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Category of EN 954-1
In the condition shown in Application Examples, G9SX can be used
for the corresponding categories up to category 4.
This does NOT mean that G9SX can always be used for required
category under all the similar conditions and situations.
Conformity to the categories must be assessed as a whole system.
When using G9SX for safety categories, be sure to confirm the
conformity as a whole system.
1. Input the signals to both of the Safety inputs (T11-T12 and T21-
T22).
2. Input a signal to the Safety inputs (T11-T12 and T21-T22) through
switches with Direct Opening Mechanism.
When using limit switches, at least one of them must have Direct
Opening Mechanism.
3. When connecting Safety sensor with G9SX, use TYPE 4 safety
sensor.
4. Input the signal through a NC contact of the contactor to
Feedback/Reset input (T31-T32 for manual reset or T31-T33 for
auto reset).(Refer to Application Examples)
5. Keep Cross fault detection mode input (Y1) open. However, when
connecting devices with self-diagnosis function, such as safety
sensors, apply 24VDC to Y1.
6. Be sure to Connect A2 to ground.
7. When using a G9SX-EX-@-@ Expansion Unit, connect fuses with
a current rating of 3.15 A max. to the safety relay outputs to
prevent the contacts from welding.
Compliance with International Standards
G9SX-AD-@/G9SX-ADA-@/G9SX-BC-@/G9SX-EX-@
• Approved by TÜV Product Service
EN50178
IEC/EN60204-1
EN954-1 Cat.4
IEC/EN61508 SIL3
IEC/EN61000-6-2
IEC/EN61000-6-4
• Approved by UL
UL508
UL1998
NFPA79
IEC61508
• Approved by CSA
CAN/CSA C22.2 No.142
G9SX
Flexible Safety Unit
19
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