UG:105
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Enable/Disable control of Maxi/Mini/Micro 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 2, 4 and 6 have been configured as a single output parallel array (see Figure 6)
In order to disable the 48 V output, E/D 2, E/D 4 and E/D 6 should be shorted together
as shown in Figure 6. With E/Ds connected together, a single switch can then be used to
remotely enable and disable the output.
**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.
General Shutdown /GSD (J10-12)
The GSD control pin on J10-12 allows simultaneous shutdown of all ConverterPAC
outputs (see Connector Pin Identification on page 9). This pin must be pulled down
to less than 0.7 V, and will sink 13 mA maximum to shut down all outputs. The GSD
pin should be open circuited or allowed to exceed 4.5 V when not in use, or when
the outputs are to be enabled. Do not apply more than 6 V to this input at any time.
Normal open circuit voltage is 1.5 to 3 V with respect to Signal Ground. If driven from
an electromechanical switch or relay, a capacitor should be connected to eliminate the
effects of switch bounce.
Figure 6.
Enable/Disable Control
of Maxi Arrays
PZ48V/12.5AN
PZ48V/12.5AJS1
PZ48V/12.5AJS1
Slot# 1
Slot# 2
Slot# 3
Slot# 4
Slot# 5
Slot# 6
Slot# 7
Slot# 8
J1
J10
2
4
6
10
12
3
Power Facto
r Corrected
MegaPAC
M5V/40A
M3.3V/40A
