Fuji Electric FRENIC-AQUA series, User Manual

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J168
J169
Control of Maximum Starts per Hour (motor)
(Input selection)
(Number of slow flowrate stop detections)
This detects frequent occurrence of start and slow flowrate stop due to the failure of
accumulators or other equipment. As for the inverter, it is possible to select whether operation
is to be stopped with alarm or operation is to be continued with warming being output.
If the number of initiations exceeds the number of slow flowrate stop detections (J169) within
the number-of-detection clearing time (J170), the control of maximum starts per hour (motor)
becomes active in a short period of time.
„ Control of maximum starts per hour (motor) (Input selection) (J168)
J168 specifies the protection mode for control of the maximum starts per hour.
- Data setting range: 0 to 2
Data for J168 Operation description
0 Disable
1 Alarm (inverter stop with roC trip)
* After alarm is canceled, Control of maximum starts per hour (motor) is
started when the first slow flowrate stop occurs.
2 Warning output
* After warning is canceled, Control of maximum starts per hour (motor) is
started when the first slow flowrate stop occurs.
Operations regarding control of maximum starts per hour can be monitored from
external equipment, by assigning L-ALM ("Light alarm") to any of [Y1] to [Y4],
[Y5A/C] and [30A/B/C]. (E20 to E24 and E27, data = 98)
„ Control of maximum starts per hour (motor) (Number of slow flowrate stop detections)
(J169)
Set the number of stops as a detection condition.
- Data setting range: 1 to 10
The number of slow flowrate stop detections (J169) is cleared when one of the following
conditions is satisfied.
• When a set period of time has elapsed
• When the run command is OFF (stop)
• When PID control cancel is performed
• When alarm is generated