Sanken SVCO6, Инструкция по эксплуатации, Страница: 177 / 326

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7
7-3 Description of Functions
Code No. Function Name Data Content
Setting
Resolution
Factory
Presets
F1707 Open phase detection
function
0: ―input open phase detection‖ disabled,
―output open phase detection‖ disabled
1: ―input open phase detection‖ enabled,
―output open phase detection‖ disabled
2: ―input open phase detection‖ disabled,
―output open phase detection‖ enabled
3. ―input open phase detection‖ enabled,
―output open phase detection‖ enabled
1 3
●
When an input open phase is detected, the alarm display is
“ ”
.
●
When an output open phase is detected, the alarm display is
“ ”
.
Note 1: When leaving the factory, both detection functions of input & output open phase are enabled. However, please
disable these functions with consideration of the errors caused by peripherals and interference. Furthermore, in
order to decrease the false detection ratio of input open phase, the detection function should be carried out
according to the load ratio during normal running with stable load.
F1708 Overvoltage stalling prevention function
The function of overvoltage stalling prevention is selected to control the deceleration slope, therefore prevent the
overvoltage trip in regeneration caused by sudden deceleration of the motor and other reasons.
Code No. Function Name Data Content
Setting
Resolution
Factory
Presets
F1708 Overvoltage stalling
prevention function
0: without overvoltage stalling prevention
1: with overvoltage stalling prevention
1 1
Note 1: When this function is set with the overvoltage stalling prevention disabled, it is effective when the deceleration is
finished within the deceleration time. However, since the DC voltage of the inverter will rise, enough discharging
units must be equipped .
Reference parameter F1115 (Duty cycle of brake resistor)
F1709 Feedback signal disconnecting detection time
Set the detection time when the PID control feedback signal or PG feedback signal are disconnected.
Code No. Function Name Data Content
Setting
Resolution
Factory Presets
F1709 Feedback signal
disconnecting detection
time
0: Only warning
0.01
-
119.9s
120: Without disconnecting detection
0.01s 5
●
Though F1709=0 is used to detect the disconnection, there is only warning but without stop alarm.
●
Use F1709=120, never detect the disconnection.
F1710 Carrier frequency variable by lowering temperature
The function to change carrier frequency automatically according to the radiator fin temperature of the inverter.
Code No. Function Name Data Content
Setting
Resolution
Factory Presets
F1710 Carrier frequency variable by
lowering temperature
0: disabled
1: enabled
1 0
●
In case of F1710=1, in order to prevent power off caused by overheating, the carrier frequency will be changed
automatically.
●
The values of F1710 are available only when F1320=1 (mode A). When F1320=2 (mode B), the carrier frequency
will be changed automatically without referring to values of F1710.