Fb-## Fire/Bypass Operation - GE Ecomagination AF-600 FP Programming Manual

Parameter Description

3.20 FB-## Fire/Bypass Operation

3.20.1 FB-0# Fire Mode
CAUTION
3 3
Note the frequency converter is only 1 component of the AF-600 FP system. Correct function of fire mode depends on
the correct design and selection of system components. Ventilation systems working in life safety applications have to
be approved by the local fire authorities. Non-interruption of the frequency converter due to fire mode-operation could
cause overpressure and result in damage to AF-600 FP system and components, including dampers and air ducts. The
frequency converter itself could be damaged and it may cause damage or fire. GE accepts no responsibility for errors,
malfunctions personal injury, or any damage to the frequency converter itself or components herein, AF-600 FP systems
and components herein, or other property when the frequency converter has been programmed for fire mode. In no
event shall GE be liable to the end user or any other party for any direct or indirect, special or consequential damage or
loss suffered by such party, which has occurred due to the frequency converter being programmed and operated in fire
mode.
Background
Fire mode is for use in critical situations, where it is imperative for the motor to keep running, regardless of the frequency
converter's normal protective functions. These could be ventilation fans in tunnels or stairwells for instance, where
continued operation of the fan facilitates safe evacuation of personnel in the event of a fire. Some selections of the fire
mode function cause alarms and trip conditions to be disregarded, enabling the motor to run without interruption.
Activation
Fire mode is activated only via digital Input terminals. See parameter group E-0# Digital Inputs.
Messages in display
When fire mode is activated, the display shows a status message Fire Mode and a warning Fire Mode.
Once the fire mode is again deactivated, the status messages disappears and the warning is replaced by the warning Fire M
Was Active. This message can only be reset by power-cycling the frequency converter supply. If a warranty-affecting alarm
(see parameter FB-09 Fire Mode Alarm Handling) should occur while the frequency converter is active in fire mode, the
display shows the warning Fire M Limits Exceeded.
Digital and relay outputs can be configured for the status messages Fire Mode Active and the warning Fire M Was Active. See
parameter group E-2#.
Fire M was Active messages can also be accessed in the warning word via serial communication. (See relevant documen-
tation).
Access the status messages Fire Mode via the extended status word.
Message
Fire Mode
Fire Mode
Fire M was Active
Fire M Limits Exceeded
Table 3.24 Messages in Display
Log
To see an overview of fire mode-related events, view the fire mode-log, LG-1#, Fire mode log, or press [Alarm Log] on the
LCP or via the Alarm Log button on the keypad.
The log includes up to 10 of the latest events. Warranty-affecting alarms have a higher priority than the other 2 types of
events.
The log cannot be reset
Following events are logged:
•
Warranty-affecting alarms (see parameter FB-09 Fire Mode Alarm Handling)
•
Fire mode activated
•
Fire mode deactivated
All other alarms occurring while fire mode is activated are logged as usual.
138
Type Keypad
Status +
Warning +
Warning +
Warning +
03/2016 All rights reserved.
Messages in
Warning word 2
display
+
+ + (bit 3)
+
Ext. status word 2
+ (bit 25)
DET-620D