Fagor CNC8 070 - 6002 The PLC Program Is Not Running; 6000 Feedback Alarm; 6001 Tendency Test Alarm Activated; Errors 6000-6999

CNC8070
R
EF
. 0402
E
RROR SOLUTIONS
Page 99 of 128
Errors 6000-6999
ERRORS 6000-6999
6000 'Feedback alarm'
DETECTION During execution.
CAUSE Feedback error on analog axes. It is enabled by means of machine parameter
FBACKAL.
DIFFERENTIAL TTL:
• One or more cables broken (A, B signals or their inverted signals).
• Feedback input disconnected at the counter.
DIFFERENTIAL SINUSOIDAL:
• One or more cables broken (A, B signals or their inverted signals).
• Feedback input disconnected at the counter.
• Input signal amplitude above 1.45 Vpp (approx.)
• Input signal amplitude under 0.4 Vpp (approx.)
• Too much phase shift between A and B signals (in quadrature, in theory)
For non-differential signals, the feedback alarm (FBACKAL) must be disabled
because it cannot be determined for sure.
SOLUTION Contact our technical service department.
6001 'Tendency test alarm activated'
DETECTION When an axis runs away and the tendency test monitoring is activated.
CAUSE Axis runaway. Positive feedback on the axis for a longer period of time than what is
set by parameter ESTDELAY.
SOLUTION Check the sign of the velocity command and of the feedback. Set parameters
ESTDELAY, command sign AXISCHG and feedback LOOPCHG.
6002 'The PLC program is not running'
DETECTION Continuous monitoring of PLC status.
CAUSE The PLC program is not running.
• Installation of a new software version.
• The PLC has been stopped and has not been resumed.
SOLUTION Set the PLC program running. Compile the PLC program if necessary.
6003 'External emergency activated'
DETECTION Continuous monitoring from each interpolation cycle.
CAUSE The PLC mark _EMERGEN has been set to zero.
SOLUTION Check the logic of the _EMERGEN signal in the PLC program.
6004 'Error when initializing the BUS CAN'
CAUSE The drive reports an error.
SOLUTION Analyze error codes. Refer to the drive manual.
6005 'Error when selecting the work frequency of the BUS CAN'
DETECTION During system startup.
CAUSE One or several nodes are not tuned in to the frequency set by parameter.
SOLUTION Check the following:
• The CAN cable distance matches the frequency parameter.
• See if all the modules are recognized in diagnosis mode.
Contact our technical service department.