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32
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P
OWER
S
UPPLY
U
NIT
(PSU)
The Power Supply Unit (PSU) is a low voltage power supply, required for the operation of the electronics assigned to the monitoring
of the Cabinet. Within the Modular UPS Power Cabinet the PSU powers the MCU, MU and ASB, while in the Battery Cabinet the
PSU powers the MU and the circuit for opening the SWBATT.
Two PSUs are installed within the Cabinet and are monitored by the MU, one of them is redundant.
Fastening knobs
Interface panel
I
NTERFACE PANEL
Green
On steady:
PSU ready
Green
On steady:
PSU powers the load
I
NSERTION
/
EXTRACTION PROCEDURE
The following operations must only be performed only by skilled and specifically trained service personel.
When the PSU is not inserted, uncovered parts with dangerous voltage are present on the corresponding
backplane.
The PSU is preinstalled by the manufacturer. Remove the PSU only in case of maintenance or replacement.
Strictly comply with the instructions as listed below.
EXTRACTION
Unscrew the fastening knob.
Using the knob, carefully pull and remove the PSU.
INSERTION
Carefully insert the PSU in the dedicated slot.
Fasten the PSU by tightening the knob.
Summary of Contents for multipower BTC 170
Page 1: ......
Page 2: ......
Page 6: ...6...
Page 8: ...8 GENERAL VIEWS Front view Back view Frame Handle with lock Door Back Panel...
Page 20: ...20 The wiring diagram of the Modular UPS Power Cabinet is provided below...
Page 23: ...23 The wiring diagram of the Modular UPS Combo Cabinet is provided below...
Page 54: ...54 Combo Cabinet...
Page 55: ...55 Battery Cabinet...
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Page 84: ...0MNMPWK25R1ENUA...