Interface Specifications > I/O Cards

DO, 8-Channel, 120 VAC/230 VAC, Isolated

The DeltaV system supports the DO, 8-channel, 120/230 VAC, Isolated card and the Series 2 DO, 8-channel, 120/230 VAC, Isolated card in Simplex mode.

Installation Notes

The I/O terminal block is recommended to provide screw terminations for field wiring for the DO, 8-channel, 120/230 VAC, Isolated card and the Series 2 DO, 8-channel, 120/230 VAC, Isolated card in Simplex mode. An optional terminal block is the Fused I/O block.

Table: DO, 8-Channel, 120 VAC/230 VAC, Isolated Specifications
Item Specifications
Number of channels Eight
Isolation Each channel is optically isolated from the system at 250 VAC and from other channels at 250 VAC.
Output range 20 VAC to 250 VAC
Output rating
  • 1.0 A continuous per channel (inrush 5 A for <100 ms; 20 A for <20 ms)
  • 3.0 A maximum per card up to 50°C (122°F)
  • 2.0 A maximum per card up to 60°C (140°F)
Series 2:
  • 1.0 A continuous per channel (inrush 5 A for <100 ms; 20 A for <20 ms)
  • 3.0 A maximum per card
Optional fuse 2.0 A (inrush 5A for <10 ms at 0.1% duty cycle)
Off state leakage
  • 2 mA maximum at 120 VAC
  • 4 mA maximum at 230 VAC
LocalBus current (12 VDC nominal), per card
  • 100 mA typical
  • 150 mA maximum
Field circuit power, per card None
Configurable channel types:
Discrete Output
  • If FAIL_ACTION_MODE is Hold last value (default): Output stays in last state submitted by the controller.
  • If FAIL_ACTION_MODE is Go to configured failure action mode: Output is driven to the configured faultstate value.
Momentary Output
  • If FAIL_ACTION_MODE is Hold last value (default): Output finishes current pulse.
  • If FAIL_ACTION_MODE is Go to configured failure action mode: Output is driven to the configured faultstate value and the channel is re-configured as a latched output.
Continuous Pulse Output
  • If FAIL_ACTION_MODE is Hold last value (default): Output continues pulsing.
  • If FAIL_ACTION_MODE is Go to configured failure action mode: Output is driven to the configured faultstate value and the channel is re-configured as a latched output.
Mounting Assigned slot of I/O carrier

Wiring Diagram

Figure: Wiring Diagram for DO, 8-Channel, 120 VAC/230 VAC, Isolated