NHP Terasaki TemBreak PRO P SE Series, User Manual

Page: 70 / 122

Alarms
70
TemBreak PRO
P_SE-UM-001-EN
– V1.2.0
Pre-Trip Alarm Configurable Settings
The trip threshold and time delay for the PTA overload pre-alarm can be adjusted. The parameters are defined in relation to the long-time delay l
r
and t
r
parameters.
Changes to the PTA I
p
current threshold and t
p
time delay can be made using one or a combination of the below methods:
- P_SE OCR embedded display
- TPED
- TPCM
P_SE OCR embedded display
setting TPED setting TPCM setting Default
Off: PTA Disabled
60…95% Ir: I
p
= 60…95% of I
r
“PreTrip Threshold Ir”
Off: PTA Disabled
60…95% Ir: I
p
= 60…95% of I
r
Command ID: 113 “ Pre-trip Alarm Pick-up threshold I
p
setting ”
Hex 00 3C…00 5F: I
p
= 60 …95% of I
r
*Disabling of PTA is performed via Command ID: 115 – Refer
to TemCom PRO User Manual
I
p
= 80% of I
r
5…80% tr: t
p
= 5…80% of I
r
“PreTrip Delay”
5…80% tr: t
p
= 5…80% of I
r
Command ID: 114 “ Pre-trip Alarm time-delay t
p
setting ”
Hex 00 05…00 50: t
p
= 5…80% of I
r
t
p
= 50% of t
r