IDEC SG4 Type 4 Finger & Hand - Manual (Page 48)

SG4-B Series Instruction Manual
44
8. PERIODICAL CHECKS
The following is a list of recommended check and maintenance
operations that should be periodically carried-out by qualified
personnel (Paragraph 2.2.6 “Controls after first installation”)
Check that:
 The ESPE stays locked (
) during beam interruption along the
entire protected area, using the suitable “Test Piece” (*)
 The ESPE is correctly aligned. Press slightly product side, in both
directions and the red LED ( ) must not turn ON.
 Enabling the TEST function, the OSSD outputs should open (the
red LED is ON and the controlled machine stops).
 The response time upon machine STOP (including response time
of the ESPE and of the machine) is within the limits defined for the
calculation of the safety distance (see section 2 “Installation
mode”).
 The safety distance between the dangerous areas and the ESPE
are in accordance with the instructions included in section 2
“Installation mode”.
 Access of a person between ESPE and machine dangerous parts is
not possible nor is it possible for him/her to stay there.
 Access to the dangerous area of the machine from any unprotected
area is not possible.
 The ESPE and the external electrical connections are not
damaged.
The frequency of checks depends on the particular application and
on the operating conditions of the safety light curtain.
(*) according to the Fig.12 scheme
Verify that:
ESPE remains blocked (
) intercepting the beams along the
protected area using the specific test piece, following the Fig.12
scheme.
TP14 for light curtains with 14 mm resolution: SG4-14-XX-X
TP30 for light curtains with 30 mm resolution: SG4-30-XX-X