6

TCP3500/4000 Series

tech.support@psbel.com

SIGNAL NAME

PIN #

TYPE

SIGNAL

REFERENCE

LOW LEVEL

HIGH LEVEL

V MAX

I MAX

RS485-1A

1

RS485 Half Duplex, Differential pair 1

RS485-1B

+/-60 mA

@ 60

-7 to 12 VDC

8 mA

RS485-2A

2

RS485 Half Duplex, Differential pair 2

RS485-2B

+/-60 mA

@ 60

-7 to 12 VDC

8 mA

ADDR-INIT IN

3

The unit’s address change required

SRTN

<0.4 VDC

>2.5 VDC

3.6 VDC

0.2 mA

IN OK

4

AC Power Fail Warning - open collector,

external pull-up needed to max. 7 V

SRTN

<0.4 VDC

Pull up

7 VDC

20 mA

OUT OK

5

Output Voltage Fault - open collector,

external pull-up needed to max. 7 V

SRTN

<0.4 VDC

Pull up

7 VDC

20 mA

INHIBIT

6

Output Inhibit - Open circuit or “High” to SRTN

shuts OFF Vout

SRTN

<0.4 VDC

>2.5 VDC

3.6 VDC

0.2 mA

ENABLE

7

Power Supply Enable pin – for unit enable short

this pin to SRTN

SRTN

<0.4 VDC

>2.5 VDC

3.6 VDC

0.2 mA

8

Signal Return

-

-

-

RS485-1B

9

RS485 Half Duplex, Differential pair 1

RS485-1B

+/-60 mA

@ 60

-7 to 12 VDC

8 mA

RS485-2B

10

RS485 Half Duplex, Differential pair 2

RS485-2B

+/-60 mA

@ 60

-7 to 12 VDC

8 mA

Not Connected

11

-

-

-

-

OT/FAIL

12

Over Temperature /PSU Fail, open collector,

external pull-up needed to max. 7 VDC

SRTN

<0.4 VDC

Pull up

7 VDC

20 mA

PS-PRESENT

13

Power Supply Seated – signal internally

connected through 10 Ohm resistor to SRTN

SRTN

-

1 VDC

100 mA

ACSH

Active Current Share

SRTN

0.2 VDC

5.0 VDC

7 VDC

0.7 mA

Margin

15

Optional – analog signal for Output Voltage

adjustment – Not connected

-

-

-

Connector type:

Würth Elektronik, 61801529221

Mating part:

Würth Elektronik, 61801529321

1

SRTN and Vout- are connected together inside the power supply (not valid for TCP4000-H090). The power supplies with

maximal output voltage >60V have all signals on 15-pin DSUB connector galvanically isolated from main output (including

SENSE +/- and ACSH).

2

120

Ω resistors connection required between RS485-xA and RS485-xB on both sides externally.

3

The pin 14 on TCP4000-H090 is not internally connected to ACSH signal (see capture 8.6).

8.3 SIGNAL INPUT CONNECTOR: PINOUT