Parameter 01.054 Fire Mode Activate
Short description Set to 1 to activate fire mode
Mode Open‑Loop
Minimum 0 Maximum 1
Default 0 Units
Type 1 Bit Volatile Update Rate Background read
Display Format Standard Decimal Places 0
Coding RO, NC
Fire Mode Activate (01.054) cannot be written directly, but it can be controlled from a digital input. This prevents fire mode from being enabled from the
keypad, comms or an option module.
Fire mode is intended for purging air from a ventilation system in the event of a fire. All trips are either disabled or are automatically reset after 1s. The use
of fire mode can result in damage to the drive, and so if fire mode is enabled and any trip is initiated an indication that cannot be reset by the user is stored
in Potential Drive Damage Conditions (10.106). For Open-loop, RFC-A or RFC-S modes fire mode is activated and if Fire Mode Reference (01.053) has a
non-zero value and Fire Mode Activate (01.054) = 1. When fire mode is activated normal drive operation is overridden as follows.
1. Pre-ramp Reference (01.003) is forced to the value in Fire Mode Reference (01.053).
2. The Final drive enable is forced to be active provided the safe torque off hardware input will allow the drive to be enabled. The Final drive run is
forced to be active.
3. Forward Limit Switch (06.035) and Reverse Limit Switch (06.036) are disabled.
4. The hand/off/auto system is disabled. If this system is in the hand state when fire mode is activated it will be forced to the off state, so that hand
state is not active when fire mode is de-activated.
5. Keypad control mode is disabled.
6. All latched states in the sequencer (Menu 6) are reset.
For Regen mode fire mode is activated if Fire Mode Activate (01.054) = 1. When fire mode is activated the Final drive enable is forced to be active provided
the safe torque off hardware input will allow the drive to be enabled.
If the drive is in the tripped state when fire mode is activated the trip is reset and then only the trips listed in the table below can be initiated whilst fire mode
is active. If any of the trips shown as resettable occur, the drive will attempt to automatically reset the trip after 1s.
Trip number Trip Resettable
2 Over Volts Yes
3 OI ac Yes
4 OI Brake Yes
5 PSU Yes
9 PSU 24V Yes
21 OHt Inverter Yes
31 EEPROM Fail No
36 User Save No
37 Power Down Save No
109 OI dc Yes
200 Slot1 HF No
205 Slot2 HF No
210 Slot3 HF No
217-249 No
250 Slot4 HF No
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