Elgo LIMAX33 CP-00 SERIES, Owners & Safety Manual

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Installation and First Start-Up
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10.4.10 Connection of the EN81-21-Input
The “EN81-21-input” must be connected to the “EN81-21-signal”. In normal lift operation this signal should be
HIGH (24 V). This signal must be LOW (resp. open input) if a door giving access to the car roof or the shaft pit
is opened by a key.
After this signal became LOW, it is only allowed to become HIGH level if EN81-21 §5.5.3.2.1 a.) – d.) are
fulfilled. This demand must be fulfilled externally (not in scope of LIMAX33 CP-00).
10.4.11 Connection of the „Working Platform“ Input
The Working Platform input must be connected by an external switch that is wired to 24 V on the other side.
During normal lift operation this switch is closed (24 V on the input). A soon the user opens this switch, the
LIMAX33 CP-00 opens all actuators and therefore each lift movement is prevented.
10.4.12 Connection of the „Reset“-Input
The “Reset”-Input may be connected by an external push-button, wired to 24 V on the other side
(if the user may perform a system-reset by operating the push button).
REMARK:
A System Reset can also be done by CANopen; therefore connecting of the RESET-Input is
optionally.
10.4.13 Connection of the CAN Bus
The LIMAX33 CP-00 CAN bus connections CAN HIGH and CAN LOW must be connected to the CAN bus of
the control unit.
The shield for the CAN bus is connected on the device side via the housing to protection earth (see also section

10.4.14). If it can be ensured that there is a protection earth on the control side, in which no potential differ-
ences can occur to the contact 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 opti-
mal interference suppression.
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.
10.4.14 Earthing Connector
The LIMAX33 CP-00 housing is equipped with an earthing lug. This needs to be connected via a suitable earth
cable with protection earth. The earth cable should be equipped with a suitable flat plug for connection to the
earthing lug.
Ideally a cable with a recommended cross-section of 4 mm² is used. This is not included 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.