7 Digital I/O Slave Unit
7 - 18
GX-series EtherCAT Slave Unit User’s Manual
Precautions for Correct Use
• With a current of between 2 and 3 A (8 to 10 A per common), either ensure that the number of
points per common that simultaneously turn ON does not exceed 4 or ensure that the ambient
temperature does not exceed 45°C. There are no restrictions if the current does not exceed 2
A (8 A per common).
• The rated current is the value for assuring normal operation, but not for assuring durability of
the relays. The relay service life depends greatly on factors such as the operating
temperature, the type of load, and switching conditions. The actual relay must be checked
under actual operating conditions.
7-4-3 2-tier Terminal Block Relay Type 16-point Output Slave Unit
GX-OC1601
Specification
Item Specification
Output capacity 16 points
Mounted relays DRTA-NY5W-K
Rated load
Resistance load
250 VAC 2 A/output, common 8 A
30 VDC 2 A/output, common 8 A
Rated ON current 3 A/output
Maximum contact voltage 250 VAC, 125 VDC
Maximum contact current 3 A/output
Maximum switching
capacity
750 VAAC, 90 WDC
Minimum applicable load
(reference value)
5 VDC 1mA
Mechanical service life 20,000,000 operations min.
Electrical service life 100,000 operations min.
Number of circuits per
common
8 points/common
Output indicators LED display (yellow)
Isolation method Relay isolation
I/O power supply method
The relay drive power is supplied from the unit power
supply.
Unit power supply current
consumption
210 mA max. (for 20.4 to 26.4-VDC power supply
voltage)
Weight 290 g max.
Expansion functions Enabled
Error Mode Output Select either hold or clear.
Short-circuit protection
function
No
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