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Installation
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Figure 17: Connection of door zone indicator
Table 9: Wire assignment door zone indication
14
white-yellow
DZ-SUP (Door zone indicator supply)
15
yellow-brown
DZ (Door zone indicator output)
8.3.14
Connection CAN bus
The LIMAX Safe SG/SC CAN bus connection CAN High and CAN Low is connected to the CAN bus of the con-
trol. The shield may be optionally connected to protection earth on the side of the lift control. See Figure 14 for
further details.
Table 10: Wire assignment CAN
Pin on S99 Wire colour on PIO cable Function
3
yellow
CAN HIGH
4
green
CAN LOW
5
-
shield
8.3.15
Connection of earthing connector
The LIMAX33 RED/LIMAX44 RED sensor and the Safe Box have both an earthing lug. These lugs need to be
connected with protection earth via a suitable earth cable. The earth cable should be equipped with a suitable
flat plug for connection to the earthing connector. The earth cables for the LIMAX33 RED/LIMAX44 RED sensor
and for the Safe Box should be comparable in terms of cross-section, material and length. Ideally an identical
cable with a recommended cross-section of 4 mm² is used for the box and the LIMAX 33 RED. This is not in-
cluded in the scope of delivery but can be ordered as an accessory.
To connect the earth cable to the earthing lug, the cable is provided on one side with a flat plug sleeve and on
the other side with a ring cable lug for placing on the protection earth.
Note: For protection against electrical shock, a cable with 0.75 mm² would be sufficient, but to optimize the
immunity to interference, 4 mm² is recommended.
The shield for the CAN bus is connected on the device side via the housing to protection earth. If it can be en-
sured that there is a protection earth on the control side, in which no potential differences can occur to the con-
tact point of the device-side protection earth, and thus no ground loops are formed, the shield must also be
connected to the protection earth on the control side. This is an ideal solution for optimal interference suppres-
sion.
If the ground loops cannot be excluded with certainty, the shield must not be connected on the control side in
order to avoid EMC-induced faults of the operation.
Safe Box
DZ-SUP
DZ
+12 V battery
GND