20
Rockwell Automation Publication 1606-RM104A-EN-P - July 2020
Accessories
This section describes accessories that can be used with the power supply.
1606-XLSRED4HE Redundancy Module
The 1606-XLSRED4HE is a dual redundancy module, which can be used to
build 1+1 or N+1 redundant systems.
The device is equipped with two 20 A nominal input channels, which are
individually decoupled by using MOSFET technology. The output can be
loaded with a nominal 40 A continuous current.
Using MOSFETs instead of diodes reduces heat generation, losses and voltage
drop between input and output. Due to these advantages, the unit is narrow
and only requires 36 mm (1.42 in.) width on the DIN rail.
The device does not require an additional auxiliary voltage and is self-powered
even if there is a short circuit across the output. It requires suitable power
supplies on the input, where the sum of the continuous short circuit current
stays below 26 A. This is typically achieved when the power supplies are
featured with an intermittent overload behavior (Hiccup Mode).
See
Parallel Use for 1+1 Redundancy on page 22
for wiring information.
1606-XLBRED20 Redundancy Module
The 1606-XLBRED20 is a dual redundancy module, which can be used to build
1+1 or N+1 redundant systems.
The device is equipped with two 10 A nominal input channels, which are
individually decoupled by using diode technology. The output can be loaded
with a nominal 20 A continuous current.
The device does not require an additional auxiliary voltage and is self-powered
even if there is a short circuit across the output.
The unit is narrow and only requires 39 mm (1.54 in.) width on the DIN rail.
See
Parallel Use for 1+1 Redundancy on page 22
for wiring information.