10 EN81-1 Conform Circuit with one Motor Contactor
YASKAWA Europe
TOEP C710606 50B - AC Drive L1000V - Quick Start Guide
EN 51
10
EN81-1 Conform Circuit with one Motor
Contactor
Installation
The safe disable circuit can be used to install the drive in an elevator system using only one
motor contactor instead of two. In such a system the following guidelines have to be
followed for compliance to EN81-1:1998:
• The circuit must be designed so that the input H1 is opened and the drive output shuts off
when the safety chain is interrupted.
• A drive digital output must be programmed as Safe Disable Status (H2-
=58). This
feedback signal must be implemented in the contactor supervision circuit of the controller
that prevents a restart in case of a fault in the Safe Disable circuit or the motor contactor.
This digital output function is availible on drives with software version 7011 and later.
• All contactors and wiring must be selected and installed in compliance with EN81-1:1998
The figure below shows a wiring example.
Note:
1.
The drive output will shut off immediately when input H1 is opened. In order to
prevent uncontrolled movement of the elevator, the circuit should be designed so that
the brake applies instantly when terminal H1 is opened.
2.
The drive output can only be activated when neither an Up nor a Down command is
active, i.e. terminal H1 must be closed prior to setting the Up/Down command.
Safety Chain
Circuit
Elevator Controller
Contactor Control
Command
Contactor Check
(Restart Permission)
K01
24 Vdc
K1
H1
Up/Down;
Speed selection; ...
Yaskawa
CIMR-LCxVxxxx
K2
M
HC
Safe Disable Monitor (NC)
