Lazer Safe PCSS-F Series, Technical Manual

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LS-CS-M-023 PCSS-F Additions Technical Manual
Page 4-17
Original Language Version: 1.02 Released: 03/12/2013
Two robot gate switch channels are provided on the PCSS unit for connection to the press
brake as shown in
Figure 4-12
for the FIO04 module. When the robot gate switch contacts
connected to both of these inputs are opened, an emergency stop condition is invoked by the
PCSS, preventing any further operation of the press brake but up movement of the press is still
allowed. This functionality is only applicable if the operating mode on the PCSS is configured
for robot mode.
Note:
To adhere to EN12622 Category 4 Safety requirements the operation of the gate
switches must be checked on a regular basis to identify any failures in the system.
Channel 1
Switches Channel 2
Switches
Machine Stop Description
Closed Closed No Normal operating condition.
Open Open Yes Valid stop condition. Up movement of the beam possible.
Closed Open Yes Fault with switch states detected. Emergency stop condition.
Open Closed Yes Fault with switch states detected. Emergency stop condition.
Table 4-4: Robot Gate Switch
Fault conditions for the state of both inputs are also monitored to always ensure they are in the
same state. If either of these inputs is in an opposite state or condition to the other input then a
fault condition will be flagged and an emergency stop condition of the press brake will occur as
shown in
Table 4-4
.
4.2.1.7 Option Selection
To select emergency stop option 6 during the PCSS configuration, set the initial value for the
emergency stop option selection variable to
6
. This will ensure that this option will be initialised
and all required inputs and outputs are activated when the PCSS software is started.
4.2.2 Emergency Stop Option 7
4.2.2.1 Door Switches
Gate Switch - Left
X14
X15
X16
X17
X18
FIO04
–
CN6
1
2
3
4
5
X19
6
P14
7
P15
8
P16
9
24VDC
NC
0VDC
10
11
12
Gate Switch - Right
Figure 4-13: Option 7 Door Switch (CN6 - FIO04 Connections)
Figure 4-13
shows the connections available for the FIO04 module when monitoring the left
and right doors on the press brake using the functionality for emergency stop option 7.
In this application, normally open (NO) and normally closed (NC) contacts from each of the
door switches are monitored with safety inputs on the PCSS unit. All doors should be closed
during normal operation.