Parameter ID Unit De‐
fault
Min Max Description
Force Cell Fault
(keypad only)
Function Allows a selected cell to be manually faulted. Typically
used to test cell bypass.
Reset bypassed
cells
(keypad only)
2640 Function Reset bypassed cells when the drive is in an idle state. Use
the reset function only after verifying that the problems
with the faulted cell(s) have been resolved.
Neutral connection 2630 T2 Set the pole inversion type based on the cell neutral con‐
nection point. Select the cell terminal, T1 or T2, which
forms the neutral connection. This selection depends on
the terminal of cells A1, B1, and C1 that is used to form
the drive start-point neutral.
This feature will be
released in a later
software version
Sync Check Enable
2631 o Enable software sync check of medium voltage and pre‐
charge voltage for Precharge Type 6.
This feature will be
released in a later
software version
Sync Check Angle
2632 deg 0 0 15 Description: Sets the maximum phase angle permissible
between medium voltage and precharge voltage for Pre‐
charge Type 6.
This feature will be
released in a later
software version
Prechrg M4 Holdo
time
2633 sec 0 0 10 Time delay for closing M4 to stabilize current. Maintains
the M3 contactor until timeout, then allows the state
machine to continue by closing M4.
This feature will be
released in a later
software version
Precharge voltage
2634 % 90 80 95 Sets the voltage level to stop M2 resonance and advance
the precharge state machine.
Note: The default parameter value is 90%. Previously, the
voltage level was xed for Type 1 and Type 2 and hard-
coded to 95%. These levels may require adjustment. The
remaining type levels remain unchanged and do not re‐
quire adjustment.
This feature will be
released in a later
software version
Precharge enable*
2635 o Enable input transformer pre-charge for the protection of
cells from in-rush current:
• Type 1 HV - 3CB
• Type 2 HV - 2CB
• Type 3 Parallel Drive
• Type 4 Open 1 CB
• Type 5 Open (750 V AP and 750 V AP 4Q)
• Type 6 Closed (750 V AP and 750 V AP 4Q)
Note: All types are resonant with the exception of Type 3.
This feature will be
released in a later
software version
Precharge delay
time
2636 sec 1.0 0.0 10.0 Time delay between end of pre-charge and start of cell
diagnostics. For HV and 6SR4_0 cells, although pre-
charge is not used, it replaces the nominal one second
delay in cell diagnostics.
Parameter Assignment/Addressing
6.5 Options for Drive Menu (2) - rst part
NXGPro+ Control Manual
108 Operating Manual, A5E50491925A
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