Control Techniques Digitax ST Advanced User's Manual page 138

Parameter
Menu 10
structure
Priority Category
1 Hardware faults
2 Non-resetable trips
3 EEF trip
4 SMARTCARD 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 resetting trips
Unless otherwise stated trips cannot be reset until 1.0s after the trip has been accepted by the drive.
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: OIbr.P, PS, It.br, OV or any HFxx trip.
UV trip
It should be noted that although the UV 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 UV trip:
1. Power down save user parameters are saved when UV trip is activated except when the main high voltage supply is not active (Pr 6.44 = 1).
2. The UV trip is self-resetting when the DC bus voltage rises above the drive restart voltage level. If another trip is active instead of UV 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 UV 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 UV 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.
138
Keypad and
Parameter x.00
display description format
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
UV
www.controltechniques.com
Parameter Advanced parameter
descriptions
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.
SMARTCARD 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.
Serial comms Electronic
Performance
protocol nameplate
Comments
Digitax ST Advanced User Guide
Issue Number: 1