Danfoss vlt aqua - Page 215

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Bit 05, Not used:

Bit 05 is not used in the status word.

Bit 06, No error / triplock:

Bit 06 = ’0’: The adjustable frequency drive is not in fault mode. Bit 06 = “1”: The adjustable frequency drive is tripped and locked.

Bit 07, No warning/warning:

Bit 07 = ’0’: There are no warnings. Bit 07 = ’1’: A warning has occurred.

Bit 08, Speed≠ reference/speed = reference:

Bit 08 = ’0’: The motor is running but the present speed is different from the preset speed reference. For example, this might be the case when the speed

ramps up/down during start/stop. Bit 08 = ’1’: The motor speed matches the preset speed reference.

Bit 09, Local operation/bus control:

Bit 09 = ’0’: [STOP/RESET] is activate on the control unit or

Local control

in par. 3-13

Reference Site

is selected. You cannot control the adjustable

frequency drive via serial communication. Bit 09 = ’1’ It is possible to control the adjustable frequency drive via serial communication or the serial

communication bus.

Bit 10, Out of frequency limit:

Bit 10 = ’0’: The output frequency has reached the value in par. 4-11

Motor Speed Low Limit [RPM]

or par. 4-13

Motor Speed High Limit [RPM]

. Bit 10

= "1": The output frequency is within the defined limits.

Bit 11, No operation/in operation:

Bit 11 = ’0’: The motor is not running. Bit 11 = ’1’: The adjustable frequency drive has a start signal or the output frequency is greater than 0 Hz.

Bit 12, Drive OK/stopped, autostart:

Bit 12 = ’0’: There is no temporary overtemperature on the inverter. Bit 12 = ’1’: The inverter stops because of overtemperature but the unit does not

trip and will resume operation once the over temperature stops.

Bit 13, Voltage OK/limit exceeded:

Bit 13 = ’0’: There are no voltage warnings. Bit 13 = ’1’: The DC voltage in the adjustable frequency drive’s intermediate circuit is too low or too high.

Bit 14, Torque OK/limit exceeded:

Bit 14 = ’0’: The motor current is lower than the torque limit selected in par. 4-18

Current Limit

. Bit 14 = ’1’: The torque limit in par. 4-18

Current

Limit

is exceeded.

Bit 15, Timer OK/limit exceeded:

Bit 15 = ’0’: The timers for motor thermal protection and thermal protection are not exceeded 100%. Bit 15 = ’1’: One of the timers exceeds 100%.

NOTE!

All bits in the STW are set to ’0’ if the connection between the Interbus option and the adjustable frequency drive is lost, or if an internal

communication problem has occurred.