Instruction Manual PROTECT-PSC
V 2.6R01 / 04.19
3
–37
4. Voltage lower than 18 volts
24V
0V
PWR - LED
External voltage
Internal voltage
on
off
on
off
Lower than 18 volts
F
F
i
i
g
g
u
u
r
r
e
e
3
3
-
-
1
1
8
8
V
V
o
o
l
l
t
t
a
a
g
g
e
e
l
l
o
o
w
w
e
e
r
r
t
t
h
h
a
a
n
n
1
1
8
8
v
v
o
o
l
l
t
t
s
s
The internal supply of the PROTECT-PSC is not released if the external voltage is
below 18 volts.
5. Voltage greater than 36 volts
PWR - LED
External voltage
Internal voltage
on
off
on
off
24V
0V
Greater than 36 volts
F
F
i
i
g
g
u
u
r
r
e
e
3
3
-
-
1
1
9
9
V
V
o
o
l
l
t
t
a
a
g
g
e
e
g
g
r
r
e
e
a
a
t
t
e
e
r
r
t
t
h
h
a
a
n
n
3
3
6
6
v
v
o
o
l
l
t
t
s
s
The internal fuse of the PROTECT-PSC is triggered if the external supply voltage
is above 36 volts.
The internal fuse is intended to protect the CPU module from overvoltage. Once
the fuse is effective, it is not possible to operate the PROTECT-PSC any longer.
Error messages
If errors occur in the above described measures or other internal/external errors,
these are read out as error messages. Every error message can be generated by
processor A/B. Which processor has generated the message can be recognised by
the prefix (A/B). The table below shows an excerpt of the possible error messages
of the CPU module. A complete list of all error messages is provided in Chapter
7.3.3.
Test
Error code
Meaning
Internal power
supply
A/B 013
Voltage of the internal 24 volt supply voltage
too low.
Back-up battery
A/B 022
Voltage of the back-up battery too low.
Back-up battery
A/B 0AC
Voltage of the back-up battery has an illegal
value.
Real-time clock
A/B 0A3
Error in response of the real-time clock.
Real-time clock
A/B 0AF
Real-time clock was not yet set.
T
T
a
a
b
b
l
l
e
e
3
3
-
-
1
1
3
3
S
S
e
e
l
l
e
e
c
c
t
t
i
i
v
v
e
e
e
e
r
r
r
r
o
o
r
r
m
m
e
e
s
s
s
s
a
a
g
g
e
e
s
s
o
o
f
f
t
t
h
h
e
e
C
C
P
P
U
U
m
m
o
o
d
d
u
u
l
l
e
e
Summary of Contents for PROTECT-PSC
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Page 265: ...Annex 8 Instruction Manual PROTECT PSC V 2 6R01 04 19 8 5 8 3 EC Type Examination certificate ...
Page 266: ...Annex 8 Instruction Manual PROTECT PSC V 2 6R01 04 19 8 6 8 4 Declarations of conformity W ...
Page 267: ...Annex 8 Instruction Manual PROTECT PSC V 2 6R01 04 19 8 7 8 5 Index ...
