Omron D40A-G9SX-NS Brochure page 27

23. Logical AND connections between Units (Refer to "Functions" on
page 17.)
1. To use logical AND connection inputs, enable the logical AND
connection input for the G9SX-NS@ that will receive the inputs.
2. Connect the logical AND connection inputs appropriately to the
logical AND connection outputs of the G9SX-@.
3. When configuring the safety system, be sure to consider that
the delay of response time caused by logical AND connection
does not degrade the safety functions of the system. (Refer to
"Response Time and Operating Time" on page 10.)
4. Use 2-conductor cabtire cable or shielded cable for logical AND
connect ions between Units.
24. To determine safety distance to hazards, take into account the
delay of safety outputs caused by the following time:
1. Response time of safety inputs
2. Response time of D40A Non-contact Door Switch inputs
3. Response time of logical AND connection input
(Refer to "Response Time and Operating Time" on page 10.)
4. Preset OFF-delay time
5. Accuracy of OFF-delay time
25. Start the rest of the system after 5 s or longer has passed since
applying supply voltage to all G9SX-@ in the system.
26. Be sure to ground the A2 terminal of the power supply to help
prevent malfunctions caused by noise. Also, connect a surge
absorber to each end of the coil on inductive loads to reduce noise
generation. When sharing a power supply with a Light Curtain,
use a DC power supply that will not fail for a momentary power
interruption of 20 ms or less.
27. Devices connected to the G9SX-NS may operate unexpectedly.
When replacing the G9SX-NS, disconnect it from power supply.
28. Adhesion of solvent
Do not allow organic solvents, such as alcohol, thinner,
trichloroethane, or gasoline, to come into contact with the product.
Such solvents make the markings on G9SX-NS illegible and
cause deterioration of parts.
29. Do not mix AC and DC circuits for contact outputs in a single
G9SX-EX@-@. When using AC and DC circuits, connect at least
two G9SX-EX@-@ Units and use them respectively as dedicated
DC-circuit and AC-circuit contact outputs.
30. Safety Application Controller's Relay durability depends greatly
on the switching condition. Confirm the actual conditions of
operation in which the Relay will be used in order to make sure the
permissible number of switching operations.
When the accumulated number of operation exceeds its
permissible range, it can cause failure of reset of safety control
circuit. In such case, please replace the Relay or the Safety
Application Controller immediately.
If the Relay or the Safety Application Controller is used
continuously without replacing, then it can lead to loss of safety
function.
Switch and Actuator Operation
Switch and Actuator Mounting Directions
Switch
Actuator
Switch and Actuator Operating Directions
Correct Correct
Safety Category
(EN 954-1)
When used in combination with the G9SX-NS@, the D40A can be
used for the environments corresponding to safety category 3 as
required by EN 954-1. The settings are determined by circuit
examples provided by OMRON, however, and may not be applicable
depending on the operating conditions.
Safety categories are determined for the safety control system as a
whole. You must confirm conformity for the entire system.
To conform with Safety Category 3 (EN954-1):
1. Input two channels for the external inputs (T11-T12, T21-T22).
2. Use switches with direct opening mechanisms for external inputs
(T11-T12, T21-T22).
When using limit switches, use at least one switch with direct
opening mechanisms for an input.
3. Connect D40A Switches for Non-contact Door Switch input
terminals (D1, D2, D3, D4).
4. Input the contactor's NC signal between T31 and T32 (manual
reset) or between T31 and T33 (auto reset). Refer to "Application
Examples" on page 22.
5. The A2 terminal must be grounded.
Approved Standards
D40A-@/G9SX-NS@/G9SX-NSA@
• Approved by TÜV SÜD
EN 50178
EN 1088
IEC/EN 60204-1
EN 954-1 Cat. 3
IEC/EN 61508 SIL3
IEC/EN 60947-5-2
IEC/EN 60947-5-3 PDF-M
• Approved by UL
UL 508
• CAN/CSA C22.2 No.14
• KOSHA certification
D40A/G9SX-NS
Switch
Actuator
Correct Incorrect
27