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2 two power supplies operation, Connections, two power supply operation – TE Technology TC-720 User Manual

Page 19

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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.

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

JP2

1

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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