81234-4rA XMPF10N5_24 SI Manual.docx
Page 5 of 5
4
Input and Output Connections
4.1
The low voltage signal connections are made by a 15
way ‘D’ connector; the pin out is shown below.
Pin #
Signal Name
Range
1
+24V input
2
Power Ground
3
Filament (direct program)
4
Signal ground
5
HV enable
Digital input
6
Not used
7
Cathode voltage program output
0
– 10V from internal pre set
8
Cathode voltage program input
0
– 10V input
9
Cathode voltage monitor
0
– 10V output
10
Emission current monitor
0
– 10V output
11
Filament current monitor
0
– 10V output
12
Emission current program input
0
– 10V input
13
Emission current program output
0
– 10V from internal pre set
14
Signal ground
15
Pre-set maximum filament current set value
4.2
Output:
The HV output is a flying lead consisting of 2 Reynolds 18kV rated FEP insulated wire, 1.02mm overall
diameter. Conductors 19/40AWG. Overall length 500mm. The two wires are sleeved together.
Pin
Name
N/A
F/Cathode
N/A
Filament-/Cathode
