YASKAWA L1000A Quick Start Manual page 240

C Standards Compliance
■ 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 and IEC/EN 61508.
A Safe Disable Status Monitor for error detection in the safety circuit is also provided.
Inputs / Outputs
Response Time from Input Open to Drive Output
Stop
Response Time from Input Open of H1 and H2
Terminals to EDM
Failure Probability
Performance Level
HFT (Hardware Fault Tolerance)
Classification of Subsystem
<1> Terminals H1, H2, DM+, and DM- on 600 V class models are designed to the functionality, but are not certified to IEC/EN 61800-5-2, ISO/EN
13849 Cat.3, IEC/EN 61508 SIL2, Insulation coordination: class 1.
■ 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
61800-5-2, 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 and validation 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. If the motor is subjected to an external force, use a mechanical brake that meets the safety
requirements of entire system or machinery to stop the machine connected to the load. The motor will move when an external
gravitational force in the vertical axis is applied even if the Safety Disable function is in operation. Failure to comply may result in
serious injury or death.
WARNING! Sudden Movement Hazard. Connect the Safe Disable inputs to the devices in compliance with safety requirements. 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.
WARNING! All safety features (including Safe Disable) should be inspected daily and periodically. If the system is not operating
normally, there is a risk of serious personal injury.
WARNING! Only a qualified technician with a thorough understanding of the drive, the instruction manual, and safety standards should
be permitted to wire, inspect, and maintain the Safe Disable input. Failure to comply may result in serious injury or death.
238
Table 71 Specifications for Safe Disable Function
• Inputs: 2
Safe Disable inputs H1, H2
Signal ON level: 18 to 28 Vdc
Signal OFF level: -4 to 4 Vdc
• Outputs: 1
Safe Disable Monitor output EDM (DM+, DM-)
CIMR-LA: less than 1 ms
CIMR-LF: less than 3 ms
CIMR-LA: less than 1 ms
CIMR-LF: less than 4 ms
CIMR-LA: PFD = 5.15E
Demand Rate Low
CIMR-LF: PFD = 8.14E
Demand Rate High or CIMR-LA: PFH = 1.2E
Continuous CIMR-LF: PFH = 1.96E
The Safe Disable inputs satisfy the following requirements (DC from EDM considered).
CIMR-LA: Performance Level (PL) d according to ISO/EN 13849-1
CIMR-LF: Performance Level (PL) e according to ISO/EN 13849-1
N = 1
Type B
-5
-6
-9
-9
YASKAWA ELECTRIC TOEP C710616 38H YASKAWA AC Drive-L1000A Quick Start Guide
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