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GX-[]D16[]1 / OC1601

Digital I/O Terminal 2-tier Terminal Block Type

GX-[]D16[]1 / OC1601

High-speed digital I/O terminal with the screw type terminal block for EtherCAT communications.

Related Contents

last update: May 9, 2019

General Specifications

Item Specification
Unit power supply voltage 20.4 to 26.4 VDC (24 VDC -15% to +10%)
I/O power supply voltage 20.4 to 26.4 VDC (24 VDC -15% to +10%)
Noise resistance Conforms to IEC 61000-4-4, 2 kV (power line)
Vibration resistance 10 to 60 Hz with amplitude of 0.7 mm, 60 to 150Hz and 50 m/s2 in X, Y,
and Z directions for 80 minutes
＜Relay Output Unit GX-OC1601 only＞
10 to 55 Hz with double-amplitude of 0.7 mm
Impact resistance 150 m/s2 with amplitude of 0.7 mm
＜Relay Output Unit GX-OC1601 only＞
100 m/s2 (3 times each in 6 directions on 3 axes)
Dielectric strength 600 VAC (between isolated circuits)
Isolation resistance 20 MΩ or more (between isolated circuits)
Ambient operating temperature -10 to 55 °C
Operating humidity 25% to 85% (with no condensation)
Operating atmosphere No corrosive gases
Storage temperature -25 to 65 °C
Storage humidity 25% to 85% (with no condensation)
Terminal block screws
tightening torque *		 M3 wiring screws: 0.5 Nm
M3 terminal block mounting screws: 0.5 Nm
Mounting method 35-mm DIN track mounting

* Applicable only to 2-tier terminal block and 3-tier terminal block type slaves.

Input Section Specifications

16-point Input Terminals

Item Specification
GX-ID1611 GX-ID1621
Input capacity 16 points
Internal I/O common NPN PNP
ON voltage 15 VDC min. (between each input terminal
and the V terminal)		 15 VDC min. (between each input terminal
and the G terminal)
OFF voltage 5 VDC max. (between each input terminal
and the V terminal)		 5 VDC max. (between each input terminal
and the G terminal)
OFF current 1.0 mA max.
Input current 6.0 mA max./input (at 24-VDC)
3.0 mA min./input (at 17-VDC)
ON delay 0.1 ms max.
OFF delay 0.2 ms max.
Input filter value Without filter, 0.5 ms, 1 ms, 2 ms, 4 ms, 8 ms, 16 ms, 32 ms (Default setting: 1 ms)
Number of circuits per
common		 16 inputs/common
Input indicators LED display (yellow)
Isolation method Photocoupler isolation
I/O power supply method Supply by I/O power supply
Unit power supply current
consumption		 90 mA max. (for 20.4 to 26.4-VDC power supply voltage)
I/O power supply current
consumption		 5 mA max. (for 20.4 to 26.4-VDC power supply voltage)
Weight 180 g max.
Expansion functions Enabled
Short-circuit protection
function		 No

Note: For the I/O power supply current value to V and G terminals, refer to GX Series Operation Manual (Cat. No. W488).

Output Section Specifications

16-point Output Terminals

Item Specification
GX-OD1611 GX-OD1621
Output capacity 16 points
Rated current (ON current) 0.5 A/output, 4.0 A/common
Internal I/O common NPN PNP
Residual voltage 1.2 V max. (0.5 ADC, between each
output terminal and the G terminal)		 1.2 V max. (0.5 ADC, between each
output terminal and the V terminal)
Leakage current 0.1 mA max.
ON delay 0.5 ms max.
OFF delay 1.5 ms max.
Number of circuits per common 16 points/common
Output indicators LED display (yellow)
Isolation method Photocoupler isolation
I/O power supply method Supply by I/O power supply
Unit power supply current consumption 90 mA max. (for 20.4 to 26.4-VDC power supply voltage)
I/O power supply current consumption 5 mA max. (for 20.4 to 26.4-VDC power supply voltage)
Weight 180 g max.
Expansion functions Enabled
Output handling for communications errors Select either hold or clear
Short-circuit protection function No

Note: For the I/O power supply current value to V and G terminals, refer to GX Series Operation Manual (Cat. No. W488).

Relay 16-point Output Terminals

Item Specification
GX-OC1601
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
Output handling for communications errors Select either hold or clear
Short-circuit protection function No

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. Also, 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, and 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 equipment must be checked under actual operating conditions.

Input and Output Section Specifications

8-point Input and 8-point output Terminals

General Specifications

Item Specification
GX-MD1611 GX-MD1621
Internal I/O common NPN PNP
I/O indicators LED display (yellow)
Unit power supply current consumption 80 mA max. (for 20.4 to 26.4-VDC power supply voltage)
Weight 190 g max.
Expansion functions No
Short-circuit protection function No

Input Section

Item Specification
GX-MD1611 GX-MD1621
Input capacity 8 points
ON voltage 15 VDC min. (between each input terminal
and the V terminal)		 15 VDC min. (between each input terminal
and the G terminal)
OFF voltage 5 VDC max. (between each input terminal
and the V terminal)		 5 VDC max. (between each input terminal
and the G terminal)
OFF current 1.0 mA max.
Input current 6.0 mA max./input (at 24-VDC)
3.0 mA min./input (at 17-VDC)
ON delay 0.1 ms max.
OFF delay 0.2 ms max.
Input filter value Without filter, 0.5 ms, 1 ms, 2 ms, 4 ms, 8 ms, 16 ms, 32 ms (Default setting: 1 ms)
Number of circuits per
common		 8 points/common
Isolation method Photocoupler isolation
I/O power supply method Supply by I/O power supply
I/O power supply current
consumption		 5 mA max. (for 20.4 to 26.4-VDC power supply voltage)

Output Section

Item Specification
GX-MD1611 GX-MD1621
Output capacity 8 points
Rated output current 0.5 A/output, 2.0 A/common
Residual voltage 1.2 V max. (0.5 ADC, between each
output terminal and the G terminal)		 1.2 V max. (0.5 ADC, between each
output terminal and the V terminal)
Leakage current 0.1 mA max.
ON delay 0.5 ms max.
OFF delay 1.5 ms max.
Number of circuits per common 8 points/common
Isolation method Photocoupler isolation
I/O power supply method Supply by I/O power supply
I/O power supply current consumption 5 mA max. (for 20.4 to 26.4-VDC power supply voltage)
Output handling for communications errors Select either hold or clear

Note: For the I/O power supply current value to V and G terminals, refer to GX Series Operation Manual (Cat. No. W488).

last update: May 9, 2019

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