ABB Remote I/O RIO600 Installation And Commissioning Manual page 95

1MRS757488 H
Table 56: CMHAI Settings
Name Values (Range)
Operation On
Off
TDD Alarm Limit 5.0...100.0
Measuring Mode Worst case
Phase A
Phase B
Phase C
RIO600
Installation and Commissioning Manual
CMHAI provides a method for monitoring the power quality by means of the current
waveform distortion.
Signals
Table 54: CMHAI Input signals
Name Type
I_A SIGNAL
I_B SIGNAL
I_C SIGNAL
BLOCK
Table 55: CMHAI Output signals
Name
HiATdd
Settings
Unit
-
%
-
Voltage total demand distortion monitoring VMHAI
Identification
Function description
Voltage total demand distortion
monitoring
Default
-
-
-
-
Type
BOOLEAN
Step Default
- On
0.1 10%
- Worst case
IEC 61850 IEC 60617
identification identification
VMHAI
Section 6
Commissioning
Description
Phase A current
Phase B current
Phase C current
Block through settings
only
Description
Alarm signal for TDD
Description
Operation Off/On
Limit of TDD
Specifies the
monitored phase
ANSI/IEEE C37.2
device number
PQM3U PQM3V
87