Page 233 - Sace Emax 2 Manual for design engineers

ABB | SACE Emax 2
Enabling and measurements The individual inputs of the modulecan be enabled in the Ekip Signalling 3T page: I42 Temperatures, I43
Temperatures, I44 Temperatures, I41 Current 4-20mA (per 3T-1), I52 Temperatures, I53 Temperatures, I54
temperatures, I51 Current 4-20mA (for 3T-2).
Parameter Description Default
Enables the specific input and relative alarm state and signaling
Enable Enabled
controls to be activated

Alarm signals Up to three alarm thresholds (independent of each other), Threshold A, Threshold B, Threshold C, can be
activated and configured for each input in the Protection parameters - Other parameters A (and B if dual set
is activated) page
Each alarm threshold has the following configuration parameters:

NOTE: the table lists the parameters of threshold A of input I42; the names and references
of all the other thresholds and inputs change

Parameter Description Default
Threshold A enable Activates verification of input I42 with alarm Threshold A Off
Defines whether the alarm must activate when measurement is
Threshold A
hysteresis direction above (Up) or below (Down) the set value, with reference to the Up
Threshold A setting
Alarm threshold A of input I42. The value is given in degrees Celsius
(°C) and can be set within the range: -40°C to 240°C, in 0.1°C
steps. 200 °C (I42,
I43, I44, I52,
Threshold A value NOTE: the thresholds of the 4-20mA (I41 and I51) Current I53, I54) / 50
Loop input are given in percentage form and can be set within % (I41, I51)
the range: 0% to 100 %, in 0.1% steps (each step equivalent
to 0.016µA)
Hysteresis value, valid for quitting the alarm condition if the set
Treshold A alarm threshold has been exceeded.
The hysteresis parameter only allows positive values. The trip unit
decides whether to add or subtract this value to or from the alarm
threshold on the basis of the direction parameter, example:
• Direction = Up, Value = 200°C, hysteresis= 10°C, the alarm 1 °C (I42, I43,
Threshold A activates over 200° and de-activates below 190°C I44, I52, I53,
hysteresis I54) / 1 % (I41,
The value is expressed in degrees Celsius (°C) and can be set within I51)
the range: 0°C to 50°C with 0.1°C steps.
NOTE: the thresholds associated with the 4-20mA (I41 and
I51) Current Loop input are given in percentage form and can
be set within the range 0% to 30 %, in 0.1% steps (each step
equivalent to 0.016µA)

States and alarms The state of all control thresholds can be checked in the Warnings/Alarms page

231 | © 2020 ABB | 1SDH001330R1002 - ECN000134959 - Rev. A External electronic accessories | 13 - Ekip Signalling 3T