D.6 En81-20 Conform Circuit With No Motor Contactor - YASKAWA L1000A Technical Manual

D.6 EN81-20 Conform Circuit with No Motor Contactor

The safe disable circuit can be utilized to install the drive models CIMR-LF in an elevator system with no motor
contactor. In such a system, the following guidelines must be followed to comply with EN81-20:
• The circuit must be designed so that the inputs H1 or H2 are opened and the drive output shuts off when the safety chain
is interrupted.
• The safe disable inputs H1 and H2 must be used to enable/disable the drive. The input logic must be set to Source
Mode. Refer to Sinking/Sourcing Mode Selection for Safe Disable Inputs on page 85
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 or H2 must be closed prior to setting the Up/Down command.
3. A drive digital output must be programmed as Safe Disable feedback (H2- = 58). This feedback signal can be implemented in the
contactor supervision circuit of the controller that monitors a fault in the Safe Disable circuit.
YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual
Safety Chain
Circuit
Drive Ready
Command
K01
K1
K2
Drive
Yaskawa
CIMR-L
D.6 EN81-20 Conform Circuit with No Motor Contactor
Elevator Controller
Status Monitor
24 Vdc
H2 H1 HC Up/Down;
Speed
selection; ...
Safe Disable Monitor
(H2- = 58)
F
M
for details on setting jumper S3.
D
499