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Safety Interlocks electromagnetic / Safety Switch with interlocking function
6.2.2. Latching Force Indication
If supply power to the SD4I is switched on with the door open, the yellow LED indicates the selected latching
force level for 10 seconds by blinking briefly one or more times (e.g. 4 blinks = 4th latching force level, i.e.
approx. 60 N). At level 5, the last code is incomplete (5 flashes with one complete and one incomplete repeat
of 3 flashes).
Number of Blink Pulses
SD4ICSx3SE89 Latching Force
SD4ICSx4SE89 Latching Force
1
ca. 30 N
ca. 45 N
2
ca. 40 N
ca. 55 N
3
ca. 50 N
ca. 65 N
4
ca. 60 N
ca. 75 N
5
ca. 70 N
ca. 85 N
6
ca. 80 N
ca. 95 N
7
ca. 90 N
ca. 105 N
8
ca. 100 N
ca. 115 N
Table 1: Latching Force Levels
NOTE!
The actual latching forces may deviate from the specified values owing to the different
influences (e.g. angled position of actuator, contamination or damage to metal surface, etc.).
ATTENTION!
•
When the guard system is opened for the first time from the locked status, higher latching
forces may be experienced on account of residual magnetism.
6.3. Forcible Separation of the Guard Locking Device and the Actuator
• Only in connection with "Guard locking device monitored" (SD4ICS0xSE89).
• The Guard Locking Device has a maximum latching force of 500 N.
• The safety door opens in the case of impermissible, forcible separation of the actuator and the lock, and
the enabling paths are switched off within 150 ms (yellow and red LEDs blink alternately).
• In order to return the system to the operating state, the door must first be closed and the magnet must be
deactivated and then reactivated. Now the yellow and red LEDs blink simultaneously. When the door is
closed, a manipulation safety period of 10 minutes must elapse before the red LED goes out. After deacti-
vating and reactivating the magnet, the system is once again ready for operation (Neither the actuator nor
the lock are damaged!).
6.4. Function Test
The safety function of the Guard Locking Device must be tested. The following must be assured in advance:
• Check maximum lateral offset of the actuator unit and the Guard Locking Device.
• Check maximum angular offset (see “Installation Instructions”).
• The cable gland and the terminals must be fully intact.
• Check the switch housing for damage.
• Remove any contamination.
