5.6 Safe Disable Input
208 YASKAWA SIEPC71061753C GA500 Technical Manual
5.6 Safe Disable Input
Figure 5.22 TÜV Mark
The TÜV mark identifies that the product complies with the safety standards.
This section gives precautions to support the Safe Disable input. Contact Yaskawa for more information.
The safety function complies with the standards shown in Table 5.27.
Table 5.27 Applied Safety Standards and Unified Standards
Safety Standards Unified Standards
Functional Safety
IEC/EN 61508:2010 (SIL3)
IEC 62061:2005/AMD2:2015 (SILCL3)
EN 62061:2005/A2:2015 (SILCL3)
IEC 61800-5-2:2016 (SIL3)
EN 61800-5-2:2017 (SIL3)
Machine Safety
ISO/EN ISO 13849-1:2015 (Cat.3, PL e)
EMC
IEC 61000-6-7:2014
EN 61000-6-7:2015
IEC/EN 61326-3-1:2017
LVD
IEC 61800-5-1:2007/AMD1:2016
EN 61800-5-1:2007/A1:2017
Note:
SIL = Safety Integrity Level.
◆ Safe Disable Specifications
The Safe Disable input provides the stop function that complies with “Safe Torque Off” as specified by IEC/
EN61800-5-2. The Safe Disable input meets the requirements of ISO/EN ISO 13849-1 and IEC/EN 61508. It also
has a safety status monitor to detect safety circuit errors.
When you install the drive as a component in a system, you must make sure that the system complies with the
applicable safety standards.
Refer to Table 5.28 for safety function specifications.
Table 5.28 Safe Disable Specifications
Item Description
Input/Output
• Input: 2
Safe Disable input (H1, H2)
Signal ON level: 18 Vdc to 28 Vdc
Signal OFF level: -4 Vdc to +4 Vdc
• Output: 1
MFDO safety monitor output for external device monitor (EDM)
Response time from when the input opens to when the drive output stops 3 ms or less
Response time from when the H1 and H2 terminal inputs open to when the EDM
signal operates
30 ms or less
Failure probability
Less frequent operation request mode PFD = 1.38E
-5
Frequent operation request mode or
continuous mode
PFH = 3.35E
-9
Performance level
The Safe Disable input complies with the performance level requirements of EN ISO 13849-
1.
HFT (hardware fault tolerance) N = 1
Type of subsystem Type B
MTTF
D
High
DCavg Medium
Mission time 10 years
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