Safe Disable Input Function - YASKAWA L1000E Quick Start Manual

C Standards Compliance
L1-02: Motor Overload Protection Time
Setting Range: 0.1 to 5.0 min
Factory Default: 1.0 min
Parameter L1-02 determines how long the motor is allowed to operate before the oL1 fault occurs when the drive is
running at 60 Hz and at 150% of the full load amp rating (E2-01/E5-03) of the motor. Adjusting the value of L1-02 can
shift the set of oL1 curves up the y axis of the diagram below, but will not change the shape of the curves.
Figure 95
Operation time (minutes)
10
7
3
1
0.4
0.1
Figure 104 Protection Operation Time for General Purpose Motors at the Rated Output Frequency

◆ 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 IEC61800-5-2.
Safe Disable inputs have been designed to meet the requirements of the ISO13849-1, Cat. 3 PLd and IEC61508, SIL2.
A Safe Disable Status Monitor for error detection in the safety circuit is also provided.
Inputs / Outputs
Operation Time
Failure Probability
Performance Level
Precautions
■
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., EN954/ISO13849, IEC61508, EN/IEC62061).
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.
230
0 100
Two Safe Disable inputs and one EDM output according to ISO13849-1 Cat.3 PLd,
IEC61508 SIL2.
Time from input open to drive output stop is less than 1 ms.
Demand Rate Low
PFD = 5.15E
Demand Rate High or
PFH = 1.2E
Continuous
The Safe Disable inputs satisfy all requirements of Performance Level (PL) d according to
ISO13849-1 (DC from EDM considered).
Cold start
(Characteristics when an overload occurs
at a complete stop)
Hot start
(Characteristics when an overload occurs
during continuous operation at 100%)
Motor current (%)
150 200
E2-01 = 100% motor current
-5
-9
YASKAWA TOEPYAIL1E01A YASKAWA AC Drive L1000E Quick Start Guide