EP Equipment 508000003143, Operation Manual

Page: 89 / 91

82
Error Message
Possible cause Fault elimination
Error
Error text
239
WAITING
FOR TRAC
At key-on the eps-ac0 needs an assent from
the traction controller to close the safety
contacts and to turn onto operational mode.
Until this assent is not relieved, this warning
occurs. The steer is not activated yet and the
safety relays remain open when this warning
is present.
——
241
ENCODER
ERROR
It occurs when ENCODER CONTROL is set
ON and the real frequency does not pursuit
the commanded frequency
This condition is several times due to
either, a mismatching between the
Encoder resolution used in the SW
and the real encoder resolution, or a
wrong connection between the two
encoder channels. In this latest case
exchange in between the two encoder
channels.
242
Q LINE
SENSOR
KO
This alarm occurs when the mean voltage on
the Quadrature line of the stepper motor
(connection CNA#8) is not null: the voltage on
every stepper motor line is a sine wave with
null mean voltage.
Check the continuity of the stepper
motor connections. In particular the
resistance between CNA#8 and the
minus battery (with the stepper motor
at rest) is expected being very low
(close to 30 ohms).
243
D LINE
SENSOR
KO
This alarm occurs when the mean voltage on
the Direct line of the stepper motor
(connection CNA#9) is not null: the voltage on
every stepper motor line is a sine wave with
null mean voltage.
Check the continuity of the stepper
motor connections. In particular the
resistance between CNA#9 and the
minus battery (with the stepper motor
at rest) is expected being very low
(close to 30 ohms).
245
DATA
ACQUISITI
ON
This alarm occurs when the acquiring the
motor resistance or when adjusting the
parameters to compensate for the gain of the
current amplifiers (maximum current factory
adjusted).
Recycle the key.