Fuji Electric FRENIC-HVAC User Manual page 48

Item
When the output current exceeds the current limiter level during acceleration/deceleration
Stall prevention or running at constant speed, this function decreases the output frequency to avoid an
overcurrent trip.
When the inverter has stopped because of a trip, this function allows the inverter to
automatically reset itself and restart. (It is possible to specify the number of retries, the
latency between stop and reset, and target protective functions for retries.)
It is also possible to know how many times retry has been attempted so far via the
Retry function communications link.
Target protective functions:
Overcurrent protection (OC1 to OC3), Overvoltage protection (OV1 to OV3), Overheat
protection (OH1, OH3), Inverter overload (OLU), Motor 1 overload (OL1), Motor
overheat (OH4), External alarm (OH2), Undervoltage protection (LV)
Protects the inverter against surge voltages which might appear between one of the power
Surge protection
lines for the main circuit and the ground.
Upon detection of a loss of a frequency command (because of a wire break, etc.), this
Command loss
function issues an alarm and continues the inverter operation at the preset reference
detection
frequency (specified as a ratio to the frequency just before the detection).
If restart after momentary power failure is selected, this function invokes a restart process
Momentary power
when power has been restored within a predetermined period (allowable momentary power
failure protection
failure time).
Shall be free from corrosive gases, flammable gases, oil mist, dusts, and direct sunlight.
Installation location
(Pollution degree 2 (IEC/EN 60664-1)). Indoor use only.
NEMA/UL
TYPE1
Ambient temperature
NEMA/UL
TYPE12
UL open
type
Relative humidity 5 to 95% RH (without condensation)
Altitude Lower than 1,000 m (3300 ft)
230 V class series inverters of 60 HP or below, 460 V ones of 125 HP or below and 575 V
ones of 150 HP or below
3 mm:
10 m/s
230 V class series inverters of 75 HP and 100 HP
3 mm:
9.8 m/s
Vibration
2 m/s
1 m/s
230 V class series inverters of 125 HP, 460 V ones of 150 HP to 1000 HP
575V class series inverters of 200 HP to 300 HP
3 mm:
2 m/s
1 m/s
Storage temperature -25 to +70°C (-13 to 158°F)
Storage humidity 5 to 95% RH (without condensation)
Explanation
-10 to +50°C (14 to 122°F) (+50 to +60°C (122 to 140°F)covered by derating)
-10 to +40°C (14 to 104°F) for inverters mounted closely side by side (230 V
class series of 25 HP or below, 460 V ones of 50 HP or below and 575 V ones
of 50 HP or below)
-10 to +40°C (14 to 104°F) (+40 to +50°C (104 to 122°F) covered by derating)
-10 to +30°C (14 to 86°F) for inverters mounted closely side by side (230 V
class series of 25 HP or below, 460 V ones of 50 HP or below and 575 V ones
of 50 HP or below)
-10 to +50°C (14 to 122°F)
2 to less than 9 Hz
2
: 9 to less than 200 Hz
2 to less than 9 Hz
2
: 9 to less than 20 Hz
2
: 20 to less than 55 Hz
2
: 55 to less than 200 Hz
2 to less than 9 Hz
2
: 9 to less than 55 Hz
2
: 55 to less than 200 Hz
2-15
2.2 Common Specifications
Remarks