State Shifts; Settings - ABB ACS350 User Manual

128

State shifts

RFG = Ramp Function
Generator in the speed
control loop (reference
handling).
State (Symbol
- NN: State name
- X/Y/Z: State outputs/operations
X = 1
Y = 1
Z = 1
State change conditions (Symbol
1) Brake control active 0 -> 1 OR Inverter is modulating = 0
2) Motor magnetised = 1 AND Drive running = 1
3) Brake is open AND Brake open delay passed AND Start = 1
4) Start = 0
5) Start = 0
6) Start = 1
7)
8) Start = 1
9) Brake is closed AND Brake close delay passed = 1 AND Start = 0

Settings

Parameter
1401/1805
2112
Group
Program features
NN
X/Y/Z
Open the brake. The relay output set to brake on/off control energises.
Forced start. The function keeps the internal Start on until the brake is closed in spite of the
status of the external Start signal.
Ramp in zero. Forces the used speed reference (internal) to zero along a ramp.
Actual motor speed < Brake close speed AND Start = 0
43 MECH BRK CONTROL
From any state
1)
NO
MODULATION
2)
OPEN
BRAKE
3)
RELEASE RFG
INPUT
4)
RFG INPUT
TO ZERO
7)
CLOSE
BRAKE
8) 9)
)
)
Additional information
Mechanical brake activation through RO/DO
Zero speed delay
Brake function settings
(rising edge)
0/0/1
1/1/0
A
5)
1/1/0
1/1/1
6)
0/1/1
A