SICK EtherCAT microScan3 User Manual

First, the operator must press a reset pushbutton to return the protective device to
monit
oring status. Then, in a second step, the operator can restart the machine.
Depending on applicable national regulations, a restart interlock must be available if it
is possible to stand behind the protective field.
DANGER
Hazard due to lack of effectiveness of the protective device
The dangerous state may not be stopped in the event of non-compliance.
If a protective field is interrupted, the safety output switches to the OFF state for at least
80ms, even if the interruption is shorter than that time. It is possible that the control
(FSoE master) will not detect the OFF state in the event of a very short protective field
interruption if the watchdog time of the FSoE connection is configured to be greater
than 80 ms.
The internal restart interlock of the safety laser scanner must be used to end the
dangerous state.
►
If the watchdog time of the FSoE connection is longer than 80ms, use the internal
restart interlock of the safety laser scanner.
Reset
T
he reset brings the protective device back to the monitoring state after it has sent
a stop command. The reset also quits the start-up or restart interlock of a protective
device, so that the machine can be restarted in a second step.
The reset must only be possible, when all safety functions and protective devices are
functional.
The reset of the protective device must not introduce any movement or dangerous
situations itself. The machine is only permitted to start after the reset once a separate
start command has been sent.
•
Manual resets are performed using a separate, manually operated device, such as
a reset pushbutton.
•
Automatic resets by the protective device are only permitted in special cases, if
one of the following conditions is met:
°
It must not be possible for people to be in the hazardous area without
triggering the protective device.
°
It must be ensured that no people are in the hazardous area during or after
the reset.
Internal restart interlock
Eac
h safety output of the safety laser scanner is equipped with a configurable internal
restart interlock.
With safety outputs via the network, resetting is done via a network signal.
When the internal restart interlock is used, the following sequence is the result for the
machine operator:
1 A safety output of the safety laser scanner switches to the OFF state, if there is an
interruption in the protective field.
2 The safety output remains in the OFF state when there is no longer an object in
the protective field.
3 The safety output only switches back to the ON state when the operator presses
the reset pushbutton, which is outside the hazardous area. If there is an object in
the protective field when the reset pushbutton is pressed, the safety output stays
in the OFF state.
4 After the reset, the operator can restart the machine in a second step.
PROJECT PLANNING 4
8025220/1L9Q/2023-08-14 | SICK O P E R A T I N G I N S T R U C T I O N S | microScan3 – EtherCAT®
63
Subject to change without notice

SICK EtherCAT microScan3 Specifications

General

Scanning angle	275°
Interfaces	EtherCAT
Protection class	IP65
Supply voltage	24 V DC
Resolution for protective field	30 mm
Operating voltage	24 V DC
Scanning range	5.5 m
Number of fields	128
Number of monitoring cases	128
Response time	30 ms
Operating temperature	0 °C to 50 °C
Field of application	Industrial safety
Light source	Infrared laser, 905 nm
Connection type	M12
Weight	1.2 kg