User manual of EC160 elevator intelligent integrated machine Installation and wiring
37
If the parallel distance between the communication and power cables is longer than 5m, there
should be a 30cm space to prevent power interference. If the wiring space is limited and cannot
satisfy the requirements, use the shielded twisted pair and carry out single-point grounding.
Grounding of the hoistway cable and the trailing cable: separate the electric wires (including door
operator power, safety circuit, door lock circuit and lighting circuit, etc.) from the electronic wires
(including communication cables, DC 0V, DC 24V, leveling dry-reed, forced deceleration switches
of terminal stop, limit switches of terminal stop, etc.) for hoistway cable and the trailing cable. The
communication cables must use twisted cables with the distance less than 30mm. If possible, use
the shielded twisted pair and ground the shielded layer.
If the electric wires and electronic wires are configured in parallel, put
the electric wires together on one side and the electronic wires together
on the other side. Use the grounding wires to separate them.
Do not plug RS-485 and CAN communication plug (24V+, 24V-, MODH
and MODL; 24V+, 24V-, CANH and CANL) when power on, otherwise
permanent damage to the components may occur.
Abnormal communication may occur if setting RS-485 and CAN
terminal resistor improperly.
In general, the resistance between MODH and MODL, CANH and
CANL is about 60Ω.
RS-485 and CAN communication cable shall be twisted pairs and the
twisted distance is less than 30mm.
RS-485 and CAN bus communication cable shall keep away from
electric wires; the communication power cable, communication cable
and electric wire can not be twisted.
RS-485 and CAN communication cable can not connect with other
circuit or grounding wire.
The specific RS-485 and CAN communication power cable shall be
separated from 24V power of the controller and cannot be used for
other purposes or connect with other loads.
The outside/inside calling board is collector open-drain output and only
applied for loads such as LEDs but not for lamps. If the elevator is
made from old ones, change the button.
Refer to the electrical diagram for detailed configuration.