Rockwell Automation 45MLA Controller Installation Instructions - Manual (Page 3)

3
Input Logic
The controller inputs are capable of accepting either NPN or PNP
outputs. The default setting is configured as a sinking input to
connect to a PNP sourcing output. In order to connect the input
to an NPN output the jumpers In1 and In2, on the main PCB, must
be adjusted as described in Table 3 and Figure 2.
Table 3: Input Logic as Described by Jumper Settings
Figure 2: Input Logic Sinking/Sourcing Is Defined by the Jumper Setting
Output Logic
The 45MLA controller uses push-pull outputs that can be
connected to either sinking or sourcing input cards. Additionally,
the output logic can be inverted using DIP switch S1:5. The
procedure to do this is detailed in the sections describing each
controller.
Jumper Connect to PNP Output (Default) Connect to NPN Output
In1 Input IN1 active 'high' (+24V) Input IN1 active 'low' (0V)
In2 Input IN2 active 'high' (+24V) Input IN2 active 'low' (0V)
Input
24V
4k3
4k3
PNP
NPN
LED Indicators
The following table indicates the status and description for each
LED on the controller’s main PCB.
Table 4: Controller Main Board LED Status
DIP Switches
DIP switch settings and descriptions are detailed in model-
specific sections in this document. Change DIP switch settings
only when the controller power is off.
Potentiometer Settings
The time settings of outputs Out1 and Out2, overhang duration
(t_ot) and minimum output duration (t_out), can be adjusted
using the corresponding potentiometers, as described by the
following table.
Table 5: Controller Main PCB Potentiometer Adjustments
 I/O, RS485 and CAN controllers.
 Basic controller (only when double-scan mode is selected, for example,
via DIP switch 4).
 Potentiometer 1 is not used on the analog controller model.
LED Description Color Meaning
D1 Light Array OK
Off
Target present or light arrays not
aligned
Green
Target not present and light arrays
aligned
Green flashing Low margin/light intensity inadequate
D2 Light array status
Off Target not present
Red Target present
Red Flashing System
D3 Out1
Off Output 1 inactive
Green Output 1 active
D4 Out2
Off Output 2 inactive
Green Output 2 active
D5 In1
Off Input 1 inactive
Green Input 1 active
D6 In2
Off Input 2 inactive
Green Input 2 active
D7 Power
Off Power off
Green Power on
Pot Description Direction Limit Value
Pot 1
Allowed overhand
detection or scan
interruption ignore time
Counterclockwise t_ot = 0 s
Clockwise t_ot = 3.3s
Pot2 Minimum output duration
Counterclockwise t_out = 0s
Clockwise t_out = 3.3s