Use Of Tle Series 625 To 1000 As Frequency Converter - ABB TLE 625 Series Installation Manual

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4.9.6 Use of TLE Series 625 to 1000 as Frequency Converter

Note!
The UPS needs the connection of the Neutral at the input Bus Bars.
Permanently running the UPS without Bypass supply requires a change of internal wiring to be
performed by an ABB Service Technician only.
When the TLE Series 625 to 1000 is utilized for different output frequency compared to the input frequency, the
Automatic Bypass is disabled, therefore the Load cannot be transferred to Utility in case of overload, short
circuit, or inverter failure.
In situations where the UPS needs to be powered down for maintenance purposes, the critical Load must also be
powered down during this time.
When the set-up parameters of the UPS are set for frequency converter, the eBoost™ Operation Mode is
automatically disabled.
TLE Series 625 & 750
Q1
Q1
Fig. 4.9.6-1 TLE Series 625 to 1000 - Interconnection links BR1, BR2 and BR3
In order to avoid improper operation, only the Rectifier input should be powered (L1-1, L2-1 and L3-1 / Fig. 4.9.2-
1 & 4.9.4.1), therefore the interconnection links BR1, BR2 and BR3, on the input bus bars, must be removed.
See pictures above and Fig. 4.9.6-1.
Special care must be taken in choosing the fuse ratings installed in the output distribution (max. 20% of the
UPS rated current).
Avoid high inrush current due to transformer magnetization or motor starting.
Note!
Only an ABB Service Technician may change a unit from Frequency Converter into a normal UPS
(with Bypass) or a normal UPS to a Frequency Converter (with Bypass).
Load
L3
Load
L2
TLE Series 1000
Load
L1
TLE Series 625 to 1000 PurePulse™ UL S2
1
Rectifier
2
Utility
Bypass
Utility
BR3
L3-1
L3-2
BR2
L2-1
L2-2
BR1
L1-2
UPS Installation Guide / REV-B
Interconnections links
BR1, BR2 and BR3
must be removed!
N
Utility Neutral
Load Neutral
N
Utility Neutral
L1-1
Load Neutral
!
BR3
BR2
BR1