ABB ACS350 Series, User Manual

Page: 128 / 314

Program features
128
State shifts
Settings
Parameter Additional information
1401 / 1805 Mechanical brake activation through RO/DO
2112 Zero speed delay
Group 43 MECH BRK CONTROL Brake function settings
RFG INPUT
TO ZERO
CLOSE
BRAKE
OPEN
BRAKE
From any state
1/1/1
0/1/1
1/1/0
1/1/0
1)
2)
RELEASE RFG
INPUT
3)
4)
7)
8)
5)
NO
MODULATION
0/0/1
9)
6)
A
A
State (Symbol )
- NN: State name
- X/Y/Z: State outputs/operations
X = 1 Open the brake. The relay output set to brake on/off control energises.
Y = 1 Forced start. The function keeps the internal Start on until the brake is closed in spite of the
status of the external Start signal.
Z = 1 Ramp in zero. Forces the used speed reference (internal) to zero along a ramp.
NN
X/Y/Z
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) Actual motor speed < Brake close speed AND Start = 0
8) Start = 1
9) Brake is closed AND Brake close delay passed = 1 AND Start = 0
RFG = Ramp Function
Generator in the speed
control loop (reference
handling).
(rising edge)