B838–032 24 Vdc Output (True High), Specifications
(Original Document)
Specification Table
The following table provides the specifications for the unit.
B838–032 Specifications
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
0x
or
Mapped as 2 registers output
4x
Output Type
BIN/BCD