Vicor 4kW MegaPAC-EL AC-DC Switchers - Manual (Page 18)

UG:108 vicorpower.com Applications Engineering: 800 927.9474 Page 18
Interface Connections (Cont.)
Enable/Disable Control of Maxi Module Arrays
When using the Enable/Disable function on an output that consists of two or more Maxi
modules, it is necessary to connect the E/D pins of the corresponding module locations
together such that both modules are commanded to turn ON or OFF simultaneously.
Example: Slots 1 through 6 have been configured as a single output parallel array
(see Fig. 6)
In order to disable this array, E/Ds 1 through 6 should be shorted together as shown in
Fig. 6. With the E/Ds connected together, a single switch can then be used to remotely
enable and disable the output.
**Note: Note: For single output power supply configurations, the simplest method of remotely
enabling and disabling the output is to use the General Shutdown (GSD) function.
Figure 6.
Enable/Disable Control
of Maxi Arrays
L1 L2 L3
14
1 2
15 16
3 4
17 18
5 6
19 20
7 8
21 22
9 10
23 24
11 12
25
13
1 2 3 4 5 6 7 8 10 9
Figure 5.
Enable/Disable and
General Shutdown
10K
Signal Ground 1, 2, 12, 15
J10
General Shutdown 5
Enable/Disable Output #1 24
+5 Volt Vcc 16
10K
499
499
JP1 JP2
1 2 3 1 2 3
End of Life - Not Recommended for New Designs