Troubleshooting - DRUM:Timeout during active braking (error number 6006)

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DRUM:Timeout during active braking (error number 6006)

Applies to

Platesetter 3244
Trendsetter 3244

Description

A timeout may occur during active braking if the firmware had control of the drum drive and tried to stop it by actively driving a torque in the braking direction.

If it drops out the main drive amp should show an error on one of the LEDs. See http://intranet.creo.com/support/html/platesetter_3244/mda.htm

http://intranet.creo.com/support/html/troubleshooting/mda_fault.htm

Solutions

B+ Voltage too high

The most likely fault will cause

the B+ Voltage LED to be lit
the general Status led to be off

(see the left hand side of http://intranet.creo.com/support/html/platesetter_3244/mda.htm)

If the B+ Voltage fault does occur then it is possible that the big dump resistor attached to J9 is not properly connected. If this is happening on machines that have a very high drum speed, then the value of this resistor may be too large. Please report any B+ Voltage problems to Carl Van Maarseveen (3470).

A drum init (if there is no plate half on the drum) should clear the problem.

Submitted by	Carl Van Maarseveen
Date	June 4, 1998

Dip in voltage supplied to J1

Timeouts during active braking can also be caused by primary power problems, in the form of a dip in the voltage at the primary supply power connector J1. Perform the following tests:

1) Set the drum vacc value to 25, do a few drum spin 185 and drum stop commands. If the error does not occur often then power is probably not the cause.

2) Attach a ACVolt meter to J1, pin3 & 4.

3) Spin the drum at 185 rpm and watch the meter (especially the analog scale if you have one). Have some one else issue the drum stop command.

If the voltage drops noticably then there may be:

bad power connection
failing circuit breaker
failing power switch.

Submitted by	Carl Van Maarseveen
Date	June 23, 1998

Firmware Bug in Drum Cal

There seems to be a bug in the drum cal command. The problem is that if the measured value for drum doff is less than the one already set, then the firmware thinks that there is nothing it can do to compensate for the offset. It therefore leaves the old value in place.

If error 06006 occurs check drum doff. If drum doff is not 0 set it to zero. Then do a drum cal, and an nvs save drum.

Also make sure that drum vacc is <15 and drum pacc is <10 (default is normal)

Submitted by	Carl Van Maarseveen
Date	July 28, 1998