HMC6 Power Management Controller User Manual Page 53 of 87
Rate Of
Frequency
Change
(ROCOF)
(0-1)
0: Disable
1: Enable
When controller detects that the gen
rate of frequency change (ROCOF) is
greater than the set value, it will send
alarm signal and the alarm
information will be displayed on the
LCD.
Adjust
Frequency
Input Set
This function can be used when power
mode is fixed and external adjust input
is active. Adjust frequency before
breaker close; for single unit, frequency
can be adjusted after breaker is closed;
for the multi-units, active power can be
adjusted after breaker is closed.
This function can be used when power
mode is fixed and external adjust input
is active. Adjust voltage before
breaker close; for single unit, voltage
can be adjusted after breaker is closed;
for the multi-units, reactive power can
be adjusted after breaker is closed.