Name: Emerson unidrive sp
Brand: Emerson
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Menu 10

Unidrive SP Advanced User Guide 203

Issue Number: 10 www.controltechniques.com

Pr 6.49 = 0

These parameters are used to store the module number if the trip has been initiated by the power module hardware (trips numbers 101 to 110, HF30

and HF31). Pr 10.42 is used to store the module number related to the latest trip stored in Pr 10.20, and Pr 10.43 to Pr 10.51 store the module

numbers related to the trips stored in Pr 10.21 to Pr 10.29. If the drive has only one power module and this module is not using the power interface

intended for parallel operation (SP1xxx to SP6xxx) then Pr 10.42 to Pr 10.51 are always zero. If the drive has more than one parallel power module or

is a single module drive using the power interface intended for parallel operation (SPMAxxxx and SPMDxxxx) then the values in Pr 10.42 to Pr 10.51

can be used to identify the power module that initiated the trip. As these parameters are also used to show Hours.Minutes the module number is

shown with 2 decimal places, i.e. module 1 is shown as 0.01, etc.. Pr 10.41 is always zero.

Pr 6.49 = 1

When a trip occurs the reason for the trip is put into the top location in the trip log (Pr 10.20). At the same time either the time from the powered-up

clock (if Pr 6.28 = 0) or from the run time clock (if Pr 6.28 = 1) is put into Trip 0 time (Pr 10.41 and Pr 10.42). The times for earlier trips (Trip 1 to 9) are

moved to the next parameter in the same way that trips move down the trip log. The time for Trips 1 to 9 are stored as the time difference between

when Trip 0 occurred and the relevant trip in hours and minutes. The maximum time difference that can be stored is 600 hours. If this time is

exceeded the value stored is 600.00.

If the powered-up clock is used as the source for this function all the times in the log are reset to zero at power-up because they were related to the

time since the drive was powered-up last time. If the runtime clock is used the times are saved at power-down and then retained when the drive

powers up again. If Pr 6.28, which defines the clock source, is changed by the user the whole trip and trip time logs are cleared. It should be noted

that the powered-up time can be modified by the user at any time. If this is done the values in the trip time log remain unchanged until a trip occurs.

The new values put in the log for earlier trips (Trip 1 to 9) will become the time difference between the value of the power-up clock when the trip

occurred and the value of the powered-up clock when the latest trip occurred. It is possible that this time difference may be negative, in which case

the value will be zero.

10.43 Module number for trip 1, or Trip 1 time

10.44 Module number for trip 2, or Trip 2 time

10.45 Module number for trip 3, or Trip 3 time

10.46 Module number for trip 4, or Trip 4 time

10.47 Module number for trip 5, or Trip 5 time

10.48 Module number for trip 6, or Trip 6 time

10.49 Module number for trip 7, or Trip 7 time

10.50 Module number for trip 8, or Trip 8 time

10.51 Module number for trip 9, or Trip 9 time