
apfiff09 marine
VACON®
•
243
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
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7.12.7
4mA Protection
The 4 mA protection monitors the analogue input signal level from Analogue input 1 and Analogue
input 2.
The monitoring function is active when signal range 4 mA
–
20 mA is selected. A fault or warning is
generated when the signal falls below 3.5 mA for 5 seconds or below 0.5 mA for 0.5 seconds.
P2.12.6.1 Response to the 4mA reference fault ID700
“4mA Input Fault”
0
= No response
1
= Warning
2
= Warning, the frequency from 10 seconds back is set as reference
3
= Warning, the Preset Frequency is set as reference
4
= Fault, stop mode after fault according to Stop Function
5
= Fault, stop mode after fault always by coasting
6
= Warning, change control place to Fieldbus.
P2.12.6.2 4mA reference fault: preset frequency reference
ID728
“4mA Fault Freq.”
If value 3 in parameter P2.12.6.1 is selected and a fault occurs the frequency reference
to the motor is the value of this parameter.
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