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MPT-90 PRODUCT MANUAL
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3.2.1.2.5
P59
P59 is used to select the voltage available on “Payload 4 (pin 45 of Payload
Port 2). In the default mode with the jumper on pins 1-2, pin 45 of Payload
Port 2 will have +12 VDC regulated power available with respect to pin 50.
Moving the jumper to pins 2-3 will reduce this to +5 VDC regulated.
3.2.1.2.6
P53
P53 is used to reconfigure how Aux 3 (Pins 36 & 14 of Payload 2) power
switching works. In the default mode, the + supply voltage (Pin 36, 12 or 5
VDC configurable) may be switched ON/OFF by the controller.
Reconfiguring P53 allows the
– return side (pin 14) to be switched in an “open
collec
tor” configuration. Although useful in some applications, do not use this
if your payload is otherwise connected back to ground.
3.2.1.2.7
P56
P56 is used to reconfigure how Aux 4 (Pins 37 & 15 of Payload 2) power
switching works. In the default mode, the + supply voltage (Pin 37, 12 or 5
VDC configurable) may be switched ON/OFF by the controller.
Reconfiguring P53 allows the
– return side (pin 15) to be switched in an “open
collector” configuration. Although useful in some applications, do not use this
if your payload is otherwise connected back to ground.
