1.3.2 TWO POWER SUPPLIES OPERATION:
Make sure the power supplies are NOT energized while making electrical connections to the controller.
The output voltage of the TE Device Power Supply should not exceed the maximum desired input voltage of
the thermoelectric device, or the rated input voltage of the cooling assembly.
If voltage is not between 12 V to 36 V then a two power supply configuration is necessary.
a) Connect the DC voltage power supply (for powering the controller electronics) to the controller (≥12 V and ≤36 V,
150 mA minimum):
i) Connect wire between Positive (+) terminal of the power supply and JP2-9.
ii) Connect wire between Negative (-) terminal of the power supply and JP2-7.
b) Connect the DC voltage power supply (for powering the TE device) to the controller (>0 V but ≤36 V):
i) Connect wire between Positive (+) terminal of the power supply and JP7-4.
ii) Connect wire between Negative (-) terminal of the power supply and JP7-3.
c) See Section 1.4 for further information on connecting the TE device.
Connections, Two Power Supply Operation
JP7 JP21 2 3 4 10 9 8 7 6 5 4 3 2 1
(+)
(-)
TE DEVICE
TE DEVICE
POWER SUPPLY
OPTIONAL FUSE
THERMOSTAT AND OTHER
PROTECTIVE DEVICES
(CUSTOMER SUPPLIED)
OPTIONAL
SECONDARY
SENSOR
JP2-4 (+) and
JP2-3 (-)
CONTROL
SENSOR
JP2-1 (+) and
JP2-2 (-)
>0 V, 36 V, 20 A maximum
JP7
PIN 1
JP2
PIN 1
WIRES MUST PASS THROUGH
GASKET HOLES
NOTE: LID IS REMOVED TO SHOW
WIRE CONNECTIONS
USB COMMUNICATION PORT
CONTROLLER
POWER SUPPLY
12 V, 36 V, 150 mA minimum
(-)
(+)
to JP2-7
to JP2-9
to JP7-1
to JP7-2
to JP7-3
to JP7-4
≥
≤
≤
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