Toshiba GR-200-5 Instruction Manual page 47

Summary of OC operation
(viii)
Table 2.1-4 shows the summary of OC operation. Note that DEF will be set unconditionally in
IEC-NI, VI, EI and UK-LTI characteristics (†).
Table 2.1-4 Type and standard board in the OC1 (A tick shows a selectable function)
Characteristics DT
✓
DT
IEC-NI
IEC-VI
IEC-EI
UK LTI
IEEE-MI
IEEE-VI
IEEE-EI
US-CO2
US-CO8
Original
N.A
DEF
N.A
N.A
N.A
DEP
N.A
N.A
N.A
Threshold value for operation
2.1.3
The value of threshold current at which the OC element will pick-up is configured by a setting;
the setting [OC1] is provided for both the IDMT and DT characteristics. Note that the settings
of the threshold levels can have distinct values in the respective OC elements. A rating current
for the input is defined either 1A or 5A using System parameter settings. (For more information
about the rated current, see Chapter
current
→p. 626).
Reset Ratio
2.1.4
The ratio of the threshold current for pick-up to reset is applied using a setting; for example,
the ratio for the OC1 element is set using the setting [OC1-DPR]. The reset ratios for the other
OC elements are also provided.
IEC-NI IEC-VI IEC-EI UK-LTI
✓
✓
✓
✓ † ✓ † ✓ † ✓ †
Technical description: Rated Frequency and Rated
- 27 -
IDMT
IEEE-MI IEEE-VI IEEE-EI
✓
✓
✓
✓ ✓
✓
✓
6F2T0207 (0.01)
US-CO2 US-CO8
✓
✓
✓
✓ ✓ ✓
✓
✓
✓
GRE200 (5,6)
Original
✓
✓
✓