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1 ups control logic, Sola 4000 - pcb description – Powerware Uninterruptible Power Supply SOLA 4000 User Manual

Page 103

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SOLA 4000 - PCB Description

JUE 401268

103

CPHC16 - S Front View

FIG. 1.8 illustrates the display, switches and connectors of the
CPHC16 - S PCB which are accessible from the front.

7 segment display for diagnostics (see table below)

Manual transfer to bypass pushbutton

RS232 connector (male)

RS485 connector (female)

In normal condition the display shows a red seg-
ment rotating clockwise.If more than one alarm is
present, only the one with the higher priority
is displayed.

1 UPS Control Logic

DIAGNOSTICS

Bypass

RS 232

RS 485

Priority

Indication

Diagnostics

1

8

E²PROM failure

2

F

Bypass Fuses Blown or IRE open

3

C

Phase failure

4

P

Incorrect phase rotation

5

l

l

Bypass square wave generation error

6

O

Output out of tolerance

7

L

Overload

8

4

Mains frequency out of tolerance

9

H

Mains voltage out of tolerance

10

6

Auxiliary power supply failure on the

SS/FY pcb

11

b

Bypass blocked

12

S

Bypass not synchronised

13

d

SSB failure

14

E

Bypass system not available

15

9

Missing or false bypass trip signal

16

7

EPO activated

17

U

IUG open

18

--

SSB on