Lazer Safe PCSS-A Series Technical Manual page 125

LS-CS-M-046
The prefill solenoid output is connected to a safety output on the PCSS and provided that:
•
There is no emergency stop condition;
•
The pressing beam is level;
•
The enable is set; and
•
The hydraulic pump is running,
This output will be switched on when the down low speed condition is set, or when at the
position where pressing of the material is being performed.
The proportional enable output is used to enable the proportional solenoid on the press brake
and is connected to a standard output. Once the pump is running, this output remains on
when the down enable is on, the CNC press controller has initiated the up command after
decompression or during decompression.
HIGH SPEED SOLENOIDS
PROPORTIONAL ENABLE
Should the soft stop operation be enabled as described in
valves will be delayed in switching off until down movement comes to a complete stop. The
proportional enable output will switch off immediately and can be used to perform a controlled
decelerated stop.
Table 11-4
brake start-up tests.
Table 11-4: Down Enable Option 3 Start-up Test Solenoid Operation
To select down enable option 3 during the PCSS configuration, set the initial value for Down
Enable Option Selection Variable to 3 as described in
option and all required outputs are initialised when the PCSS software is started.
Original Language Version: 1.25
TDC
BDC
DOWN ENABLE
1
0
DOWN LOW SPEED
1
0
1
AIO – Y01
0
PREFILL SOLENOID
1
AIO – Y02
0
AIO – Y06 1
0
Figure 11-5: Down Enable Option 3 Output Operation
details the operation of the solenoids which will be switched off during the press
Start-up Test 1
High Speed
Prefill
Proportional Enable
Section 10.6.27, the high speed
Start-up Test 2
High Speed
Prefill
Proportional Enable
Section 9.2. This will ensure that this
PCSS-A Series Technical Manual
TDC
BDC
Page 105
Released: 12/09/2024