Toshiba GR200 Series Instruction Manual page 412

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When VCHK1 and VCHK2 are used in 1.5CB system, set the scheme switches [SYN-

VBus], [SYN-VLine], and [SYN-VLine2]. For example, the settings in Figure 2.25-9 are applied

when VCHK 1 and VCHK2 are applied in the 1.5CB system.

Table 2.25-10 Setting example for 1.5CB system

Output voltage

VCHK Setting

Note: Set V-L2 for the scheme switch [SYN-VLine]. This is because V3 and V L2 are in

the same phase. Set V4 for the scheme switch [SYN-VLine2]. This is because V3

and V4 are in the same phase.

Table 2.25-11 VCHK line1 and line2 selection setting

Scheme switch

V-L1 / V-L2 / V-L3 / V-L12 / V-L23 /

V-L31 / V2-L1 / V2-L2 / V2-L3 / V2-

V-L1 / V-L2 / V-L3 / V-L12 / V-L23 /

V-L31 / V2-L1 / V2-L2 / V2-L3 / V2-

V-L1 / V-L2 / V-L3 / V-L12 / V-L23 /

V-L31 / V2-L1 / V2-L2 / V2-L3 / V2-

Running voltage of SYN1(V S )=Phase-B (Bus-bar VT)

Incoming voltage of SYN1 and SYN2 (V b )=Phase-B (Line VT)

Running voltage of SYN2 (V S2 )= Phase-B (Line2 VT)

[SYN-VBus] =

[SYN-VLine]=

[SYN-VLine2] = V4

L12 / V2-L23 / V2-L31 / V3 / V4

6F2S1915 (0.46)

Selection of Bus

voltage(Running Voltage) for

Selection of Line voltage

(Incoming Voltage) for SYN1

Selection of Line2 voltage

(Running voltage) for SYN2

GRZ200 (Soft 031 & 032)