Model 2090 Multi-Device Controller
P8
Refers to the motor reverse delay, in seconds. This parameter allows
setting the reverse delay used between direction changes. This is the
period of time for which the motor must remain off before allowing it
to move in the other direction. For split-phase motors, it is critical
that the motor come to a complete stop prior to reversing direction, or
the motor will continue moving in the same direction and cause a
Moving Wrong Direction error (
E004
). For other motors, physical
damage may be caused to the motor or device from reversing the
motor too quickly. This parameter should be used with care. If in
doubt use the factory default setting.
P9
Refers to the primary GPIB address for each device. Valid values are
in the range from 1 to 30 (0 is normally reserved for the controller in
charge; i.e. the computer). Each device must have a unique GPIB
address.
b1
Refers to bit-wise parameter number one. This parameter provides
selective enabling of several customizable parameters. The bits are
displayed in increasing order from right to left. Unless otherwise
indicated, a value of 0 indicates that the option is disabled and a value
of 1 indicates it is enabled. The two bits currently defined for
b1
are:
Bit 0 – Limits STEP controls (INC/DEC) to only allow motion
within the soft limits instead of the hardware limits of
the motor base.
Bit 1 – Provides a quick stop option for the STEP controls
(INC/DEC) on variable speed devices. Enabling this
bit (setting it to 1) will bypass the deceleration ramp on
variable speed motor bases, stopping them as quickly as
possible.
NOTE: This option should be used with
caution, since it is possible to cause damage to the
device or equipment attached to the device.
C
Refers to the encoder calibration parameter. This setting is used to
convert the encoder count values returned from a motor base into the
corresponding centimeter or degree position reading. For towers, the
number represents the number of encoder counts per meter. For
turntables, it represents the number of counts per revolution. Using
this parameter, a variety of standard, retrofit, and custom devices can
be used. The settings for various products are listed below:
Model 2075 Mini-Mast:
1620
All other EMCO 2070 series towers:
2000
Model 2065 LoPro Turntable:
3665
©ETS-Lindgren, April 2006
47
Revision G– P#399199
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