Toshiba GR-200-5 Instruction Manual page 166

UV trip signal
(ii)
The UV1 element issues a trip command for the trip circuit (TRC†) when Trip is set for scheme
switch [UV1-UseFor] as the normal tripping. However, when an alarm signal in place of the
trip command is required, the user can set Alarm for the scheme switch [UV1-UseFor].
†Note: For more information about tripping, see Chapter 2.23.
Operation of UV element
(iii)
The user should set On for scheme switch [UV1-EN] for the operation of the UV1 element.
Otherwise, set Off for the scheme switch if the UV1 element is not required to operate.
Under voltage test
(iv)
Setting [UV-Test] =On is not to operate UV blocking element (UVBLK) for testing.
Scheme logic
2.13.4
Figure 2.13-4 show the logic of the UV function. PLC connection points "UV1_BLOCK" is
provided for blocking the operation of the UV elements. Other PLC connection points
"CB_APH_OPEN" etc. are provided so that the UV function can determine its operation using
the open/closed information of a circuit breaker (CB). For testing, the UV1-PU element is
provided; it generates a pick-up signal when the entering voltage is below the threshold
anytime. For example, in the IDMT characteristic, using both PLC monitoring points
"8000011B20" and "8000011B24" can facilitate to measure the pickup time after the deficiency.
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6F2T0207 (0.01)
GRE200 (5,6)