Temperature Based Active Power Limitation; Temperature Based Operation Inhibits; Fan Control - ABB PVS980-58 Firmware Manual

Temperature based active power limitation


The inverter may limit the active power to limit the input DC current from the PV arrays.
The limit for the DC current is dependent on the measured temperatures. If the active
power is limited by the temperature based limitation, a status bit is set in the limitation
status parameter
130.01 Limit word
defining the temperature measurement that is the source of the
130.05 Limit word 5
limitation. If the DC input current measurement option is available and enabled, also the
power section of which input DC current is limited is shown in parameter
5.
Settings
1, bit14
130.01 Limit word
5, bit0...8
130.05 Limit word

Temperature based operation inhibits


Inverter operation is inhibited if the ambient temperature exceeds the set maximum
operational ambient temperature or is below the minimum operational ambient
temperature. A corresponding status bit is set in parameter
1, when an inhibit is active. An inhibit bit is automatically removed when the
inhibitors
ambient temperature returns within operational limits.
If the power section(s) AC and/or DC cabinet temperature(s) is below the set minimum
operational power section temperature, grid connection is inhibited. A status bit is set in
parameter when an inhibit is active. An inhibit bit is automatically removed when
173.05
the temperature(s) returns above the operational limit.
Settings
173.05 Internal inverter inhibitors
If the power section(s) AC and/or DC cabinet temperature(s) is below the set minimum
operational power section temperature, grid connection is inhibited. A status bit is set in
parameter when an inhibit is active. An inhibit bit is automatically removed when
173.05
the temperature(s) returns above the operational limit.

Fan control


The fans of the inverter are controlled based on the measured temperatures and the
inverter state. The rotation speed of the main air channel fans for each power section can
be read from parameters:
•
202.46 M1 - main channel fan 1...202.49 M1 - main channel fan 4
•
202.50 M2 - main channel fan 1...202.53 M2 - main channel fan 4
The rotation speed of the LCL fans of each power section can be read from parameters:
•
202.62 M1 - LCL fan 1
•
202.64 M2 - LCL fan 1
The failure status of the main LCL fans can be read from parameter
status, where a corresponding fail status bit is set when a fan failure is detected.
The failure status of the power section(s) AC and DC cabinet fans can be read from
parameter 202.72 Chained feedback fans fail
1. Also, a corresponding status bit is set in parameter
1, bit4...6
and
202.63 M1 - LCL fan 2
and 202.65 M2 - LCL fan 2
status.
130.05 Limit word
173.05 Internal inverter
202.71 LCL fans fail
Program features 43