
System Components OI: BK MIKRO LIN.B
Page 4 of 30 Rev. 2.02 dated 31.05.2007
2 System Components
2.1 Control unit
The control unit is available in three models preconfigured for different supply voltages.
The relevant version will be marked on the rating plate: 24 VDC, 120 VAC, 230 VAC.
On its front panel, the control unit is fitted with plug-in screw terminals to connect all machine
inputs and outputs, supply voltage, and the scanner.
• The screw terminals have been arranged on two plug-in terminal blocks. These blocks
are keyed so that they cannot be accidentally plugged into the wrong socket.
• When in operation, plastic caps cover the screws in the front. Wires to be connected are
routed from the top or bottom of the unit.
The scanner will be connected via a 6-wire cable to the scanner socket of the control unit.
Fig. 2-1: Control unit – Front view with plug-in connections
Caution
Note:
These plugs may only be inserted or removed when the power supply has been
disconnected.
Unmarked terminals must not be connected.
Caution
Note:
The nominal tightening torque for the clamping screws of the terminal connectors
should be 0,5-0,6 Nm or 4,4-5,3 pound-inches (lbf in).
o.k.
L1 N
AC IN
+
–
24 V DC
Com Start S1 S2 S3Teach
25%
0%
50%
75%
P1
BK MIKRO LIN
k.o.
25%
0%
50%
P2
1
2
Homeok: Obj.
50
100
Terminal block with connected wires
removed from housing
Key-bit
Key-bit
Scanner socket
Screws of the terminal block
coverd by plastic cap
Connected wires
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