Specifications

21
X103
X102
Condition
Relay in pulsed
mode
Relay in
continuous mode
Analog output
Constant surface cutting speed CSS
(only in turning applications)
CSS provides spindle speed control as the
diameter of the workpiece changes. A
speed command signal is sent to the
inverter of the spindle motor via the analog
interface (DAC 0 V to 10 V) of the IOB 49.
The maximum and minimum permissible
spindle speeds can be specifi ed. In
addition, a maximum of three operating
gears can be taken into account. The
200S/300S recognize the current gear
selection by means of the switching inputs
of the IOB 49. CSS control can also be
started remotely (via an input to the CSS
board) with an external switch.
Controlling the spindle speed
(only in milling applications)
With the analog outputs, the speed of the
spindle on milling machines can be
controlled in an open controlled loop. A
spindle speed can be assigned to each tool
defi ned in the tool table. The speed can be
manually adapted during machining.
Switching outputs
The IOB 49 features nine fl oating relay
outputs.
Readiness
The readiness output is at LOW level if the
200S/300S cannot operate the IOB (e.g.
not switched on, cable disconnected).
Switching functions (milling mode)
One or more switching ranges or switching
points can be defi ned for an axis. Switch-
off ranges lie symmetrically to the 0
display value. If switching points are
used, the relay activates when the position
display reaches a specifi c value. The
direction function switches when the
algebraic sign is changed.
You can set whether
the switching function should apply to •
the actual value or distance-to-go mode
the relay will open or close when the •
condition is met
or the relay remains activated as •
long as the switching condition is met
(continuous mode) or for a specifi ed
duration (pulsed mode).
Switch-off range (e.g.)
Switching point (e.g.)
Direction (e.g.)