13
Operation mode: Stepping operation
Start sequence
To enable the machine at start-up on stepping operation 2 diff erent start
sequences can be chosen:
1.) The required number of interruptions of the LC must be completed
and then the start button must be pressed.
2.) The start button is pressed fi rst, and after that the required number
of interruptions must be completed.
The request to start the operation (e.g. 2 steps according to the diagrams
below) is signalled by a fl ashing lamp (terminal 48). The request to press the
start button is signalled by continuous light on a lamp (terminal 58). After
fi nishing the starting sequence correctly the lamps go off and the contact K1
and K2 close.
e.g. Presses with manual operation and automatic start
Max. 3 light curtains
Setting functions:
1, 2 or 3 steps
2 diff erent start sequences
2 ways of monitoring the machine contact
Number of steps fi xed or settable with key switch
Stepping operation enables automatic restart of a machine (Press) after a
certain number of accesses into the protected area of the fi rst LC. This
Operation consists of start sequence and normal sequence.
A correct starting sequence is necessary to run the normal operating
sequence. In the normal operating sequence the machine movement is
signalled to the light curtain by opening and closing of the machine contact.
The output contacts of the MSR22LM are opened when the machine contact
opens. After that the operator must interrupt the LC for the required
number of times to start again the machine operation. All necessary steps
must be completed within 30 s. The demand to access is indicated on fast
fl ashing (3 Hz) output 48. When the required number of interruptions on the
LC is completed the lamp goes off and the contacts K1 and K2 close.
Machine contact
Position of press is monitored through a N.C. machine contact as feedback
connected to S41-S42. Contact opens depending on press position.
Possible settings
Stepping operation
Switch 10: Number of steps
0
1
2
3
4 - 9
S
wit
ch 1
6
Stepping operation, contact type 1,
Start-sequence: stepping and start
selec
table b
y key swit
ch
1 st
ep
2 st
ep
3 st
ep
not allo
w
ed (fault 5)
7
Stepping operation, contact type 2,
Start-sequence: stepping and start
8
Stepping operation, contact type 1,
Start-sequence: start and stepping
9
Stepping operation, contact type 2,
Start-sequence: start and stepping
Start sequence: 2 steps and start button
Start sequence: start button and 2 steps
M8046_a
Power supply
(A1/A2)
Start button (S43/S44)
LC 1 (S12/S14)
LC 2 (S22/S24) and/or
LC 3 (S32/S34)
K1, K2
(13-14, 23-24, 33-34)
wait for access (48)
wait for start (58)
: on
: flashing 1Hz
: dark
: flashing 3Hz
M8047_a
Power supply
(A1/A2)
Start button (S43/S44)
LC 1 (S12/S14)
LC 2 (S22/S24) and/or
LC 3 (S32/S34)
K1, K2
(13-14, 23-24, 33-34)
wait for access (48)
wait for start (58)
: on
: flashing 1Hz
: dark
: flashing 3Hz
