6-276
J467
J468
J469
Auxiliary Motor (PV operation level)
(Connection
timer)
(Interrupting
timer)
For the inverter drive motor floating system (J401 = 2) in the pump control mode selection,
the inverter-driven motor is allowed to free-run before increasing the number of motors. The
auxiliary motor is driven to control the pressure variation during a time period until the motor
is commercial power-driven (contactor restart time during motor switching (J454)).
Furthermore, when the number of motors is decreased, the auxiliary motor is not driven. The
timing to drive and stop the auxiliary motor is determined by the connection level and the
interrupting level. This judgment is implemented continually for a given period of time after
allowing the inverter-driven motor to free-run. This period of time is ten times the larger
value of the contactor restart time during motor switching (J454) or the auxiliary motor
(connection timer) (J468).
Summary of Contents for FRENIC-AQUA series
Page 1: ...MEHT538b...
Page 2: ...User s Manual...
Page 13: ......
Page 15: ......
Page 33: ......
Page 35: ......
Page 61: ...2 26 Figure D Figure E NC No connection Do not make wiring NC NC...
Page 63: ...2 28 Figure J Figure K Charging lamp Charging lamp Viewed from A...
Page 83: ...2 48 Unit mm FRN45 to 55AQ1 4...
Page 84: ...2 9 External Dimensions 2 49 Chap 2 SPECIFICATIONS Unit mm FRN75 to 90AQ1 4...
Page 85: ...2 50 Unit mm FRN110AQ1S 4 FRN132AQ1S 4 FRN160AQ1S 4 FRN200AQ1S 4...
Page 87: ...2 52 Unit mm FRN500AQ1S 4 FRN630AQ1S 4 FRN710AQ1S 4...
Page 88: ...2 9 External Dimensions 2 53 Chap 2 SPECIFICATIONS 2 9 2 Keypad Unit mm Panel cutout...
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Page 140: ...4 4 Options 4 33 Chap 4 SELECTING PERIPHERAL EQUIPMENT...
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Page 341: ...6 60 Example of Thermal Overload Detection Characteristics...
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Page 651: ...7 12 Figure 7 7 Terminal FM2 Output Selector...
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Page 751: ...MEHT537 Phone 81 3 5435 7058 Fax 81 3 5435 7420 Printed in Japan 2012 08 H12b b12 CM00FOLS...