Description

24 Vdc output

Type of Operation

True High

Number of Points

32

Operating Voltage

20—30 Vdc

Number of Groups

4

Outputs/group

8

Load Voltage

Ripple Voltage

4.0 peak to peak @ 10 kHz or less

Peak Voltage

33 V max

ON State Voltage Drop

1.0 Vdc @ 1/2 A @ full power

Load Current

Continuous Current

0.50 A max / output, 16 A/module maxi-mum

Surge Current

The surge current of the B838 is 2.5 A for 0.5 ms, and should not be exceeded. If a short circuit (momentary or sustained) ex-ists, the FET on the output may fail prior to the group fuse blowing. Modicon recommends one of the following options to protect the outputs:1) Add external fuses to each output (1 - 1.5 A fast blow),2) Add external current limiting resistors to protect the output FET

Lamp Loads

Up to 5 W

Inductive Load Clamp Voltage

-20 V nominal

Inductive Clamp Current

1/2 A peak, 0.6 Hz up to 3.0 Hz

Fast Contactor Turn Off

<60 ms with a 3.0 Hz load

Off State Leakage Current

1 mA max @ 30 Vdc

Maximum Response Time (Resistive Load)

OFF→ΟΝ

1 ms

ON→OFF

1 ms

Power Required

+5 V

160 mA

+4.3 V

1 mA

Power Required (Cont.)

-5 V

0 mA

External Power Supply

24 Vdc 4 V, 125 mA (excluding field load current

Terminal Connector

AS-8535-000

Reference Type

Mapped as 32 bits output

Output Type

BIN/BCD