Invertek Drives OPTIDRIVE E3 User Manual page 29

The Fire Mode function is designed to ensure continuous operation of the drive in emergency conditions until the drive is no longer
capable of sustaining operation. The Fire Mode input may be a normally open (Close to Activate Fire Mode) or Normally Closed
(Open to Activate Fire Mode) according to the setting of P-30 Index 2. In addition, the input may be momentary or maintained type,
selected by P-30 Index 3.
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.
The fire mode function is enabled when P-15 = 15, 16, 17 or 18, with Digital Input 3 assigned to activate fire mode.
Fire Mode disables the following protection features in the drive:
 O -t Heat-sink Over-Temperature
 U -t Drive Under Temperature
 T h-FLt Faulty Thermistor on Heat-sink
 E -trip External Trip
 4 -20 F 4-20mA fault
 P h-Ib Phase Imbalance
 P -Loss Input Phase Loss Trip
 S C-trp Communications Loss Trip
 I t-trp Accumulated overload Trip
 O ut-F Drive output fault, Output stage trip
The following faults will result in a drive trip, auto reset and restart:
 O -Volt Over Voltage on DC Bus
 U -Volt Under Voltage on DC Bus
 h O-I Fast Over-current Trip
 O -I Instantaneous over current on drive output
Switching Frequency Selection (relevant parameters)
Par. Description
P-17 Maximum Effective Switching Frequency
Sets maximum effective switching frequency of the drive. If "rEd" is displayed when the parameter is viewed, the switching frequency has
been reduced to the level in P00-32 due to excessive drive heatsink temperature.
Skip Frequency (relevant parameters)
Par. Description
P-26 Skip Frequency Hysteresis Band
P-27 Skip Frequency Centre Point
The Skip Frequency function is used to avoid the Optidrive operating at a certain output frequency, for example at a frequency which
causes mechanical resonance in a particular machine. Parameter P-27 defines the centre point of the skip frequency band, and is used in
conjunction with P-26. The Optidrive output frequency will ramp through the defined band at the rates set in P-03 and P-04 respectively,
and will not hold any output frequency within the defined band. If the frequency reference applied to the drive is within the band, the
Optidrive output frequency will remain at the upper or lower limit of the band.
V/F Characteristic Adjustment (relevant parameters)
Par. Description
P-28 V/F Characteristic Adjustment Voltage
P-29 V/F Characteristic Adjustment Voltage
This parameter in conjunction with P-28 sets a frequency point at which the voltage set in P-29 is applied to the motor. Care must be taken
to avoid overheating and damaging the motor when using this feature.
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Minimum Maximum
4
Minimum Maximum
0.0
0.0
Minimum Maximum
0
0.0
Version 1.00 | Optidrive ODE-3 IP66 Outdoor Rated User Guide | 29
Default Units
32 8 kHz
Default Units
P-01 0.0 Hz / RPM
P-01 0.0 Hz / RPM
Default Units
P-07 0
P-09 0.0 Hz
6
V