En81-1 Conform Circuit With One Motor Contactor - YASKAWA L1000A Quick Start Manual

10

EN81-1 Conform Circuit with one Motor Contactor


Installation
The safe disable circuit can be utilized to install the drive in an elevator system using only one motor contactor instead of
two. In such a system the following guidelines must be followed to comply with EN81-1:1998:
• The circuit must be designed so that the inputs H1 and H2 are 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.
• All contactors and wiring must be selected and installed in compliance with EN81-1:1998.
• The safe disable inputs H1 and H2 must be used to enable/disable the drive. The input logic must be set to Source
Mode, i.e. jumper S3 must be set like shown below.
Drive Internal Power Supply
Jumper S3
HC
H1
H2
The figure below shows a wiring example.
Note: 1.
The drive output will immediately shut off when either of the inputs H1 or H2 is opened. In this case the brake should apply
immediately in order to prevent uncontrolled movement of the elevator.
2.
Terminals H1 and H2 must be closed prior to setting the Up/Down command.
YASKAWA ELECTRIC TOEP C710616 33G AC Drive L1000A - Quick Start Guide
24 Vdc
Safety Chain
Circuit
Contactor Close
Command
K1
Yaskawa
CIMR-L
K2
10 EN81-1 Conform Circuit with one Motor Contactor
External 24 Vdc Power Supply
Jumper S3
External
24 Vdc
HC
H1
H2
Elevator Controller
Contactor Check
(Restart Permission)
K01
24 Vdc
H1 H2 HC
Up/Down;
Speed selection; ...
Safe Disable Monitor
(H2- = 58)
M
24 Vdc
EN 51