STATUS SCIENTIFIC CONTROLS MCU3 - Page 39

STATUS SCIENTIFIC CONTROLS
MCU System Installation and Hardware Configuration Manual
TD06/001
Issue:
6
Change Note:
1696
Page 4-9
4.1.2.3 DC Voltage Input
Connection Procedure
• Disconnect power from the system.
• Remove the grey protective cover from the appropriate input module
• Configure the jumper switches as shown below (i.e. J9 and J14 switched ON, all others
OFF)
• Remove R16 and R18 (located above J13) from the input module.
• Fit conventional ¼watt resistors to positions SR1 and SR2 using values from the following
table.
Voltage Input (max)
SR1
SR2
2.5V
18R
470R
5V
390R
330R
10V
1K5
470R
12V
1K8
390R
24V
12K
1K2
For alternative voltage inputs contact Status Scientific for appropriate resistor values.
• Connect the detector head to PL1 observing the above diagram.
• Connect power to the system.
• Refit grey protective cover.
• Perform software configuration (refer to ‘MCU Software Configuration and System
Calibration Manual’).
• Perform system calibration. Refer to ‘MCU Software Configuration and System Calibration
Manual’ and detector head manufacturers instructions.
J12 J11 J10
J9 J8 J7 J6
J14
J13
- +
Voltage Output
PL1
Terminals
0V
21
22
23
24
Voltage
Sensing
Circuit
0V
The Input Modules can be configured to accept signal levels in voltage form.
SR1 and SR2 are used to scale the voltage to the appropriate level.