0] Disabled
Fire Mode Function is not active.
[1] Enabled-Run
Forward
In this mode, the motor will continue to
operate in a clockwise direction.
[2] Enabled-Run
Reverse
In this mode, the motor will continue to
operate in a counter-clockwise direction.
[3] Enabled-Coast
When this mode is enabled, the output is
disabled and the motor is allowed to
coast to stop.
[4] Enabled-Run
Fwd/Rev
NOTE!
In the above, alarms are produced or ignored in
accordance with the selection in
24-09 FM Alarm Handling
.
24-05 FM Preset Reference
Range:
Function:
0 %
*
[-100 - 100 %] Enter the required preset reference/
setpoint as a percentage of the Fire Mode
Max Reference set in Hz.
24-09 Fire Mode Alarm Handling
Option:
Function:
[0] Trip+Reset,
Crit Alar
If this mode is selected, the adjustable
frequency drive will continue to run, ignoring
most alarms, even if doing so it may result in
damage of the adjustable frequency drive.
Critical alarms are alarms which cannot be
suppressed, but a restart attempt is possible
(Infinity Automatic Reset).
[1] Trip, Critical
Alarms
In case of a critical alarm, the adjustable
frequency drive will trip and not auto-restart
(Manual Reset).
[2] Trip, All
Alarms/Test
It is possible to test the operation of Fire
Mode, but all alarm states are activated
normally (Manual Reset).
NOTE!
Warranty-affecting alarms. Certain alarms can affect the
lifetime of the adjustable frequency drive. If one of these
disregarded alarms occurs while in Fire Mode, a log of the
event is stored in the Fire Mode Log.
This is where the 10 latest events caused by warranty-
affecting alarms, fire mode activation and fire mode
deactivation are stored.
NOTE!
The setting in
14-20 Reset Mode
is disregarded if Fire Mode
is active (see parameter group 24-0*, Fire Mode).
No:
Description
Critical
Alarms
Warranty
Affecting
Alarms
4
Mains ph. Loss
x
7
DC over volt
x
8
DC under volt
x
9
Inverter overloaded
x
13
Over current
x
14
Earth fault
x
16
Short circuit
x
29
Power card temp
x
33
Inrush fault
x
38
Internal fault
x
65
Ctrl. card temp
x
68
SafeStop
x
Table 3.14
3.16.2 24-1* Drive Bypass
The adjustable frequency drive includes a feature which
can be used to automatically activate an external electro-
mechanical bypass in case of the event of a Fire Mode
Coast (see
The bypass will switch the motor to operation direct on
line. The external bypass is activated by means of one of
the digital outputs or relays in the adjustable frequency
drive, when programmed in parameter group 5-3* or
parameter group 5-4*.
NOTE!
The drive bypass cannot be deactivated if in Fire Mode. It
can be deactivated only by either removing the Fire Mode
command signal or the power supply to the adjustable
frequency drive!
When the Drive Bypass function is activated, the display on
the LCP will show the status message Drive Bypass. This
message has a higher priority than the Fire Mode status
messages. When the automatic Drive Bypass function is
enabled, it will cut in the external bypass according to the
below sequence:
Parameters
VLT
®
HVAC Basic Drive Programming Guide
MG18B222 - VLT
®
is a registered Danfoss trademark
3-63
3
3
Содержание VLT HVAC Drive FC 100 Series
Страница 1: ...MAKING MODERN LIVING POSSIBLE Programming Guide VLT HVAC Basic Drive ...
Страница 2: ......
Страница 14: ...Introduction VLT HVAC Basic Drive Programming Guide 1 8 MG18B222 VLT is a registered Danfoss trademark 1 1 ...
Страница 28: ...How to Program VLT HVAC Basic Drive Programming Guide 2 14 MG18B222 VLT is a registered Danfoss trademark 2 2 ...
Страница 100: ...Troubleshooting VLT HVAC Basic Drive Programming Guide 4 8 MG18B222 VLT is a registered Danfoss trademark 4 4 ...
Страница 116: ...Parameter Lists VLT HVAC Basic Drive Programming Guide 5 16 MG18B222 VLT is a registered Danfoss trademark 5 5 ...
Страница 121: ...Index VLT HVAC Basic Drive Programming Guide MG18B222 VLT is a registered Danfoss trademark 6 5 ...
Страница 122: ...www danfoss com drives MG18B222 130R0221 MG18B222 Rev 2012 10 22 ...