D40ML Series
Safety,
Technology
& Innovation
Operating Instructions for D40ML Series
IMPORTANT NOTE: Read and understand these instructions before installing, operating, or maintaining this equipment. The product is designed to
be a component of a safety oriented control system. It is the responsibility of each user to ensure the correct overall functionality of its systems and
machines. Omron STI its subsidiaries and affiliates, cannot guarantee all of the characteristics of a given system or product not supplied by Omron
STI.
WARNING: Do not defeat, tamper with, remove or bypass this unit. Severe injury to personnel could result.
D40ML Heavy Duty Switch Dimensions (mm)
D40ML Medium Duty Switch Dimensions (mm)
Operation:
All D40ML series safety switches are designed to conform to EN60947-5-3 and be used as directed by ISO14119, EN ISO12100 and EN60204-1. They have
coded RFID sensing which provides a wide (>10mm) sensing distance and provide a high tolerance to misalignment after sensing. They can operate in extreme
environments of temperature and moisture. The switches are provided factory coded either uniquely or by series master code.
Installation:
• Installation of all D40ML series safety switches must be in accordance with a risk assessment for the individual application.
• The use of a safety relay is required for monitoring RFID coded switches. These relays monitor two redundant circuits as per ISO13849-1 for up to
PLe/Category 4 protection.
• D40ML series switches are designed to operate with most dual channel safety relays to satisfy EN60947-5-3.
• M5 mounting bolts must be used to mount the switches. Tightening torque for mounting bolts to ensure reliable fixing is 1.0 Nm. Always mount on non-ferrous
materials.
• Do not mount adjacent switches or actuators closer than 30mm.
• To achieve nominal holding force ensure face-to-face alignment of magnetic parts.
• After installation always check each switch function by opening and closing each guard individually in turn and ensuring that the Green LED on the switch and
the LEDs on the safety relay are illuminated when the switch is closed and are extinguished when the switch is open. Check that the machine stops and
cannot be re-started when each switch is open.
Maintenance/Safety Checks:
Monthly: Check alignment of actuator and look for signs of mechanical damage to the switch casing or cables.
The safety functions and mechanics must be tested regularly. For applications were infrequent guard access is foreseeable, the system must have a manual
function test to detect a possible accumulation of faults at least once per month for PLe Cat3/4 or once per year for PLd Cat3 (ISO13849-1). Where possible it is
recommended that the control system of the machine demands and monitors these tests, and stops or prevents the machine from starting if the test is not done.
(ISO14119). Check that the machine stops and cannot be re-started when each switch is open.
NOTE: The safety outputs will only close when the actuator is in place and the lock magnet is energized. Forcing open of the lock will cause the safety outputs to
open.
IMPORTANT: The guard lock function is power-on applied and power-off released. It may not be used for person protection on machines with rundown. The Risk
Assessment for the particular application should include the risk of spare actuators. Spare actuators should not be readily available and must be securely
controlled. Record any RFID codes as required by factory rules or with reference to any risk assessment for the particular application and user location.
