Main Menu - Application Functions 2 - Group 24 - Trane TR200 Programming Manual

Main Menu - Application Functions 2 - Group 24

24-0*
NOTE
Please note the adjustable frequency drive is only one component of the TR200 system. Correct function of fire mode
depends on the correct design and selection of system components. Ventilation systems working in life safety appli-
cations have to be approved by the local fire authorities.
to fire mode operation may cause overpressure and result in damage to TR200 system and components,
including dampers and air ducts. The adjustable frequency drive itself may be damaged and it may cause
damage or fire. Trane accepts no responsibility for errors, malfunctions, personal injury or any damage
to the adjustable frequency drive itself or components herein, TR200 systems and components herein or
other property when the adjustable frequency drive has been programmed for fire mode. In no event
shall Trane 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 adjustable frequency drive 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
adjustable frequency drive'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 5-1* Digital Inputs.
Messages in display
When fire mode is activated, the display will show a status message "Fire Mode" and a warning "Fire Mode".
Once fire mode is again deactivated, the status messages will disappear and the warning will be replaced by
the warning "Fire M Was Active". This message can only be reset by power-cycling the adjustable frequency
drive supply. If, while the adjustable frequency drive is active in fire mode, a warranty-affecting alarm (see par.
24-09 Fire Mode Alarm Handling) should occur, the display will show 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 group5-3* and parameter group 5-4*.
"Fire M was Active" messages can also be accessed in the warning word via serial communication. (See relevant
documentation).
The status messages "Fire Mode" can be accessed via the extended status word.
Message
Fire Mode
Fire Mode
Fire M was Active
Fire M Limits Excee-
ded
TR200 Programming Guide
Non-interruption of the adjustable frequency drive due
Type keypad
Status +
Warning +
Warning +
Warning +
Parameter Description
Digital Out/Re- Warning Word
lay 2
+
+ + (bit 3)
+
Ext. Status
Word 2
+ (bit 25)
4-209