Yaskawa CIMR-LU Drives - Manual (Page 236)

C Standards Compliance
236 YASKAWA ELECTRIC TOEP C710616 38F YASKAWA AC Drive L1000A Quick Start Guide
L1-03 Motor Overload Alarm Operation Selection
L1-04 Motor Overload Fault Operation Selection
◆ Safe Disable Input Function
This section explains the Safe Disable function and how to use it in an elevator installation. Contact Yaskawa if more
information is required.
■ Specifications
The Safe Disable inputs provide a stop function in compliance with “Safe Torque Off” as defined in the IEC/EN 61800-5-
2. Safe Disable inputs have been designed to meet the requirements of the ISO/EN 13849-1, Cat. 3 PLd and IEC/EN
61508, SIL2.
A Safe Disable Status Monitor for error detection in the safety circuit is also provided.
■ Precautions
Note: Terminals H1, H2, DM+, and DM- on 600 V class models are designed to the functionality, but are not certified to IEC/EN
61800-5-1, ISO/EN 13849 Cat. 3, IEC/EN 61508 SIL2, Insulation coordination: class 1.
DANGER! Sudden Movement Hazard. Improper use of the Safe Disable function will result in serious injury or death. Make sure the
entire system or machinery uses the Safe Disable function in compliance with safety requirements. When implementing the Safe
Disable function into the safety system of a machine, a thorough risk assessment for the whole system must be carried out to ensure it
complies with relevant safety norms (e.g., ISO/EN 13849, IEC/EN 61508, IEC/EN 62061).
DANGER! Sudden Movement Hazard. When using a PM motor, even if the drive output is shut off by the Safe Disable function, a
break down of two output transistors can cause current to flow through the motor winding, resulting in a rotor movement for a maximum
angle of 180 degrees (electrically). Ensure this condition will not affect the safety of the application when using the Safe Disable
function. Failure to comply will result in death or serious injury.
DANGER! Electrical Shock Hazard. The Safe Disable function can switch off the drive output, but does not cut the drive power supply
and cannot electrically isolate the drive output from the input. Always shut off the drive power supply when performing maintenance or
installations on the drive input side as well as the drive output side. Failure to comply will result in death or serious injury.
WARNING! Sudden Movement Hazard. When using the Safe Disable inputs, make sure to remove the wire links between terminals
H1, H2, and HC that were installed prior to shipment. Failing to do so will keep the Safe Disable circuit from operating properly and can
cause injury or even death.
Setting Description
0 Ramp to Stop
1 Coast to Stop
2 Fast-Stop
3 Alarm Only (default setting)
Setting Description
0 Ramp to Stop
1 Coast to Stop (default setting)
2 Fast-Stop
Inputs / Outputs
Two Safe Disable inputs and one EDM output according to ISO/EN 13849-1 Cat.3 PLd,
IEC/EN 61508 SIL2.
<1>
Operation Time
<1> Terminals H1, H2, DM+, and DM- on 600 V class models are designed to the functionality, but are not certified to IEC/EN 61800-5-1,ISO/EN
13849 Cat.3, IEC/EN 61508 SIL2, Insulation coordination: class 1.
Time from input open to drive output stop is less than 1 ms.
Failure Probability
Demand Rate Low PFD = 5.15E -5
Demand Rate High or
Continuous
PFH = 1.2E -9
Performance Level
The Safe Disable inputs satisfy all requirements of Performance Level (PL) d according to
ISO/EN 13849-1 (DC from EDM considered).
<1>
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