Wiring Inputs Into The Psu Pcba - Thermo Scientific Apex Service Manual

Wiring Inputs
into the PSU
Thermo Fisher Scientific
REC 4258 Rev C
Typically the types of inputs used are photo-eyes, micro switches, or
keylocks. Displayed above are J3 and J4 (top/middle/right). There are 6
inputs:
PCBA
Table 2. Wiring Inputs into the PSU PCBA
Connector
J3 pin 1
J3 pin 2
J3 pin 3
J3 pin 4
J3 pin 5
J3 pin 6
J3 pin 7
J3 pin 8
J3 pin 9
J3 pin 10
J3 pin 11
J3 pin 12
J4 pin 1
J4 pin 2
J4 pin 3
J4 pin 4
J4 pin 5
J4 pin 6
J4 pin 7
CAUTION. Do not use these inputs for connection to any system or unit
having signal voltages outside of the range ground to 12v. Damage may
occur. If in doubt contact
Name Application
12v 12v feed to power a photo-eye
Input 2 Input, internal pull-up – connect to 0v to activate
0v Ground/ return connection for Photo-eye
12v 12v feed to power a photo-eye
Input 3 Input, internal pull-up – connect to 0v to activate
0v Ground/ return connection for Photo-eye
12v 12v feed to power a photo-eye
Input 4 Input, internal pull-up – connect to 0v to activate
0v Ground/ return connection for Photo-eye
12v 12v feed to power a photo-eye
Input 5 Input, internal pull-up – connect to 0v to activate
0v Ground/ return connection for Photo-eye
12v 12v feed to power a photo-eye
Input 6 Input, internal pull-up – connect to 0v to activate
0v Ground/ return connection for Photo-eye
5v 5v feed to speed sensor LED incorporating current limit
LED Current limited feed to speed sensor LED only
Input 1 Speed sensor input – exclusively used on this input
0v Ground/ return connection for speed sensor
Thermo Scientific.
APEX I/O and PSU Connections
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APEX I/O and PSU Connections 2-3