Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 863)

Error and System Messages
Section 16
16-43
Message Description
SYSTEM MODULE OVER VOLTAGE The 1394 system module buss voltage exceeds the maximum operating voltage. The DC
power bus is continuously monitored. If it exceeds a preset level (810V DC), a fault is sensed
and the power supply is disabled. There are several possible causes for this error.
· an undersized shunt requirement
·
a blown shunt regulator fuse
·
a malfunctioning shunt regulator transistor
· the power driver board is malfunctioning and incorrectly sensing the bus voltage
·
an incorrectly set CNC acc/dec rate
·
an excessive input line voltage
· the system inertia is too high causing excessive energy to be returned to the power supply
bus
· a vertical axis with insufficient counterbalancing is overdriving the servomotor and causing
excessive energy to be returned to the power supply bus
·
an incorrect power supply is installed in your system. Make sure you are using a CNC power
supply
SYSTEM MODULE PHASE LOSS The 1394 system module has detected a loss of one of the input power phases. The
three--phase input line is monitored and a fault will be issued when a phase loss is detected.
Typical causes include, One, two , or all three input line fuses opened, contactor malfunction, or
incorrect wiring.
SYSTEM MODULE PRE--CHARGE The DC bus voltage did not rise to operating levels (285 V) within .5 sec after 3 phase power
was applied to the system. This can occur if : a short is detected on the DC bus . An axis is
enabled before the pre--charge check is complete, or if torque is commanded before full bus
voltage is present.
SYSTEM MODULE SHUNT TIMEOUT WARNING The shunt resistor has absorbed 80% of the rated regeneration energy produced by the motor.
In general this warning message will not cause any action to be taken by the CNC system,
however the logic program can take action based on this status.
SYSTEM MODULE SHUNT TIMEOUT The shunt resistor has timed out due to an amount of regeneration energy produced by the
motor exceeding the limit of the shunt resistor by more than 5%. You may require a properly
sized shunt, modification of the duty cycle of the application, or the addition of an external shunt
for additional capacity.
SYSTEM MODULE UNDER VOLTAGE The 1394 system module voltage does not meet the minimum operating voltage. The DC power
buss shall activate the under voltage limit when the bus drops to 275 VDC or less. It will clear at
300 Vdc. Typical causes include low voltage on the three phase input.
T
(T) WORD IN CIRCULAR MODE An attempt was made to activate a tool length offset in a block that generates a circular move.
Tool length offsets can be activated only in linear blocks (or in non-motion blocks if AMP is so
configured).
T--WORD NOT ALLOWED WITH M06 NEXT TOOL IN T WORD was selected as the tool--change type in AMP while a T--word is
programmed in an M06 block.
TAN CIRCLE NOT IN 1ST BLOCK When editing a program, an attempt was made to digitize an arc using {CIRCLE TANGNT} as
the first block in the program. To use this digitizing format, the control must first have a tool path
programmed to make the arc tangent.
TEMPLATE PROGRAM NOT FOUND A transfer line quick view item was selected without the correct part program template present in
the protected directory. There are 19 transfer line cycles and there must be part program
templates QV01 thru QV19 present in the protected directory. Refer to your T-LINE-9 Quick
Start guide for details on replacing/restoring these part program templates.
THIRD SPINDLE NOT AVAILABLE AMP configuration error; spindle 3 can be configured only on a 9/290.
THIRD SPINDLE NOT CONFIGURED For spindle 3 to be programmable, it must be configured in AMP; a decode error.
THRDS/IN WORD FORMAT FINER THAN The word format programmed is requesting a finer resolution than the axis word format for the
corresponding axis allows. These word formats are set in AMP.
THREAD FEEDRATE TOO LARGE The lead is too large in threading mode. Program slower spindle speed.