Operating instructions

BK MIKRO 7 with scanner TK7RL – Scanning in both directions OI: BK MIKRO 7

Page 24 of 32 Rev. 2.01 dated 05.02.2007

5.2 Switch mode = monitoring with setting scanning ranges

Requirement: Rotary switches 0 < P1 < 360 and 0 < P2 < 360

Rotary switch P1 and P2 settings will define two scanning ranges.

In this mode of operation, BK MIKRO 7 allows only object monitoring:

Two rotary switches are used to define two scanning ranges which are to be monitored

before each working cycle.

Note:

A Pulse on the "Teach" terminal do not take effect.

5.2.1 Reference procedure

The first "Start" cycle after supply voltage has been applied, finds out the stop position of the

scanner by a so-called reference procedure.

Note:

Carry out reference procedure with "Scanning in both directions".

1. After "Start" pulse the scanner rotates to the first object with selected speed in

preset direction.

2. From there it moves back in opposite direction for the preset value of the selected

direction to the so-called stop position, e.g. P1 means CW rotation.

3. Without stop it travels on at most towards the second value into the reversing point,

when a second object is not found before.

4. After that the scanner will return to its stop position.

Result:

"O.K." Both objects detected Movement as described above.

"K.O." No object detected Rotation towards 360°, back to initial position,

that becomes stop position.

First object detected,

no second object within the

preset range

Movement as described above, stop position is

determined by the detected first object.

Reference procedure is necessary:

• after interruption of power supply

• after changing the switch settings P1 or P2

• after changing the "Scanner" switch from "TK7A" back to "TK7RL"

Note:

Only after a reference procedure the scanner persists in its stop position while