ETS-Lindgren 2090 Controller User Manual
Page 159
Model 2090 Multi-Device Controller
The following table gives typical causes for the recoverable
errors:
NVM Initialization Error
This error indicates that the Model 2090’s parameter
settings were lost and restored to factory defaults. This
usually indicates that the NVM backup batteries are
ead and should be replaced. S
E001
ee the procedure in the
VRAM Battery Backup” in Appendix B:
Maintenance, for more information.
d
section “N
E002
Motor Not Moving
This error typically indicates that either the device is too
overloaded to operate correctly, or that there is a
echanical or electrical failure in the controlled device.
l 2090, so that although the device is moving, it
lso cause an
E002
even though the device may actually
or any loss or injury due to the use or
misuse of this information.
First, it is important to determine if the device actually
moves when commanded. If the device moves
m
On variable speed devices, it may also indicate that the
factory preset minimum speed is too low for the
operating load (such a case will typically be indicated by
the device stopping just short of the target position and
reporting an
E002
. It’s also possible to have the
minimum speed below the error detection threshold of
he Mode
t
is moving too slow to prevent the error. In some cases,
especially on older devices, it may also be reported after
or in place of an
E005
indicating that the motor is
stopped due a hardware limit.
The devices attached to the Model 2090 use optical
encoders to record the current position of the device and
to verify motion. A failure in the encoder or the
connections between the encoder and motor drive will
a
be moving. The following diagnostic procedure will
greatly aid in identifying the source of the problem:
WARNING: Appropriate care should be taken when
attempting any diagnostic procedure. These devices
may pose electrical and mechanical hazards when in
operation. Tests should only be performed by qualified
personnel. This procedure is provided for informational
purposes only. ETS-Lindgren cannot be held
esponsible f
r
©ETS-Lindgren, April 2006
159
Revision G– P#399199