ABB RES670 Technical Manual page 518

Section 16
Monitoring
512
Y
High-high limit
High limit
X_RANGE=0
Low limit
X_RANGE=2
Low-low limit
X_RANGE=4
IEC05000657 V3 EN-US
Figure 197: Presentation of operating limits
Each analog output has one corresponding supervision level output (X_RANGE). The
output signal is an integer in the interval 0-4 (0: Normal, 1: High limit exceeded, 3:
High-high limit exceeded, 2: below Low limit and 4: below Low-low limit).
The logical value of the functional output signals changes according to figure 197.
The user can set the hysteresis (XLimHyst), which determines the difference between
the operating and reset value at each operating point, in wide range for each measuring
channel separately. The hysteresis is common for all operating values within one
channel.
Actual value of the measured quantity
The actual value of the measured quantity is available locally and remotely. The
measurement is continuous for each measured quantity separately, but the reporting of
the value to the higher levels depends on the selected reporting mode. The following
basic reporting modes are available:
• Cyclic reporting (Cyclic)
• Magnitude dead-band supervision (Dead band)
• Integral dead-band supervision (Int deadband)
• Amplitude Deadband and 5s cyclic
• Amplitude Deadband and 30s cyclic
• Amplitude Deadband and 1min cyclic
Y = Magnitude of the Measured Quantity
X_RANGE = 3
X_RANGE= 1
Hysteresis
X_RANGE=0
1MRK 511 408-UUS A
IEC05000657-3-en.vsdx
Phasor measurement unit RES670 2.2 ANSI
Technical manual
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SEMOD54417-150 v4