Fagor ACSD series, Original Instructions Manual

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ACSD-74/80 Digital Brushless AC S ervo D rive system - Ref.1609
Due to the duty cycle, the Ballast resistor is overloaded.
Resize the Ballast resistor.
Decrease the duty cycle.
Smooth the duty cycle by applying acceleration ramps.
The synchronism message is received erroneously during two consecutive cycles or is
no longer received. If the error comes up only once, it adds 1 unit to the value of the
QV30 variable (distortion on the line).
The synchronism message must be received within a ±10 µs margin of the cycle time
indicated in parameter QP1, when starting up the unit.
This time margin is usually 4 ms. Therefore, if this is received out of this margin twice
in a row, the drive warns about this error. If it only occurs one, it adds 1 unit to the value
of the QV30 variable.
The handshake bit, included in the master's control word and in the drive's status word,
does not follow the indicated sequence.
Parameter incompatibility.
Example
Let us assume a drive that controls a 4000 rpm motor with its parameters set (e.g.:
speed limit SP10 = 4400). If now, a 2000 rpm motor is connected, the speed limit will
be beyond the value allowed for this new motor. The RAM memory will then be read-
justed and error E.502 will be issued indicating the wrong parameters in the QV22 vari-
able. If the unit is reset without having saved the parameters, the error will come up
again. The error will disappear when the parameters (readjusted in RAM memory by
the drive) are saved into E²PROM memory using the GC1 command.
Contact Fagor Automation.
E.314 Ballast circuit overload
E.403 Synchronism message missing
E.412 Synchronism message oscillation
E.413 Wrong handshake
E.502 Incompatible parameters
E.506 Motor table missing