Reer ARGOLUX AS 1103, Руководство пользователя

Страница: 9 / 35

The control unit displays a test input which must be used to generate a test
sequence before each reset of the safety system or before a machine cycle
if necessary.
European regulations enforce the test performance before the effective
reset of the system, at power up and after any intrusion into the detection
field.
The test command is activated by closing a contact between terminals 15
and 16 during 10ms at least. The test is then performed during 100ms.
If a failure is detected, the reset of the system is impossible and no machine
cycle can be initiated. If no a failure is detected, the control unit energizes
its relays A and B, which is the condition to initiate a new machine cycle.
It is possible to generate a test sequence at any moment by closing a contact
between terminals 15 and 16.
The first step consists in controlling the correct operation of the scanning
circuitry.
The system checks that the ASR receiver output relay goes to the OFF state
when the detection field is broken. This detection is electronically simulated.
Then, the next step consists in controlling the AU S3 output relay . The ON
and OFF reaction times of both relays are measured and compared.
During the 100 ms test period, the outputs remain open (contacts between
terminals 8-13 and 9-12 remain open).
The test sequence can be generated at power up, after any The test sequence can be generated at power up, after any The test sequence can be generated at power up, after any The test sequence can be generated at power up, after any
intrusion into the detection field and at any other moment if intrusion into the detection field and at any other moment if intrusion into the detection field and at any other moment if intrusion into the detection field and at any other moment if
the detection field is clear. the detection field is clear. the detection field is clear. the detection field is clear.
The test is only allowed when the detection field is clear.
The test is only allowed when the detection field is clear. The test is only allowed when the detection field is clear.
The test is only allowed when the detection field is clear.
CON T A CT S S T A T U S CON T A CT S S T A T U S CON T A CT S S T A T U S CON T A CT S S T A T U S
( R e f . : c o n n e c t i o n d i a g r a m p a g e 2 7 )
!
!
Control unit status
GUARD CLEAR BREAK FAIL FAIL (FAIL K1-K2)
Output of the
the receiver ASR
Sensing field
not interrupted
Sensing field
interrupted
Sensing field
not interrupted
Sensing field
interrupted
Output of
the control
unit AU S3
8-13
9-12
10-11
Relay
K1
K1-1
K1-2
Relay
K2
K2-1
K2-2
8
88
8