SODECA VSD/A, Руководство по монтажу и настройке

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6
EN
FIRE MODE
The Fire Mode function is designed to ensure continuous operation of the drive when an external alarm signal is activated
(fire alarm) until the drive is no longer capable of sustaining operation. This input may be linked to a fire control system
to allow maintained operation in emergency conditions, e.g. to clear smoke or maintain air quality within that building.
Fire Mode disables some protection features in the drive (Heat-sink Over-Temperature, 4-20mA fault, Faulty Thermistor
on Heat-sink…).
AP4. FIRE MODE with NO or NC activation signal– Preset speeds
This section explains how to configure the
“
FIRE
”
control mode with a normally open (NO) or a normally closed (NC)
activation signal and two operation speeds; the normal speed and the fire speed which can be adjusted as a preset
speed.
FIRE MODE with NO activation signal
When the free potential contact is open, which enables the Fire Mode, and the drive is receiving the RUN signal, the
drive will work at a preset speed with all the protections enabled. If the fire mode signal is active, that is when the
activation contact changes to closed position, and the drive is receiving the start signal (it can be the a contact of the fire
mode), the drive will work at a preset speed with all the protections disabled. (See Fig.4.)
MODO FUEGO with NC activation signal
When the free potential contact is closed, which enables the Fire Mode, and the drive is receiving the RUN signal, the
drive will work at a preset speed with all the protections enabled. If the fire mode signal is active, that is when the
activation contact changes to open position, and the drive is receiving the start signal (it can be a contact of the fire
mode), the drive will work at a preset speed with all the protections disabled. (See Fig.5.)
4.1 PROGRAMMING
Use the next table to change to, or modify, the Fire mode with normally open activation signal (NO) or with normally
closed activation signal (NC) . The preset speeds can be adjusted to go forwards or reverse.
Table “FIRE MODE with NO contact, Preset Speeds”
Parameter Description Adjustment Units

Maximum Frequency 50.0 Hz

Minimum Frequency 0.0 Hz

Acceleration Ramp Time 20 s

Deceleration Ramp Time 20 s

Motor Rated Current x.x A

Primary Command Source 0

Extended Menu Access code
101

Digital Input Function Select
16

Fire Speed ± xx.x Hz

Normal Speed ± xx.x Hz

Starting Mode


Fire Logic Input
1:


Latch Fire
0:
