SERV-HB 38Z3 EN –
SERV-HB 38Z3 EN –
Edition 2.1
Edition 2.1
* 38z3s710.fm
* 38z3s710.fm
☞
☞
Microcontroller ... diagnoses errors supplied by the output stage.
Microcontroller ... diagnoses errors supplied by the output stage.
☞
☞
Monitor...disables the output stage if the microcontroller breaks down.
Monitor...disables the output stage if the microcontroller breaks down.
☞
☞
Output stage...controls the status of the supply lines from the pressure regulating
Output stage...controls the status of the supply lines from the pressure regulating
valves
valves
☞
☞
Watchdog...disables the microcontroller in case the microcontroller breaks down
Watchdog...disables the microcontroller in case the microcontroller breaks down
☞
☞
Switch for valve supply...disables the power supply to the valves if a critical error is
Switch for valve supply...disables the power supply to the valves if a critical error is
detected.
detected.
System breakdowns can never be excluded, therefore:
System breakdowns can never be excluded, therefore:
•
•
Disconnect the electronic controls from the power supply before carrying out repair
Disconnect the electronic controls from the power supply before carrying out repair
work or maintenance on the hydraulic system
work or maintenance on the hydraulic system
•
•
Stay clear of areas and parts with danger of crushing
Stay clear of areas and parts with danger of crushing
•
•
Stay clear of in-between moving hydraulic components and fixed obstacles!
Stay clear of in-between moving hydraulic components and fixed obstacles!
DANGER OF CRUSHING!
DANGER OF CRUSHING!
•
•
The operator of the machine or hydraulic system must be aware of possible machine or
The operator of the machine or hydraulic system must be aware of possible machine or
system errors
system errors
The control valve status is displayed to the user by means of a flashing code.
The control valve status is displayed to the user by means of a flashing code.
The following errors are identified by the number of flash pulses:
The following errors are identified by the number of flash pulses:
The system switches off automatically if a critical error is detected. Activating the control
The system switches off automatically if a critical error is detected. Activating the control
unit is only possible by repeatedly switching on the supply voltage.
unit is only possible by repeatedly switching on the supply voltage.
N
N
o
o
.
.
P
P
i
i
n
n
n
n
o
o
.
.
D
D
e
e
s
s
c
c
r
r
i
i
p
p
t
t
i
i
o
o
n
n
E
E
r
r
r
r
o
o
r
r
T
T
r
r
o
o
u
u
b
b
l
l
e
e
s
s
h
h
o
o
o
o
t
t
i
i
n
n
g
g
Critical
Critical
error
error
0
0
-
-
-
-
N
N
o
o
e
e
r
r
r
r
o
o
r
r
-
-
-
-
1
1
B
B
5
5
C
C
h
h
