Lika EM58 PA Series, Руководство пользователя

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EM58 PA
4.13 Preset
Preset input is active only when the
Enable preset
software function in the
ENCODER CONFIGURATION
box is enabled (see on page 37); otherwise the
hardware function is disabled. It is the same as the Activate preset button (see
on page 36). This input is intended to set the preset value (the preset value is set
next to the
Preset
parameter in the
PRESET
box, see on page 34) for the current
position of the encoder. For detailed information on the preset function refer to
the “5.3.2 PRESET box” section on page 34.
The output information can be forced through a command sent to the PRESET
input by a PLC or via a button. After this, the position output by the encoder in
that point will be the one set (and then loaded to the encoder) next to the
Preset
parameter in the
PRESET
box, see on page 34. By default the preset
value is 0. Connect the Preset input to 0Vdc if not used. To set the preset,
connect the Preset input to +Vdc for 100 µs at least, then discVdc.
Normally the voltage must be 0Vdc. We suggest performing the preset setting
when the encoder is in stop.
WARNING
Check the
Preset
parameter and execute the preset function (either by means of
the
Preset
input or by pressing the
Activate preset
button) every time you
change the value next to the
Encoder HW counts
parameter available when
the
Programming mode: Prog (single ramp)
or
Programming mode: Prog
(cyclic ramp)
options are set; or after having changed the counting direction
(through the Counting direction input or by setting the Positive counting
direction parameter).
4.14 Recommended current analogue output circuit
MAN EM58 PA E 1.1 Electrical connection 25 of 60