Vacon NX ACTIVE FRONT END II, Applications Manual

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56 • Vacon arfiff05 Standard AFE-II
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
7.6 Drive control
P2.6.1 AFE Options 1 ID1463
This packed bit word is made for enabling/disabling different control options for
regeneration control:
B0 = Disable DCV reduction with reactive reference generation with high line voltage.
B1 = Disable LCL reactive power compensation.
B5 = Disable all harmonic elimination compensation
This is active by default. When activated, this function will reduce little 5
th
and 7
th
harmonics. This will not reduce harmonics of the grid, only own harmonics.
B8 = Enable longer synchronization pulse
This option will make longer synchronization pulse to help synchronization on
weak grid.
B9 = Enable soft synchronization (>= FI9)
This function enables hardware frequency detection on FI9 and bigger units. When
active and there is connection to grid, Supply Frequency is updated by detected
frequency. Recommended to disable when Battery or Photovoltaics system.
B12 = Enable floating DC reference. DC-link voltage will follow line voltage.
While run state drive can detect the Supply Voltage, if supply voltage changes also
internal DC Reference is changed so that DC Voltage is:
𝐷𝐶 𝑉𝑜𝑙𝑡𝑎𝑔𝑒 = 𝑀𝑒𝑎𝑠𝑢𝑟𝑒𝑑 𝑆𝑢𝑝𝑝𝑙𝑦 𝑉𝑜𝑙𝑡𝑎𝑔𝑒 ∗ 1,35 ∗ 𝐷𝐶 𝑅𝑒𝑓𝑒𝑟𝑒𝑛𝑐𝑒
B13 = Enable use of D7 board for start synchronization.
When OPT-D7 board is installed this bit will activate synchronization by using
voltage angle and frequency information from D7 board. Note that phase order
needs to be same in both OPT-D7 and input phases. It is also recommended to
keep frequency on positive side. Note that Frequency of D7 board can be same as a
Supply Frequency but phase order can be still wrong,
P2.6.2 AFE Options 2
This packed bit word is made for enabling/disabling different control options for the
regeneration control.
B00 = Reserved
P2.6.3 Control Options ID1798
B00 = +1 = Enable MCB Close (DI and FB), will also open MCB, without need of discharge
DC link.
B10 = +1024 = Disable internal F80 DC Charge fault operation.