Lazer Safe PCSS-F Series Technical Manual page 16

PCSS-F Additions Technical Manual
The down enable condition from the down enable option is not physically connected to an
output but is one of the conditions that must be met before down movement is allowed by the
PCSS. This condition used from the down enable option indicates that the down switch has
been pressed and that down movement of the pressing beam can occur due to the required
safety conditions being met.
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.
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
operation of these solenoid valve outputs during up and down movement of the pressing beam
is shown in
The high speed solenoid output is connected to a safety output on the PCSS and allows the
control of the high speed solenoid valves on the press brake. If the down enable condition has
been met but the down low speed condition has not been enabled, the high speed solenoid
output will be switched on and the pressing beam can move down at high speed. This output
will be switched off when down low speed is required.
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.
The proportional pressure output from the down enable option is set once the hydraulic pump
is running and if:
•
The down enable condition is set; or
• The decompression command has been received from the CNC press controller; or
• The up command has been received from the CNC press controller after decompression.
Page 4-6
Original Language Version: 1.02
Figure 4-2.
for the FIO04 module. The
Figure 4-1
LS-CS-M-023
Released: 03/12/2013