Toshiba GR200 Series - 2.35.4 VCHK1 setting for 1 CB system

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 483 -
2.35.4 VCHK1 setting for 1CB system
When the VCHK1 is applied to 1CB system, OVB and UVB check the voltage of a Bus-bar,
whereas OVL and UVL check the voltage of Line, as described earlier. The Bus-bar and Line
voltages are obtained in the VCT
1
. Thus, user should set the scheme switches [SYN-VBus] and
[SYN-VLine] in accordance with the phase(s) of input-voltage(s). The following are the setting
examples when VCHK is used in 1CB system.
1
Note: For more information on VCT, see Chapter Technical description: Transfer
module . For external connection, see Appendix: Typical external connection .
Table 2.35-6 VCHK line 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