YASKAWA L1000H - Safe Disable Input Function

9 Safe Disable Input Function
YASKAWA Europe TOEP C710616 92D AC Drive L1000H Quick Start Guide 42
9 Safe Disable Input Function
This section briefly explains the Safe Disable function and how to use it in an elevator installation. Refer to the Technical
Manual or contact YASKAWA for more detailed information.
 Safety Standards
The TUV mark indicates compliance with safety standards.
Figure 1
Figure 1 TUV mark
 Standard Models (CIMR-LA)
 Models in Compliance with IEC/EN 61508 SIL3 (CIMR-LF)
The Safe Disable function is in compliance with these standards.
 Specifications
The Safe Disable circuit consists of two independent hardware input channels that can block the output transistors. It
provides 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.
Safety Standards Applicable Harmonized Standards
Functional Safety
IEC/EN 61508 series (SIL2)
IEC/EN 61800-5-2 (SIL2)
Safety of Machinery ISO/EN ISO 13849-1/AC: 2009 (PL d (Cat.3))
EMC IEC/EN 61800-3: 2004
Safety Standards Applicable Harmonized Standards
Functional Safety
IEC/EN 61508 series: 2010 (SIL3)
IEC/EN 62061: 2005 (SILCL3)
IEC/EN 61800-5-2: 2007 (SIL3)
Safety of Machinery ISO/EN ISO 13849-1/AC: 2009 (PL e (Cat.3))
EMC IEC/EN 61326-3-1: 2008 (EMC-related)
Inputs / Outputs
• Inputs: 2
Safe Disable inputs H1, H2
Signal ON level: 18 to 28 Vdc
Signal OFF level: -4 to 4 Vdc
• Output: 1
Safe Disable Monitor output EDM (DM+, DM-)
Response Time from Input Open to Drive Output Stop
CIMR-LA: less than 1 ms
CIMR-LF: less than 3 ms
Response Time from Input Open of H1 and H2
Terminals to EDM
CIMR-LA: less than 1 ms
CIMR-LF: less than 4 ms
Failure Probability
Demand Rate Low
CIMR-LA: PFD = 5.15E
-5
CIMR-LF: PFD = 8.14E
-6
Demand Rate High or Continuous
CIMR-LA: PFH = 1.2E
-9
CIMR-LF: PFH = 1.96E
-9
Performance Level
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
HFT (Hardware Fault Tolerance) N = 1
Classification of Subsystem Type B