Rockwell Automation 1769-OB32 Installation Instructions - Manual (Page 19)

Compact 32-point Solid-state 24V dc Source Output Module 19
Publication 1769-IN031A-EN-P - April 2003
Transistor Output Transient Pulses
The maximum duration of the transient pulse occurs when minimum load is
connected to the output. However, for most applications, the energy of the
transient pulse is not sufficient to energize the load.
ATTENTION
!
A transient pulse occurs in transistor outputs when the external
DC supply voltage is applied to the output common terminals
(e.g. via the master control relay). The sudden application of
voltage creates this transient pulse. This condition is inherent in
transistor outputs and is common to solid state devices. A
transient pulse can occur regardless of the controller having
power or not. Refer to your controller’s user manual to reduce
inadvertent operation.
0.50
0.55
0.60
0.65
0.70
0.75
0.80
0.85
0.90
0.95
1.00
30˚C
Ambient Termperature
Maximum Amperes Per Point
(86˚F) 40˚C
1769-OB32 Maximum Amperes per Point vs. Temperature
Temperature Derating
(104˚F) 50˚C (122˚F) 60˚C (140˚F)
30526-M