a
a
n
n
n
n
e
e
l
l
1
1
i
i
n
n
p
p
u
u
t
t
(
(
l
l
e
e
f
f
t
t
)
)
D
D
e
e
f
f
e
e
c
c
t
t
i
i
v
v
e
e
i
i
n
n
p
p
u
u
t
t
v
v
o
o
l
l
t
t
a
a
g
g
e
e
Check voltage,
Check voltage,
home position: 2.5 V
home position: 2.5 V
deflected: 0.7 V – 4.3 V
deflected: 0.7 V – 4.3 V
-
-
2
2
A
A
4
4
,
,
A
A
9
9
C
C
h
h
a
a
n
n
n
n
e
e
l
l
1 o
1 o
u
u
t
t
p
p
u
u
t
t
;
;
Y
Y
1
1
6
6
/
/
Y
Y
1
1
7
7
O
O
v
v
e
e
r
r
l
l
o
o
a
a
d
d
o
o
r
r
o
o
v
v
e
e
r
r
h
h
e
e
a
a
t
t
i
i
n
n
g
g
(
(
o
o
u
u
t
t
p
p
u
u
t
t
s
s
t
t
a
a
g
g
e
e
)
)
C
C
h
h
e
e
c
c
k m
k m
a
a
g
g
n
n
e
e
t
t
o
o
n
n
v
v
a
a
l
l
v
v
e
e
-
-
3
3
A
A
4
4
,
,
A
A
9
9
C
C
h
h
a
a
n
n
n
n
e
e
l
l
1
1
o
o
u
u
t
t
p
p
u
u
t
t
;
;
Y
Y
1
1
6
6
/
/
Y
Y
1
1
7
7
Short circuit on earth or operating volt-
Short circuit on earth or operating volt-
age
age
C
C
h
h
e
e
c
c
k
k
w
w
i
i
r
r
i
i
n
n
g
g
x
x
4
4
B
B
4
4
C
C
h
h
a
a
n
n
n
n
e
e
l
l
2
2
i
i
n
n
p
p
u
u
t
t
(
(
r
r
i
i
g
g
h
h
t
t
)
)
D
D
e
e
f
f
e
e
c
c
t
t
i
i
v
v
e
e
i
i
n
n
p
p
u
u
t
t
v
v
o
o
l
l
t
t
a
a
g
g
e
e
Check voltage,
Check voltage,
home position: 2.5 V,
home position: 2.5 V,
deflected: 0.7 V – 4.3 V
deflected: 0.7 V – 4.3 V
-
-
5
5
A
A
7
7
,
,
A
A
8
8
C
C
h
h
a
a
n
n
n
n
e
e
l
l
2 o
2 o
u
u
t
t
p
p
u
u
t
t
;
;
Y
Y
1
1
8
8
/
/
Y
Y
1
1
9
9
O
O
v
v
e
e
r
r
l
l
o
o
a
a
d
d
o
o
r
r
o
o
v
v
e
e
r
r
h
h
e
e
a
a
t
t
i
i
n
n
g
g
(
(
o
o
u
u
t
t
p
p
u
u
t
t
s
s
t
t
a
a
g
g
e
e
)
)
C
C
h
h
e
e
c
c
k m
k m
a
a
g
g
n
n
e
e
t
t
o
o
n v
n v
a
a
l
l
v
v
e
e
-
-
6
6
A
A
7
7
,
,
A
A
8
8
C
C
h
h
a
a
n
n
n
n
e
e
l
l
2
2
o
o
u
u
t
t
p
p
u
u
t
t
;
;
Y
Y
1
1
8
8
/
/
Y
Y
1
1
9
9
Short circuit on earth or operating volt-
Short circuit on earth or operating volt-
age
age
C
C
h
h
e
e
c
c
k
k
w
w
i
i
r
r
i
i
n
n
g
g
x
x
7
7
-
-
S
S
y
y
s
s
t
t
e
e
m
m
s
s
t
t
a
a
r
r
t
t
-
-
x
x
8
8
A
A
1
1
0
0
,
,
A
A
1
1
1
1
M
M
o
o
t
t
o
o
r
r
o
o
u
u
t
t
p
p
u
u
t
t
O
O
v
v
e
e
r
r
h
h
e
e
a
a
t
t
i
i
n
n
g
g
(
(
o
o
u
u
t
t
p
p
u
u
t
t
s
s
t
t
a
a
g
g
e
e
)
)
C
C
h
h
e
e
c
c
k
k
m
m
o
o
t
t
o
o
r
r
x
x
9
-
9
-
-
-
E
E
E
E
P
P
r
r
o
o
m
m
d
d
a
a
t
t
a
a
e
e
r
r
r
r
o
o
r
r
-
-
x
x
1
1
0
0
B
B
6
6
+
+
5
5
V
V
j
j
o
o
y
y
s
s
t
t
i
i
c
c
k
k
D
D
e
e
f
f
e
e
c
c
t
t
i
i
v
v
e
e
5
5
V
V
s
s
u
u
p
p
p
p
l
l
y
y
-
-
x
x
7-25
7-25
Options
Options
Safe
Safe
ty
ty
features
features
Mea
Mea
sures to be taken in case of malfunc
sures to be taken in case of malfunc
tions
tions
Caution
Caution
Dia
Dia
gnosis
gnosis
display
display
Summary of Contents for 38Z3
Page 1: ...Track excavator Track excavator...
Page 32: ...SERV HB 38Z3 EN Edition 2 1 38z3s410 fm...
Page 33: ...SERV HB 38Z3 EN Edition 2 1 38z3s410 fm...
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