ABB SACE Tmax XT5, Руководство по эксплуатации и обслуживанию

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ABB | SACE Tmax XT
48 | © 2019 ABB | 1SDH002039A1002 - ECN000093027 - Rev. A Protections | 1 - Standard Protections
Harmonic distortion
Allows an alarm to be activated in the case of distorted wavefoms.
The protection can be enabled in the
Measurements menu; if enabled an alarm is activated (page 32).
IMPORTANT: the protection does not handle the trip, just the signal
T Protection
T protection protects against abnormal temperatures recorded by the unit.
It is always activated and invoves two statuses, depending on the temperature reading:
State Temperature range [°C] Ekip Touch actions
Warnings -40 < t < -25 or 70 < t < 85 Display off; Warning led on @ 0.5 Hz
Alarm t < -40 or t > 85 Display off; Alarm and Warning leds on @ 2 Hz
The Trip Enabling parameter can be enabled in the Settings - Circuit breaker menu in order to handle an open
command if an alarm occurs (page 33).
Hardware Trip
Hardware Trip protects against connection errors in Ekip Touch and is available in the
Settings
-
Circuit
breaker - Hardware Trip menu (page 32).
If enabled, if one or more of these events are detected:
• current sensors disconnected (phase or external if enabled)
•
Rating Plug disconnected.
• Trip Coil disconnected
• faults inside the unit
alarm is signaled and an open command is transmitted.
IMPORTANT:
• the protection trips if the error statuses persist for more than one second
• only signaling is managed if an alarm occurs due to Trip coil disconnection