Plc Programming Suggestions For Evaluating The Signal Outputs - Bosch Rexroth LU 2 Montageanleitung

Please note:
A: PLC-terminal strip inputs
B: PLC-terminal strip
outputs
l1: Cable white, output OK
l2: Cable black, output Err
l3: Cable brown, voltage
supply
B05 No signal green
B06 No signal red
B08 Cable break
1
): When using B02, l3:
Fault indication only
when the lubrication
unit is powered.
2
): B01, B09 and B11
optional:
error display only
necessary when saving.
Q2: Output Q2 = High if:
• Malfunction
• Oil container empty
• Cable break
A:
PLC-terminal strip inputs
B:
PLC-terminal strip
outputs
l1: Cable white, output OK
l2: Cable black, output Err
l3:
Cable brown, voltage
supply
B05 No signal green
B06 No signal red
B08 Cable break
1
):
Connect output B04
directly to the input B13,
if B11 B12 is not to
be used.
2
):
When using B13, l3:
Fault indication only
when the lubrication
unit is powered.
3
):
B11, B12 optional
Q1:
Output Q1 = High if:
• Oil container empty
Q2:
Output Q2 = High if:
• Malfunction
• Cable break
8.6.1

PLC programming suggestions for evaluating the signal outputs

• Lubricate only when the chain is running
• The voltage must be present long enough for the impulse to be completed.
3
l3 in
2
in
l2
B06
1
inv
B05
1
inv
1
in
l1
A
Fig. 18: PLC programming suggestion with one output signal
B02
on delay
50 sec
2
l2 in
B06
1
B08
inv
&
B05
and
1
inv
1
l1 in
3
in
l3
A
Fig. 19: PLC programming suggestion with two output signals
1 )
B02
&
and
B07
B04
1
on delay
or
120 sec
B08
&
and
B01
B09
&
on delay
and
50 sec
2 )
B03
1 )
Set Q
Reset
B07
latching relay
B04
B10
1
1
on delay
or
120 sec
or
B12
3 )
B01
1
B09
&
or B11
on delay
and
50 sec
Set Q
Reset
latching relay
2
)
3 842 358 814/2018-12, MIT: LU 2, Bosch Rexroth AG
Assembly 39/54
Q2
B11
1
Set Q
out
Reset
latching relay
B
358 814-13
Q1
1
out
B13
Q2
&
1
out
and
B
358 814-14