Woodward MicroNet TMR 5009, Installation/Hardware Manual

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5009 Installation/Hardware Manual 85580V2
4 Woodward
The system’s main power supplies are housed in a chassis that may be mounted
(by flanges on its back side) either to a panel or within a cabinet. See Figure 2-1.
This chassis contains slots for two 5009 main power supplies, and allows any
main power supply to be used in either slot. A motherboard located on the back
of the chassis allows the two main power supplies to form a fault-tolerant power
system providing six separately regulated, 24 V, 6 A outputs (three from each
power supply) to the control. The six separate outputs are then wired together to
provide load-shared Pwr “A”, Pwr “B”, and Pwr “C” outputs. Each output provides
up to 6A that are wired to the MicroNet TMR
®
chassis (reference Figure 3-3).
Power output regulation, including line, load, and temperature effects, is better
than ± 5%.
When both main power supplies are running, current sharing circuitry balances
the load to reduce heat and improve reliability of the power supplies. In the event
one supply needs replacement, this feature also ensures bumpless hot
replacement of the power supplies, without disrupting the operation of the
control. Latent fault detection is used to detect and report any power supply
failures to the CPU’s in the control.
Input power connections are made to the main power supply through terminals
on the front of the power supplies. For convenience, when a system is provided
with a cabinet, input power connections are made through panel mounted
Phoenix type terminal blocks. See Figure 4-20. A standard 50-pin ribbon cable is
used for connecting the power supply chassis to the 5009 control chassis.
A set of two main power supplies are provided with each system. Each power
supply set can consist of any two of the three available power supply models,
and in any combination. For instance, a set of one 24Vdc power supply and one
120 Vac power supply may be used to power the 5009 control depending on
whichever power source is available. Different models of power supplies allow
the control to interface with different input source voltages.
Main power supplies are available in the following models:
LVDC –
18-32 Vdc
AC/DC – 88–132 Vac or 100–150 Vdc
HVAC/DC – 180–264 Vac or 200–300 Vdc
Each Main Power Supply has four LEDs to indicate power supply health (OK,
Input Fault, Overtemperature, Power Supply Fault). Refer to Chapter 5 of this
manual for detailed explanations of all LEDs.
Module Descriptions
Physical Description
All chassis mounted control modules are VME-type (VERSAmodule Eurocard)
modules.
Modules slide into card guides in the 5009 control’s chassis and plug into the
motherboard. All modules have their circuitry on a single printed-circuit board.
Each module has a front panel extending from the bottom to the top of the
cabinet.
The modules are held in place by two screws: one at the top and one at the
bottom. Also at the top and bottom are two handles which, when toggled, move
the modules out just far enough for the boards to disengage the motherboard
connectors. Each module is protected with a molded plastic cover to prevent
accidental component damage.