12.4 Common Specifications
12-17
Chapter 12 SPECIFICATIONS
Table 12.4-7
Item Explanation Remarks
Mock alarm Mock alarm can be generated with keypad operations.
err
PID feedback wire break
Stop the inverter output detecting a breaking when the input current is allocated to the PID control
feedback. (Select valid/invalid.)
cof
Alarm relay output
• The relay signal is output when the inverter stops upon an alarm.
•
key or digital input signal RST is used to reset the alarm stop state.
Light alarm (warning)
The "light-alarm" display is indicated when alarm or warning matters set as minor troubles occur.
The operation is continued.
Light alarm object:
Heat sink overheat (
0h1
), External alarm (
0h2
), Inverter internal overheat (
0h3
), Braking resistor
overheat (
dbh
), Overload of motor 1 through 4 (
0l1
to
0l4
), Option communications error
(
er4
), Option error (
er5
), RS-485 communications error (COM port 1) (
er8
), RS-485
communications error (COM port 2) (
erp
), Speed mismatch or excessive speed deviation (
ere
),
Excessive position deviation (
ero
)*10, PID feedback wire break (
cof
), DC fan locked (
fal
),
Motor overload early warning (
0l
), Heat sink overheat early warning (
0h
), Lifetime alarm (
lif
),
Reference command loss detected (
ref
), PID alarm (
pid
), Low torque output (
uTl
), PTC
thermistor activated (
pTc
), Inverter life (cumulative run time) (
rTe
), Inverter life (number of
startups) (
cnT
)
l-al
Stall prevention
When the output current exceeds the current limiter level during acceleration/deceleration or
constant speed running, this function decreases the output frequency to avoid an overcurrent trip.
Retry
When the motor is tripped and stopped, this function automatically resets the tripping state and
restarts operation. (You can specify the number of retries and the latency between stop and reset.)
Surge protection
The inverter is protected against surge voltage intruding between the main circuit power line and
ground.
Command loss detection
Upon detecting a loss of a frequency command (because of a broken wire, etc.), this function
issues an alarm and continues the inverter operation at the preset reference frequency (specified
as a ratio to the frequency just before the detection).
Protection
Momentary power failure
protection
• A protective function (inverter stoppage) is activated upon a momentary power failure for 15 ms
or longer.
• If restart upon momentary power failure is selected, this function invokes a restart process when
power has been restored within a predetermined period (allowable momentary power failure
time).
Installation location
• Shall be free from corrosive gases, flammable gases, oil mist, dusts, and direct sunlight.
(Pollution degree 2 (IEC60664-1)).
• Indoor use only.
Surrounding temperature -10 to +50ºC (-10 to +40ºC when installed side-by-side without clearance (22 kW or below))
Relative humidity 5 to 95% RH (without condensation)
Altitude Lower than 1,000 m
Vibration
200 V 55 kW, 400 V 75 kW or below
3 mm: 2 to less than 9 Hz, 9.8m/s
2
: 9 to less than 20 Hz
2 m/s
2
: 20 to less than 55 Hz, 1m/s
2
: 55 to less than 200 Hz
200V 75 kW, 400 V 90 kW or above
3 mm: 2 to less than 9 Hz
2 m/s
2
: 9 to less than 55 Hz, 1 m/s
2
: 55 to less than 200 Hz
Storage temperature -25 to +70ºC
Environment
Storage humidity 5 to 95% RH (without condensation)
*10 Available in inverters having a ROM version 3000 or later.
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