Baumer N 153 - Manual (Page 3)

N 153
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1.2. SPA description and explanation
Mounting the spindle position display (SPA) is by docking hollow shaft onto spindle shaft (max.14 mm in diame-
ter).The hollow shaft is fixed to the spindle shaft by hexagon screw and secured by power grip.
This way, the SPA is mounted in an overhung position and secured against torsion by torque support provided
at rear of the housing. The SPA features an absolute multiturn sensing system capable of detecting the position
after several spindle turns even in powerless state. Position data will be retained even in case of power failure
(min. 10 years).
The current position value is indicated in the two-line backlit LCD display (2x 5 digits, numeric), optionally to-
gether with the target transmitted by the control (master). Two arrows indicate the editing engineer the direction
the spindle must be turned to for aligning actual value with target. As soon as actual value is in alignment with
target and within the permitted tolerances, the target will disappear. By corresponding master parameterization
the display can be turned by 180° enabling vertical respectively horizontal installation. SPAs are networked by
M8 connector, power supply is by the same cable directly by master. SPA parameterization by master only.
indication „target“
arrows indicating the required direction for target/actual value alignment
indication „actual value“
1.3. Betriebsarten
Two operating modes are available to define the order of SPA alignment within the network.
Direct mode: The master will enable the SPAs in successive order for the positioning operation.
Interactive mode: The master will enable all SPAs respectively all SPAs in one group. The processing order
in the alignment operation must be defined by the operator.
a) Direct mode:
In „direct mode“ the master will transmit the motor start signal (command „D“) to a specific SPA which is first to
be aligned by power tool. The red status LED is flashing fast (at approx. 2 Hz) while the relevant IR positioning
data are being transmitted to the power tool. After the positioning operation the LED switches to green continu-
ous what is recognized by the master when reading out the status flag (command „CX“ or „F“). Now the master
will transmit the motor start signal to the next SPA. This procedure will repeat until all SPAs have been aligned.
The order allows for individual alteration upon every profile change.
b) Interactive mode:
In „interactive mode“, the operator defines the order of SPA alignment.
Instead of transmitting the motor start signal (command „D“) to a specific SPA, the master will address all SPAs
in one group by broadcast command (address 99). The red status LEDs of all addressed SPAs is flashing slow-
ly (at approx. 1 Hz). Now the SPAs are enabled for alignment but so far no positioning data have been transmit-
ted to the power tool via the IR interface. The operator chooses one of the slowly flashing SPAs and pushes
one of its buttons. The red LED is now flashing rapidly (at approx 2 Hz) while this SPA is transmitting the IR
data. Once the aligning operation has been completed, the LED switches to green continuous. The operator
turns to the next SPA with a slowly flashing LED and will repeat the procedure until all SPAs have been aligned.
An already activated SPA (LED flashing fast) is set back to stand-by when pressing the button anew. The LED
is flashing slowly again and IR data transmission is aborted.
In group alignment operations, both modes can be combined. Example:
Firstly all Multicon AccuDrive devices are enabled for positioning by broadcast command, the order of alignment
is up to the operator .As soon as each SPA of group 1 is „in position“, the master will proceed with the next
group in direct mode.