Power Module Trips; Braking Igbt Control; Uu Trip - Emerson unidrive sp User Manual

Parameter Keypad and
Menu 10
structure display
Trips can be grouped into the following categories. It should be noted that a trip can only occur when the drive is not tripped, or is already tripped but
with a trip with a lower priority number.
Priority Category
1 Hardware faults
2 Non-resetable trips
3 EEF trip
4 SMART card trips
4 Encoder power supply trips
Normal trips with extended
5
reset
5 Normal trips
5 Non-important trips
5 Phase loss
Drive over-heat based on
5
thermal model
6 Self reseting trips
Unless otherwise stated trips cannot be reset until 1.0s after the trip has been accepted by the drive.

Power module trips

Trips 101 to 110 are power module trips that are initiated by the drive power electronics module, or modules for a multi-module parallel drive. The trip
identifier for each of these trips is in the form "xxxx.P". If the drive is a single module drive, and does not use the power interface intended for parallel
operation, (SP4xxx to SP6xxx only) OIdC.P, Oht4.P and Unid.P power module trip are possible. When the trip string is displayed the trip source
module number is not displayed and the module number stored in the "module number and trip time log" is zero. If the drive is a multi-module parallel
drive or a single module drive using the power interface intended for parallel operation (SPMAxxxx and SPMDxxxx) all the power module trips are
possible, the trip source module is displayed with the trip string and the module number is stored in the log. A PH.P trip is initiated if some, but not all
parallel modules detect mains loss via their input stage to ensure that the input stages of the remaining modules are not overloaded. If mains loss is
detected by all modules then the normal mains loss system based on DC bus monitoring is used. A PH.P trip occurs if any modules detect phase loss
via their input stage.The normal phase loss system which detects phase loss from DC bus voltage ripple cannot be used in case different phases
have been lost by different modules or if the system is a 12 pulse or higher system.

Braking IGBT control

The braking IGBT continues to operate even when the drive is not enabled (except if the active supply is a low voltage supply, see Pr 6.44), but is only
disabled if any of the following trips occurs or would occur if another trip had not already become active: OI.br, PS, It.br or OV or any HFxx trip.

UU trip

It should be noted that although the UU trip operates in a similar way to all other trips, all drive functions can still operate, but the drive cannot be
enabled. The following differences apply to the UU trip:
1. Power down save user parameters are saved when UU trip is activated except when the main high voltage supply is not active (Pr 6.44 = 1).
2. The UU trip is self-resetting when the DC bus voltage rises above the drive restart voltage level. If another trip is active instead of UU at this point,
the trip is not reset.
3. The drive can change between using the main high voltage supply and low voltage battery supply only when the drive is in the under voltage
condition (Pr 10.16 = 1). The UU trip can only be seen as active if another trip is not active in the under voltage condition..
4. When the drive is first powered up a UU trip is initiated if the supply voltage is below the restart voltage level and another trip is not active. This
does not cause save power down save parameters to be saved at this point.
196
Parameter Parameter Advanced parameter
x.00 description format descriptions
Trips
HF01 to HF16
HF17 to HF32, SL1.HF, SL2.HF,
SL3.HF
EEF
C.Boot, C.Busy, C.Chg, C.Optn,
C.RdO, C.Err, C.dat, C.FULL,
C.Acc, C.rtg, C.Typ, C.cpr,
C.Prod
PS.24V, Enc1
OI.AC, OI.br, OIAC.P, OIbr.P,
OidC.P
All other trips not included in this
table
Old1, cL2, cL3, SCL
PH
O.ht3
UU
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Serial comms
Macros
protocol
Comments
These indicate serious internal problems and cannot be reset. The
drive is inactive after one of these trips and the display shows
HFxx.
Cannot be reset.
Cannot be reset unless a code to load defaults is first entered in
Pr x.00 or Pr 11.43.
SMART card trips have priority 5 during power up.
These trips can only override the following priority 5 trips: Enc2 -
Enc8 or Enc11 - En17
Can be reset after 10.0s
If bit 0 of Pr 10.37 is 1 the drive will stop before tripping.
The drive attempts to stop before tripping.
The drive attempts to stop before tripping, but if it does not stop
within 10s the drive will automatically trip.
Under voltage trip cannot be reset by the user, but is automatically
reset by the drive when the supply voltage is with specification.
Unidrive SP Advanced User Guide
Electronic
Performance RFC mode
nameplate
Issue Number: 10