General State Diagram; Stopping The Motor - HMS A8NDPV1 Instruction Manual

General State Diagram

7.5 General State Diagram
This general state diagram shows how the inverter behaves based on Control Word 1 (STW1).
For detailed state diagrams for various modes, please consult ProfiDrive technical specification
manual.
Coast Stop
OR Quick Stop
STW1 bit1 = false
OR bit 2 = false
Coast Stop
STW1 bit 1 = false
¼¼¼: 1st priority
¼¼:
2nd priority
¼:
3rd priority
7.5.1

Stopping the motor

While inverter is in operation state it can be stopped in different ways using control word 1
(STW1).
Quick stop results in motor decelerating to a stop with speed specified in inverter parameter
1103. This stop is achieved by disabling "no quick stop" bit (STW1 bit 2). After quick stop inverter
transfers to "Switching ON inhibited" state.
Coast stop results in cutting power from motor and letting it coast to stop. This stop is achieved
by disabling "no coast stop" bit (STW1 bit 1). After coast stop inverter transfers to "Switching ON
inhibited" state.
Disabling "ON" bit (STW1 bit 0) will result in motor decelerating to stop according to inverter
parameter 8. Inverter transfers to "Ready for Switching ON" state.
Disabling "Enable Operation" bit (STW1 bit 3) will result in motor coasting to stop, after stopping
inverter transfers to "Switched ON" state.
132
General State Diagram
Power supply ON
S1: Switching ON Inhibited
ZSW1 bit 6 = true; 0, 1, 2 = false
OFF
AND No Coast Stop OR Quick Stop
AND No Quick Stop STW1 bit1 = false
STW1 bit 0 = false AND bit 1 = true OR bit 2 = false
AND bit 2 = true
S2: Ready for Switching ON
ZSW1 bit 0 = true; 1, 2, 6 = false
ON
STW1 bit 0 = true STW1 bit 0 = false
S3: Switched ON
ZSW1 bit 0, 1 = true; 2, 6 = false
Enable Operation Disable Operation
STW1 bit 3 = true STW1 bit 3 = false
accelerate with
Pr. 7 speed
S4: Operation
ZSW1 bit 0, 1, 2 = true; 6 = false
Coast Stop
Coast Stop Coast Stop
STW1 bit 1 = false STW1 bit 1 = false
S5: Switching OFF
ZSW1 bit 0,1 = true,
bit 2,6 = false
Standstill detected
OR
OFF
Disable Operation
STW1 bit 3 = false
ramp stop
accelerate
coast stop
with Pr. 7
speed
ON
STW1 bit 0 = true
decelerate
with Pr. 8
speed
Data Exchange
Standstill
detected OR
Disable Operation
STW1 bit 3 = false
quick stop
Quick Stop
STW1 bit 2 = false
OFF Quick Stop
STW1 bit 0 = false STW1 bit 2 = false
decelerate with
Pr. 1103 speed
Doc.Id. HMSI-216-127
Doc.Rev. 1.01