When the drive is subsequently powered up a Stored HF trip is initiated where the sub-trip number is the number of the HF trip that last occurred. This trip will occur at every power-

up until it is reset. The trip can only be reset by first entering 1299 into Parameter mm.000 (mm.000). If the drive is powered up and a Stored HF trip occurs,

Onboard User Program: Enable (11.047) is reset to zero to prevent the on-board user program from running. This ensures that the user program can be changed or erased in case it

causes an HF trip at every power-up.

Trip descriptions

Trips shown in the table below can be generated either from the drive control system or from the power system. The sub-trip number which is in the form xxyzz is used to identify the

source of the trip. The digits xx are 00 for a trip generated by the control system or the number of a power module if generated by the power system. If the drive is not a multi-power

module drive then xx will always have a value of 1 if the trip is related to the power system. The y digit is used to identify the location of a trip which is generated by a rectifier module

connected to a power module. Where the y digit is relevant it will have a value of 1 or more, otherwise it will be 0. The zz digits give the reason for the trip and are defined in each trip

description.

Over Volts

OI ac

OI Brake

PSU

OHt Inverter

OHt Power

Trips Summary (numerical order)

244

OHt dc bus

Phase Loss

LF Power Comms