Lazer Safe PCSS-A Series Technical Manual page 172

PCSS-A Series Technical Manual
The down low speed condition is enabled when slow speed operation is required, but as with
the down enable condition, it is not physically connected to an output. This condition is used
to indicate that slow speed down movement is enabled. Any of the following variables being
set, will cause a latched condition to be set which is not reset until the TDC input to the Kernel
Software Interface is set:
•
Pressing speed;
•
Crawl speed;
•
CNC mute has been reached;
•
CNC controller has not yet been referenced;
•
Pressing of the material has begun; or
•
High speed disable distance before mute position has been reached.
When this latched condition and the down enable condition are both set, then the down low
speed condition will be enabled or set.
In addition, the condition Pre-Pressing Ready (DO1 I/O channel 37 of the Kernel Software
Interface, refer
timing diagram,
The outputs used on the PCSS for the solenoid valves on the press brake provided by this
option are detailed below with the connections shown in
The YV1 or safety solenoids are connected to safety output Y01 on the PCSS. This output
will be switched on whenever the down enable condition is set.
The YV2 solenoids are connected to safety output Y05 on the PCSS and will be switched on
under the following conditions.
•
The Pre-Pressing Ready condition has been set; and
•
Down low speed condition is also set.
The YV3 solenoids are connected to safety output Y03 on the PCSS. These valves will only
be switched on when the up command has been given to move the pressing beam up.
The YV4 or down solenoids are connected to the safety output Y04 on the PCSS and will be
switched on whenever the down enable condition is set.
The YV5 or prefill solenoids are connected to safety output Y02 on the PCSS and are enabled
when the down low speed condition is set.
Table 11-28
brake start-up tests. Note that if Down Enable Attribute Bit 1=1
solenoids are turned off for both start-up tests.
Table 11-28: Down Enable Option 35 Start-up Test Solenoid Operation
Page 152
Original Language Version: 1.25
Section 7) is also required to control the valve outputs, as shown in the valve
Figure 11-47 below.
details the operation of the solenoids which will be switched off during the press
Start-up Test 1
YV1/Safety
YV2
YV5/Prefill
Figure 11-46 for the AIO.
(Table
Start-up Test 2
YV2
YV3
YV4/Down
YV5/Prefill
LS-CS-M-046
11-1), then all
Released: 12/09/2024