Limits, Speed feedback, Alarms – GE Industrial Solutions DV-300 DC Drive Users Manual User Manual

Page 137: Overload control, Limits speed feedback alarms overload control

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DV-300 Adjustable Speed Drives

——— FUNCTION DESCRIPTION ———

6

9

Limits

Speed limits and current limits drive setting:

T current lim

Current limit setting (see chapter 6.5.2 for more details).

Flux current max

Maximum field current value as percentage of Motor fld curr.

Flux current min

Minimum field current value as percentage of Motor fld curr. (See chapter 6.5.3 for

more details).

Speed min amount

Minimum speed reference limit. (see chapter 6.5.1 for more details).

Speed max amount

Maximum speed reference limit. (see chapter 6.5.1 for more details).

Speed feedback

Speed feedback setting (see chapter 6.11.4 for more details) :

Speed fbk sel

Speed feedback selection

Tacho scale

Tach generator feedback scaling (Speed fbk sel must be set to Tacho)

Speed offset

Speed feedback offset

Encoder 2 pulses

Number of pulses per revolution of the digital encoder to the XE2 connector.

Enable fbk contr

Speed feedback loss control. The Motor max speed, Max out voltage, Flux weak

speed parameters must be set correctly according to the motor used.

Refresh enc 2

Enable the monitoring of the encoder 2 (XE2 connector) connection status (A , B, Anot,

Bnot channels). Enable fbk contr must be enabled.

Alarms

Overvoltage and Overcurrent threshold setting (see chapter 6.11.7 for more details) :

Undervolt thr

AC input alarm threshold value

Overcurrent thr

Overcurrrent alarm threshold value.

Overload control

Current overload setting (see chapter 6.14.6 for more details) :

Enable overload

Current overload control enabling.

Overload mode

Overload current mode selection (Curr limited, Curr not limited, I2t Motor, I2t Drive,

I2t motor & I2t drive)

Overload current

Drive output current permissible during the overload time

Base current

Drive output current permissible during the pause time

Overload time

Maximum time in which the Overload current is permissible.

Pause time

Minimum time between overload cycles.

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