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  9. PowerShield PSMBSR10K User manual

PowerShield PSMBSR10K User manual

1. Introduction
The PSMBSR10K is used as an external maintenance bypass switch module to provide
uninterrupted power to the connected loads during UPS scheduled maintenance, battery
replacement and or UPS replacement. It is suited for use with the 6kVA or 10kVA UPS.
PSMBSR10K Rack Mount Installation
The PSMBSR10K may be mounted with its front
panel aligned to the front or rear of the 19” rack
enclosure. It can also be mounted above or below
the UPS but it is usually more convenient above.
2. Product Overview of PSMBSR10K
Diagram 1: Front View Diagram 2: Top View
PSMBSR10K input breaker UPS output terminal
Front cover and Bypass Switch (behind) UPS input terminal
EMBS control terminals (C1,C2) Utility Mains input terminal
Output terminals to Load Earth terminal
3. Installation and Operation
Inspection
Unpack the equipment and check the contents for the following items:
Maintenance bypass switch module x 1
Quick guide x 1
NOTE: Before installation, please inspect the unit and check for damage during transportation.
If there is any evidence of damage, or missing parts, do not apply power to the unit and
immediately notify the carrier and or dealer.
Initial Setup
The Installation and wiring must be performed in accordance with the local electrical
laws/regulations and must be carried out only by qualified and certified personnel.
The cable for 6K/6KL should be rated to carry up to 40A current.
The cable for 10K/10KL should be rated to carry up to 63A current.
Connect UPS to the External Maintenance Bypass Switch Module
WARNING: It is essential to connect the EMBS (C1, C2) terminals on the UPS to the
EMBS (C1, C2) terminals on the PSMBSR10K (Maintenance Bypass Switch module). Failure to do
so will cause damage to the UPS and void the warranty. Check the UPS model User manual for
the rear panel UPS Terminal Block pin assignment.
PowerShield Maintenance Bypass Switch
PSMBSR10K for 6KVA or 10KVA UPS
Quick Guide
www.powershield.com.au
4. Operation
Transfer to Maintenance Bypass
To transfer from UPS mode to maintenance “Bypass”, follow the steps below:
Step 1:
To transfer the UPS to static bypass mode automatically, unscrew the two fasteners and
remove the maintenance switch front cover. This will automatically release the micro switch
located behind the maintenance cover (and will connect C1 to C2 on the normally open micro
switch contacts across the EMBS terminals).
Important: Verify the UPS has now switched to static bypass mode on the LCD located on
the front panel of the UPS. If this does not happen then do NOT proceed any further.
Step 2:
1) For Bypass and Test mode - rotate switch to “BYPASS” position. In this position the UPS
will still receive mains power however the load will be fed from the mains. Testing can
now be performed on the UPS.
2) For Bypass and Isolate mode - switch PSMBSR10K input breaker to “OFF”. In this position
the UPS will receive no power whatsoever and the load will be supplied from mains. After
confirming there is no voltage present on the terminals the UPS can be safely removed
from the circuit.
All load devices will now be powered directly by the utility and not through the UPS. After
disconnecting the batteries from the UPS, the service and maintenance of the equipment may
commence.
Transfer back to UPS mode
To transfer from maintenance “Bypass” / “Bypass and Isolate” to UPS mode, follow the steps
below:
Important: Ensure PSMBSR10K maintenance switch front cover is off.
Step 1:
Reconnect Battery system, switch UPS input breaker to “ON” and switch the PSMBSR10K input
breaker to “ON”. The UPS will then start in static bypass mode.
Important: Verify the UPS has now switched on and is in static bypass mode on the LCD
located on the front panel of the UPS. If this does not happen then do NOT proceed any
further.
Step 2:
Rotate switch to “UPS” position. All load devices will now be powered by the utility through the
UPS which is still operating in static bypass mode.
Step 3:
Replace and secure the PSMBSR10K maintenance switch front cover.
Step 4:
Press “ON” button located on the front panel of the UPS unit. Confirm UPS output is operating
through the inverter on LCD (inverter mode). All the Load devices will now be fully protected
by the UPS.
5. Specifications
Parameter
Max.
Input breaker
Current
63 A
Voltage
250 V
Bypass switch
Current
63 A
Voltage
690 V
Input/Output terminal
Current
60 A
Voltage
600 V
Physical
Dimensions, D x W x H (mm)
254 x 433 x 88
Net weight (Kgs)
5.9

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