Goodrive300-01A series VFD for air compressor
Function description
-98-
speed is controlled by pressure PID. P18.07 is used to set the air supply pressure when the air
compressor runs stably. The VFD keeps the discharge pressure constant by regulating the master
speed. Constant-pressure control adopts PID algorithm, and the frequency reference source of the
master is set by P00.06=7, the PID reference source selects P09.00 = 10, reference pressure is set
via P18.07. The feedback source of PID P09.02 = 8, which is obtained by detecting the pressure
signal. PID parameter P9.04, P9.05 and P9.06 adopts system default values.
Note:
In above figure, the VFD stops as per P01.08, default setting is decelerate to stop.
Normal stop command and unloading stage are deceleration process; the VFD will change to coast to
stop during emergency-stop operation and faults.
5.3 Fault policy function description
Table 5-1 Fault policy functions
Fault policy
function selection
Meaning
0
Coast to stop when a fault occurs, and manual reset is required.
1
Run at alternative frequency when a fault occurs.
If the VFD is in the stopping state, a fault is reported, and manual
reset is required.
If the VFD is in the running state, it runs at the alternative frequency
(P21.10). If the fault disappears within the running time of
alternative frequency (P21.11), the VFD restores to normal
operation.
If the VFD continues running at alternative frequency (P21.10), and
the fault persists after P21.11 is reached, a fault is reported, and the
VFD coasts to stop. Manual reset is required.
During running at the alternate frequency, the warning code P17.39
is displayed, and the keypad TRIP indicator flashes.
2
Coast to stop when a fault occurs, and automatic reset is allowed.
When a fault occurs, the VFD will attempt to reset itself every
interval (P08.29). If the fault disappears, the VFD restores to
normal operation.
During auto reset, no fault is reported, but the warning code
(P17.39) is displayed, and the keypad TRIP indicator flashes.
The fault is reported only when the cumulative number of automatic
reset times exceeds the number set in P08.28, and a manual reset
is required.
The cumulative number of automatic reset times is displayed on
P17.18.
After the fault is successfully reset and the VFD operates normally
Summary of Contents for GD300-01A
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