Toshiba GR200 Series - Page 511

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 488 -
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 2.35-9 are applied
when VCHK 1 and VCHK2 are applied in the 1.5CB system.
Table 2.35-10 Setting example for 1.5CB system
Output voltage
at VT
Bus-bar VT= Phase-B
Line VT= Three phase
Line2 VT= Phase-B
Input voltage
at VCT
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)
VCHK Setting
3
[SYN-VBus] = V3
[SYN-VLine]= V-L2
[SYN-VLine2] = V4
3
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 2.35-11 VCHK line1 and line2 selection setting
Scheme switch
Set
Comment
SYN-VBus
V-L1 / V-L2 / V-L3 / V-L12 / V-L23 /
V-L31 / V2-L1 / V2-L2 / V2-L3 / V2-
L12 / V2-L23 / V2-L31 / V3 / V4
Selection of Bus
voltage(Running Voltage) for
SYN1
SYN-VLine
V-L1 / V-L2 / V-L3 / V-L12 / V-L23 /
V-L31 / V2-L1 / V2-L2 / V2-L3 / V2-
L12 / V2-L23 / V2-L31 / V3 / V4
Selection of Line voltage
(Incoming Voltage) for SYN1
and SYN2
SYN-VLine2
V-L1 / V-L2 / V-L3 / V-L12 / V-L23 /
V-L31 / V2-L1 / V2-L2 / V2-L3 / V2-
L12 / V2-L23 / V2-L31 / V3 / V4
Selection of Line2 voltage
(Running voltage) for SYN2