Danfoss MCA 122 Modbus TCP, Руководство по эксплуатации, Страница: 25 / 46

When bit 03="1", the frequency converter has tripped and
requires a reset signal before it can start.
Bit 04, ON 2/OFF 2
When bit 01 of the Control word is "0", then bit 04="0".
When bit 01 of the Control word is "1", then bit 04="1".
Bit 05, ON 3/OFF 3
When bit 02 of the Control word is "0", then bit 05="0".
When bit 02 of the Control word is "1", then bit 05="1".
Bit 06, Start possible/Start not possible
If PROFIdrive has been selected in
8-10 Control Word Profile ,
bit 06 will be "1" after a switch-off acknowledgment, after
activation of OFF2 or OFF3, and after switching on the
mains voltage. Start not possible is reset, with bit 00 of the
Control word being set to "0" and bit 01, 02 and 10 being
set to "1".
Bit 07, No warning/Warning
Bit 07=“0” means that there are no warnings.
Bit 07=“1” means that a warning has occurred.
Bit 08, Speed≠reference/Speed=reference
When bit 08="0", the current speed of the motor deviates
from the set speed reference value. This may occur, for
example, when the speed is being changed during start/
stop through ramp up/down.
When bit 08="1", the current speed of the motor
corresponds to the set speed reference value.
Bit 09, Local operation/Bus control
Bit 09="0" indicates that the frequency converter has been
stopped with the stop button on the LCP, or that [Linked
to hand] or [Local] has been selected in
3-13 Reference Site .
When bit 09="1", the frequency converter can be
controlled through the serial interface.
Bit 10, Out of frequency limit/Frequency limit OK
When bit 10="0", the output frequency is outside the limits
set in
4-52 Warning Speed Low and 4-53 Warning Speed
High . When bit 10="1", the output frequency is within the
indicated limits.
Bit 11, No operation/Operation
When bit 11="0", the motor does not turn.
When bit 11="1", the frequency converter has a start
signal, or the output frequency is higher than 0 Hz.
Bit 12, Drive OK/Stopped, autostart
When bit 12="0", there is no temporary overloading of the
inverter.
When bit 12="1", the inverter has stopped due to
overloading. However, the frequency converter has not
switched off (trip) and will start again after the overloading
has ended.
Bit 13, Voltage OK/Voltage exceeded
When bit 13="0", the voltage limits of the frequency
converter are not exceeded.
When bit 13="1", the direct voltage in the intermediate
circuit of the frequency converter is too low or too high.
Bit 14, Torque OK/Torque exceeded
When bit 14="0", the motor torque is below the limit
selected in
4-16 Torque Limit Motor Mode and 4-17 Torque
Limit Generator Mode . When bit 14="1", the limit selected
in 4-16 Torque Limit Motor Mode or 4-17 Torque Limit
Generator Mode is exceeded.
Bit 15, Timer OK/Timer exceeded
When bit 15="0", the timers for the thermal motor
protection and thermal frequency converter protection
have not exceeded 100%.
When bit 15="1", one of the timers has exceeded 100%.
4.3.3 PROFIdrive State - Transition Diagram
In the PROFIdrive Control profile, the control bits 0 to 3
perform the basic start-up/power down functions, whereas
the control bits 4-15 perform application-oriented control.
Illustration 4.1 shows the basic state-transition diagram,
where control bits 0 to 3 control the transitions, and the
corresponding status bit indicates the actual state. The
black bullets indicate the priority of the control signals,
where fewer bullets indicate lower priority, and more
bullets indicate higher priority.
How to Control MCA 122 Modbus TCP
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