ferrotec Temescal CV-6SLX, Руководство пользователя, Страница: 47 / 92

0101-8242-0, Rev. C 4-1 CV-6SLX User Manual
4 Theory of Operation
4.1 Section Overview
This section provides separate theories of operations for the major modules of the CV-6SLX
power supply. Section 4.2 contains a theory of operation for the power module (i.e., HVPS) and
section 4.3 covers the FPS in detail.
4.2 Power Module Theory of Operation
4.2.1 Input Power Filtering, Protection, and Distribution
AC line power is connected to the power module through the green connectors below AC Input
on the unit’s rear-panel (see Figure 4-1). Line filter LF1 (see Figure 4-2) then performs high-
frequency filtering to minimize conductive emissions from the unit and to protect against AC line
transients at common levels. The load side of LF1 feeds three-phase circuit breaker CB1 (see
Figure 4-2) as well as the J2, the filtered rear-panel IEC auxiliary outlet (see Figure 4-1). Circuit
breaker CB1 is mounted to the front panel and shielded from inadvertent operation by a “kick”
guard. CB1 provides overcurrent protection for the three AC line phases, and its load side feeds
the Inverter board (see Figure 4-2). Rear panel AC outlet J2 is fused at 6.3A by F1 and F2,
which are accessible via the rear panel through panel-mounted fuse holders (see Figure 4-1). On
208 VAC units, outlet J2 is connected between phases, while on 400 VAC units it is connected
between one phase and neutral. The goal is to maintain the J2’s voltage between 187 VAC and
254 VAC, taking into account the
± 10% tolerance range of the voltage supplied to TB1.
Figure 4-1 CV-6SLX HVPS Rear Panel