ABB Relion 620 Series - Page 935

8.1.4.2 Function block
Figure 501: Function block
8.1.4.3 Signals
Table 892: CMMXU Input signals
Name Type Default Description
I_A SIGNAL 0 Phase A current
I_B SIGNAL 0 Phase B current
I_C SIGNAL 0 Phase C current
BLOCK BOOLEAN 0=False Block signal for all bi-
nary outputs
Table 893: CMMXU Output signals
Name Type Description
HIGH_ALARM BOOLEAN High alarm
HIGH_WARN BOOLEAN High warning
LOW_WARN BOOLEAN Low warning
LOW_ALARM BOOLEAN Low alarm
8.1.4.4 Settings
Table 894: CMMXU Non group settings (Basic)
Parameter Values (Range) Unit Step Default Description
Operation
1=on
5=off
1=on Operation Off / On
Num of phases
1=1 out of 3
2=2 out of 3
3=3 out of 3
1=1 out of 3 Number of phases
required by limit
supervision
A high high limit 0.00...40.00 xIn 1 1.40 High alarm current
limit
A high limit 0.00...40.00 xIn 1 1.20 High warning cur-
rent limit
A low limit 0.00...40.00 xIn 1 0.00 Low warning cur-
rent limit
Table continues on the next page
1MRS757644 H Measurement functions
620 series
Technical Manual
935