Operating instructions

24-07 Fire Mode Feedback Source
Option: Function:
Select the feed back input to be used
for the Fire Mode feed back signal
when Fire Mode is active.
If the motor also is controlled by the
built in PID controller when in normal
operation, the same transmitter can
be used for both cases by selecting
the same source.
[0]
* No function
[1] Analog input 53
[2] Analog input 54
[3] Pulse input 29
[4] Pulse input 33
[7] Analog input X30/11
[8] Analog input X30/12
[9] Analog Input X42/1
[10] Analog Input X42/3
[11] Analog Input X42/5
[15] Analog Input X48/2
[100] Bus feedback 1
[101] Bus feedback 2
[102] Bus feedback 3
24-09 Fire Mode Alarm Handling
Option: Function:
[0] Trip+Reset,
Critical
Alarms
If this mode is selected, the frequency convert-
er will continue to run, ignoring most alarms,
even if doing so it may result in damage of the
frequency converter. 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 frequency
converter 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 frequency converter. Should one of these
ignored alarms occur whilst in Fire Mode, a log of the
event is stored in the Fire Mode Log.
Here the 10 latest events of warranty-affecting alarms,
fire mode activation and fire mode deactivation are
stored.
NOTE
The setting in par. 14-20 Reset Mode is disregarded in
case of Fire Mode being active (see par. 24-0*, Fire
Mode).
No: Description
Critical
Alarms
Warranty
Affecting
Alarms
4Mains ph. Loss x
7DC over volt x
8DC 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
3.22.2 24-1* Drive Bypass
The frequency converter includes a feature, which can be used
to automatically activate an external electro-mechanical
bypass in case of a trip/trip lock of the frequency converter or
the event of a Fire Mode Coast (see par. 24-00 Fire Mode
Function).
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 frequency converter, when program-
med in parameter group 5-3* or parameter group 5-4*.
NOTE
Important! After enabling the Drive Bypass Function, the
frequency converter is no longer Safety Certified (for
using the Safe Stop in versions, where included).
To deactivate the Drive Bypass at normal operation (Fire Mode
not activated), one of following actions must be carried out:
•
Press the Off button on the LCP, (or program two of
the digital inputs for Hand On-Off-Auto).
•
Activate External Interlock via digital input
•
Carry out a Power Cycling.
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
frequency converter!
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:
Parameter Description
VLT
®
HVAC Drive Programming Guide
164 MG.11.CA.02 - VLT
®
is a registered Danfoss trademark
3
3