GE Fuji Electric MICRO-SAVER AF-300, Руководство для стартапов

Страница: 116 / 127

8-14 8-15
8.5 Protective Functions
Name Description
LED
monitor
displays
Alarm
output
[30A, B, C]
Overcurrent
protection
– Stops the motor to protect the drive from an overcurrent
resulting from overload.
– Stops the motor to protect drive from an overcurrent due to
a short-circuit in the output circuit.
– Stops the motor to protect drive from an overcurrent due to
a ground fault in the output circuit.
During acceleration 0C1 Yes
During deceleration 0C2
During running at
constant speed
0C3
Overvoltage
protection
The drive stops the motor by detecting an overvoltage (400 Vdc
for 230 V series, 800 Vdc for 460 V series) in the intermediate dc
circuit.
This protection is not assured if excess ac line voltage is
accidentally applied.
During acceleration 0U1 Yes
During deceleration 0U2
During running at
constant speed
(Stopped)
0U3
Undervoltage
protection
Stops the motor when the intermediate dc circuit voltage drops below the undervoltage
level (200 Vdc for 230 V series, 400 Vdc for 460 V series).
However, if data “4” or “5” are selected for F14, there is no alarm output even if the
intermediate dc circuit voltage drops.
LU Yes
*
Input phase loss
protection
Detects input phase loss, stopping the motor. L Yes
Output phase
loss protection
Detects output phase loss during starting and running, stopping the drive. 0PL Yes
Overheat
protection
– Stops the motor by detecting excess heat sink temperature in case of cooling fan
failure or overload.
0H1 Yes
– When the built-in or external braking resistor overheats, the drive stops running.
* It is necessary to set the function code corresponding to the resistor used (built-in or
external).
dbH Yes
Overload
protection
Stops the motor if the IGBT internal temperature calculated from the output current and
cooling fan temperature detection is over the preset value.
0LU Yes
Motor pr
otection
Electronic
thermal
overload
relay
In the following cases, the drive stops running the motor to protect the motor in accordance
with the electronic thermal function setting.
0L1 Yes
– Protects general-purpose motors over the entire frequency range.
– Protects drive motors over the entire frequency range.
* The operation level and thermal time constant can be set.
PTC
thermistor
– A PTC thermistor input stops the motor for motor protection.
A PTC thermistor is connected between terminals [C1] and [11], and a 1-k
Ω
external
resistor is connected between terminals [13] and [C1].
0H4 Yes
*
This alarm may not be triggered, depending on the function code data.
StockCheck.com