ABB SACE Emax 2 Series Operating Instructions Manual page 67

Harmonic Distortion
Protection
T Protection T protection protects against abnormal temperatures measured and transmitted to the sensor inside the
Hardware Trip Protection Hardware Trip protects against connection errors in Ekip Touch and is available in the Settings - Circuit
64 | © 2023 ABB | 1SDH001330R1002 - ECN000297030
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 48).
IMPORTANT: the protection does not handle the trip, just the signal
unit; temperature verification is always active and includes three operating states:
State Temperature range [°C]
Standard -25 < t < 70
Warnings -40 < t < -25 or 70 < t < 85
Alarm t < -40 or t > 85
with Ekip Touch, the display remains on within range: -20°C / +70°C; with Ekip LCD, the display
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remains on within range: -30°C / +80°C
All protections enabled in the unit are active in all operating states.
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 49).
breaker - Hardware Trip menu (page 48).
If enabled, with the CB closed, 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
the alarm is signaled and a TRIP command is transmitted.
IMPORTANT:
• the protection trips if the error statuses persist for more than one second
• the signal is activated in the case of an alarm due to Trip coil disconnection and, in the
presence of Vaux, output YO is commanded until the Trip unit detects the CB Open state
(make sure that YO, Ekip Actuator, YO coil supply are present)
Iinst The purpose of this protection is to maintain the integrity of the circuit-breaker and installation in the
case of particularly high current values requiring shorter reaction times than those provided by the
instantaneous short-circuit-protection.
The protection cannot be disabled, the tripping threshold and time are defined by ABB.
Ekip Touch actions
Normal operation; display state depending on type
Warning led @ 0.5 Hz; display state depending on type
(1)
Display off; Alarm and Warning leds @ 2 Hz; TRIP if Trip
enable is activated
ABB | SACE Emax 2
(1)
Ekip Touch - Protections
2 - Standard Protections