Allen-Bradley MSR42, Руководство пользователя, Страница: 12 / 20

10
Light Curtain Multi-Function Control Module User Manual
Or i g i nal i nstruct i ons
Following connections may be used for test inputs.
Figure 12: Connection possibilities for the input
The timing of test input is as follows (Figure 13):
Table 12: Timing during testing
Figure 13: Test timing diagram (minimum off time = see configuration control document)
t
R
means the max response time of the total system (see page 4). The
machine controller has to check the output of the OSSD during such a
test. If the machine controller detects an error, then the machine
controller should not allow the machine to restart, respectively must stop
the machine immediately.
In case of a test failure the status output “Info2” will also provide a failure
signal.
Table 13
D i agnost i c
In the event of a fault condition, it will be indicated by
1. the red LED of a connected GuardShield Micro 400 safety light
curtain are blinking
2. can be visually noticed in that the blue OptiLink LED (located on the
side of a MSR42 unit) is off
3. one of the info outputs (if configured)
In this situation both safety outputs are low and the relays of the
extension modules are open, and the controller unit is now in the so-
called lock-out mode.
Two options exist to leave the lock-out mode:
• Power up. If the fault is still present the controller will again show
the lock-out mode.
• A start impulse longer than 10 s acts like a power up.
More detailed lock out information can be obtained with help of the
USB/optical interface (445L-AF6150) and the software “Configuration
& Diagnostic Tool”.
External f aults
The following external faults apply to the “Out of Box” configurations
only. Reference Table 14 for detailed information.
Table 14
Programmed Configuration Diagnostics can be obtained with the use of
USB / Optical Interface (445l-AF6150) and the software
“Configuration and Diagnostic Tool”
I nternal f aults
The following internal faults apply to the “Out of Box” configurations
only. Reference Table 15 for detailed information.
Table 15
The lock-out mode of a MSR42 control module may be reset by one of
two methods:
1. Power down, then Power up. If the fault is still present the module
will again lock-out.
2. A start signal longer than 10 seconds acts like a power up.
Further diagnosis possibilities are possible with the software
Configuration & Diagnostic Tool in combination with the USB/optical
interface. If the MSR42 unit has a lock-out, the exact fault description
can be determined with these tools. An exact description is available at
any time after a lock-out, as long as the MSR42 unit is still in the lock-out
condition.
Time Value in ms
Response time to test signal t
1
≤ t
R
ime to test t
2
≤ t
1
Restart time after test t
3
≥ t
R
Terminal LED green LED red
IN 1 or IN 2 External test signal high External test signal low (test running)
short circuited
Test input
OSSD 1 / OSSD 2
open
t
1
t
2
t
3
No Fault profile Fault description Measures & instructions
1 No power LED
No Power Connection to +24
VDC OV Check power connections and
power supply
2
Light curtain LED(s) are
flashing red
Light curtain Rx / Tx are swapped
Reverse Rx / Tx connections and
retry
Open / missing light curtain
cable Replace expansion cable on the
light curtain that is not flashing
Defect in light curtain Replace light curtain
3
OSSD1 & OSSD2 LEDs are
red
No relay outputs
Missing reset switch for manual
reset
Add rest switch with N/O contact
Missing 24 VDC to GPIO3 and
GPIO4 for automate reset. Add 24VDC jumper to GPIO3 and
GPIO4
Missing 24VDC to IN1 and IN2
Add 24VDC jumper to IN1 and
IN2
No start release signal from
external contactors Check wiring and function of
external contacts
No Fault profile Fault description Measures & instructions
1 No Power LED
Power supply is ok but MSR42
relay does not power up
Replace the MSR42 and retry
2
Relay is in Lockout mode
Will not initialize
All input and reset LEDS are ok.
No external faults were
detected. Relay locks upon
power up and will not release
Replace the MSR42 and retry