Yaskawa VS-616G5 Series Revision F Programming Manual Uživatelský manuál stáhnout pdf (Strana 117)

VS-616G5 Programming Manual 117

Selects the stopping method when heatsink overheat is detected.

The input phase loss detection circuit monitors the DC bus current ripple and activates when the one of

the input phases are lost. The detection circuit calculates the maximum and minimum values of the DC

bus voltage in one second intervals, and compares the difference (∆V) between these values with an inter-

nal detection level. If ∆V reaches or exceeds the detection level, then after 0.5 second, input phase loss is

detected; a PF fault occurs, and the motor coasts to stop.

Input phase loss detection is disabled in the following cases:

· A Stop command is input.

· Magnetic Contactor (MC) shuts OFF.

· CPU A/D converter fault (CPF5).

· During deceleration.

· Output current ≤ 30% of Inverter rated current.

L8-03 Stopping Method Selection After OH Pre-Alarm OH Pre-Alarm Sel

A A A A

Setting Description

0 Ramp to stop according to C1-02 setting.

1 Coast to stop

2 Ramp to stop according to C1-09 setting (fast-stop).

3 Operation continues, alarm only (factory default).

L8-05 Input Phase Loss Protection Ph Loss In Sel

A A A A

Setting Description

0 Input phase loss protection is disabled (factory default).

1 Input phase loss protection is enabled.

Section L: Protection Parameters

L8 Hardware Protection

1 2 ... 112 113 114 115 116 117 118 119 120 121 122 ... 161 162

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Yaskawa VS-616G5 Series Revision F Programming Manual Uživatelský manuál Strana 117