
- protection of the operator from being squeezed between the ram and the matrix
(all other safety monitoring functions are carried out by a safety control (e.g. safety PLC
FPSC
)
- The
safety PLC
gives a safe signal to the
AKAS®
inputs
FUS
and
FUO
, if a closing movement is
about to be performed, and another
safe signal
is given to
SGO
,
SGS
and
SP
, if the press closes
safely at slow speed.
- For this, the signal lines
must be monitored for
eventual short-circuits by the
safety PLC.
- The safety PLC evaluates the safeyt outputs OSSD1 and OSSD2 of the AKAS® and stops the
closing movement, if there is no signal from the OSSDs.
- The machine control system must carry out an overrun traverse test of the press at least after every
voltage reset, and this test must be repeated at least within the next 30 h. By doing this, the overrun
traverse must not exceed the value of the maximum allowable overrun traverse that has been
programmed by the dip-switches in the receiver-support (
AKAS®-3PM) .
26
function
terminals
receiver
transmitter
14h
13h
12h
11h
10h
9h
8h
7h
6h
5h
4h
3h
2h
1h
1
2
3
5v
4v
3v
2v
1v
6v
Electrical connections - Description / Wiring diagrams
6
-operation only with additional safety PLC
(
FPSC
)
6.3
Doku Nr. 1379 Stand 27.1.2017 /Aui
5
1
2
3
4
Dip-switches for the adjustment of
the AKAS® in relation to the distan-
ce to the ram of the press
(adjustment independent from the over-
run traverse of the press according to the
table 15/1)
Terminals at the Receiver
No.
1v
designation
SGO
meaning
input
slow speed position
signal level
0V at fast speed
+24V at slow speed
2v
3v
4v
5v
SGS
SP
input
slow speed position
input
safety point
SGA
HUSP
output
slow speed request
output
higher mutepoint request (AKAS®-
3M), message box bending
0V at fast speed
+24V at slow speed
0V in fast speed range
+24V in blanking range
0V only slow speed permitted
+24V fast-/slow speed possible
+24V if box-bending is selected
6v
1h
2h
3h
-
+Motor
nc
connection for + motor transmitter support
-Motor
+Ub transmitter
connection for - motor transmitter support
connection for +Ub AKAS-connector
4h
5h
6h
7h
FUS
FUO
input
Start / Stop
closing stroke
input
Start / Stop
closing stroke
KAST
OSSD1
input
box bending
safety output
release of closing stroke
+24V if FUS is triggered
0V Press brake stop
+24V Press brake close
0V Press brake stop
+24V Press brake close
+24V Pulse minimum 100 ms
+24V if released
8h
9h
10h
11h
OSSD2
+Ub 24VDC
safety output
release of closing stroke
power supply voltage
-Ub 0V
-Ub transmitter
power supply voltage
connection for -Ub AKAS transmitter
12h
13h
14h
RS 232 GND
RS 232 out
output message (State-/error)
output message (State-/error)
earth
functional ground
+24V if released
Terminals at the Transmitter
No.
5
designation
earth
meaning
functional ground
4
3
1
2
-S
+S
-Ub transmitter
+Ub transmitter
+Motor
-Motor
+ Motor transmitter support
- Motor transmitter support
inputs
switching
equiva-
lent
inputs
switching
equiva-
lent
AKAS®-3PM
(e.g.
FPSC
)
FIESSLER
E L E K T R O N I K
1
2