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1.1 General Description
This static, modular inverter system series provide stable, distortion-free AC power from a DC input source at a
selectable output voltage and frequency prior to shipment, for sensitive equipment. With a built-in static transfer
switch, the inverter also forms a reliable and economical part of uninterruptible power supply systems in either on-
line or off-line mode. This series employed modular design to provide N+1 redundancy, and twin controller cards
to double reliability. There are three distinctive parts in these tower inverter systems. The top part is a built-in mod-
ule that houses the twin controller, alarm cards, LCD unit, and LED indicators. The center part is a built-in module
that houses a static transfer switch, and where input and output connectors are located. It is easily recognized by
a twin fan front panel. Above and below this static switch module are individual inverter modules rated 3.5 kVA/3kW
each (those with single fan front panel).
S4 inverters are available in three receiver cabinet configurations housing 1 to 6 inverters, a static transfer switch
console, and redundant microcontroller modules.
Figure 1-1: System Configurations. (N+1 = added redundancy).
7 kVA/3.5 kVA N+1 14 kVA/10.5 kVA N+1 21 kVA/17.5 kVA N+1
1.2 Standard Products
Consult table 1-1 below for the system(s) you are working on.
Table 1-1: Inverter System Characteristics.
Part Power Nominal Input Maximum Maximum Output Selectable
Number rating Input Voltage Input Current Amperes at selectable Output
(kVA) Voltage Range @ -40VDC output voltage of: Frequency
(VDC) (VDC) (Amperes) 120 208-240 Hz
64074/H 7 (-48) (-40 to -60) 176 58 29 50 or 60
64144/H 14 (-48) (-40 to -60) 353 116 58 50 or 60
64214/H 21 (-48) (-40 to -60) 529 174 87 50 or 60
REMOVING MODULE
!
OPEN BREAKER BEFORE
WARNING!
DC INPUT
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS
TEMPERATURE
POWER MODULE
REMOVING MODULE
!
OPEN BREAKER BEFORE
WARNING!
DC INPUT
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS
TEMPERATURE
POWER MODULE
REMOVING MODULE
!
OPEN BREAKER BEFORE
WARNING!
DC INPUT
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS
TEMPERATURE
POWER MODULE
REMOVING MODULE
!
OPEN BREAKER BEFORE
WARNING!
DC INPUT
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS
TEMPERATURE
POWER MODULE
REMOVING MODULE
!
OPEN BREAKER BEFORE
WARNING!
DC INPUT
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS
TEMPERATURE
POWER MODULE
REMOVING MODULE
!
OPEN BREAKER BEFORE
WARNING!
DC INPUT
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS
TEMPERATURE
POWER MODULE
REMOVING MODULE
!
OPEN BREAKER BEFORE
WARNING!
DC INPUT
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS
TEMPERATURE
POWER MODULE
REMOVING MODULE
!
OPEN BREAKER BEFORE
WARNING!
DC INPUT
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS
TEMPERATURE
POWER MODULE
REMOVING MODULE
!
OPEN BREAKER BEFORE
WARNING!
DC INPUT
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS
TEMPERATURE
POWER MODULE
REMOVING MODULE
!
OPEN BREAKER BEFORE
WARNING!
DC INPUT
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS
TEMPERATURE
POWER MODULE
REMOVING MODULE
!
OPEN BREAKER BEFORE
WARNING!
DC INPUT
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS
TEMPERATURE
POWER MODULE
REMOVING MODULE
!
OPEN BREAKER BEFORE
WARNING!
DC INPUT
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS
TEMPERATURE
POWER MODULE
Introduction
3.5 to 21 kVA N+1 Inverter
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