ABB PRO-33.0-TL Series, Service Manual

Page: 79 / 122

Parameters 79
No. Name/Value/Range Description Default
FbEq (16b/32b)
174 String monitor
174.02 String monitor action Selects how the inverter should react when a
deviation is detected in the string currents. Warning
No Any deviations are ignored. 0
Warning A warning is indicated. 1
Fault A fault event occurs and the inverter trips. 2
174.11 Input connection status Sets the connection status of each string. 0b00000000
String 1 String 1 is configured. 0
... ... ...
String 8 String 8 is configured. 7
Reserved 8...15
174.12 Reverse string current
detection Enables reverse current detection. Enable
Disable 0
Enable 1
174.13 Reverse string current limit Sets the reverse current detection limit. 0.3 A
0 … 0.34 A 100 = 1 A
174.14 String current detection Enables the string current deviation detection.
Note : String current detection is available only in
-SX models that includes a string combiner with
DC fuses.
Disable
Disable 0
Enable 1
174.15 String monitor delay Sets the duration of how long the current
deviation must be above limit before defined
action of the string monitor is triggered. 1 min
0 … 1440 min 1 = 1 min
174.16 Comparison mode Selects the comparison mode of the string current
deviation detection. Relative
Absolute The string current deviation is detected by
comparing the difference in amperes. 0
Relative The string current deviation is detected by
comparing the difference in percents of reference
value. 1
174.17 Reference type Selects the current reference type of the string
monitor. Mean
Max The reference is the maximum value. 0
Mean The reference is the mean value. 1
174.18 Relative current limit Sets the relative string current limit: maximum
allowed difference in percent between each string
and the reference value. 30%
0 … 100% 1 = 1%
174.19 Absolute current limit Sets the absolute string current limit: maximum
allowed difference in amperes between each
string and the reference value. 1 A
0 … 100 A 1 = 1 A /
10 = 1 A