Interface Specifications > Signal Conditioning Cards

Discrete Output 120 VAC Signal Conditioning Card for 1771 I/O

Installation notes

Specifications

Table: Discrete Output 120 VAC Signal Conditioning Card for 1771 I/O specifications

Item

Specification

Field device type

120 VAC high-side

Number of channels

16

Isolation

  • 250 VAC channel to system
  • No channel-to-channel isolation

Electrical connections

  • Front: one 1771-WH swing arm
  • Bottom: one 20-pin ribbon-cable connector

Output voltage range

  • 10-138 VAC at 47-63 Hz
  • 125 VDC

Output current rating

2 A per channel, not to exceed 8 A per card

Maximum surge current

  • 25 A per channel for 10 ms, repeatable every 2 s
  • 25 A per card for 10 ms, repeatable every 2 s

Maximum ON-state voltage drop

1.5 V at load current, 50 mA to 2 A

Minimum ON-state load current

50 mA per channel

Maximum OFF-state leakage current

3.0 mA at 138 VAC

Fusing

  • One fuse (10 A / 250 VAC, fast-acting, cartridge, ceramic, 3AB, 3AG, 1/4” x 1-1/4”)
  • Littlelfuse P/N 0332010.HXP

Dimensions

  • Height: 208 mm (8.2 in.)
  • Width: 32 mm (1.3 in.)
  • Depth: 168 mm (6.6 in.)

Operating temperature range

-40 to 60 °C

Storage temperature range

-40 to 85 °C

Relative humidity range

5 to 95% non-condensing

Protection from airborne contaminants

ISA-S71.04-1985 Airborne Contaminants Class G3 conformal coating

Protection rating

IP 20

Shock

10 g, 1/2-sine wave for 11 ms

Vibration

1 mm peak-to-peak from 2 to 13.2 Hz, 0.7 g from 13.2 to 150 Hz