ABB ACL30 - Operation Time Scheme

Program features 153
 Operation time scheme
The timing diagram below illustrates the operation time scheme of mechanical brake
control.
Start command
t
Modulating
Magnetized
SPEEDREF ACT
1 3 7
5
9
t
md
t
bo d
T
s
n
cs
T
me m
2
t
trd
10
t
sd
t
mo d
Torque limit
t
tru
4
6
11
T
ma x
8
T
me m
12
T
pv
t
tpv
R
bs
13
t
plt
t
bo h
t
sd
Start delay (par. 10.06)
T
plt
Phase loss test (par. 99.16)
1
t
md
Magnetizing delay (par. 10.07)
2
t
tpv
Torque proving delay (par. 35.84)
3
t
tru
Torque ramp up time (par. 35.10)
t
boh
Brake open hold (internal delay of DriveSPC, t
boh
≈ 30 ms)
t
bod
Brake open delay (par. 35.04)
t
bcd
Brake close delay (par. 35.09)
t
mod
Modulation delay (par. 35.05)
t
trd
Torque ramp down time (par. 35.11)
n
cs
Brake close speed (par. 35.06)
T
s
Start torque (par. 35.81)
T
mem
Memorized torque (par. 03.05)
R
bs
Brake slip check region
4
1
Phase loss test, when disabled T
plt
= 0 s, when enabled T
plt
≈ 50 ms
2
AM: t
md
= parameter 10.07 DC MAGN TIME, PMSM: t
md
= 0 s
3
If torque is not proved within the torque proving time delay, the drive trips on fault TORQUE PROVE.
4
If torque proving is in progress and value in parameter 05.04 LIFT SPEED ACT is greater than value in parameter
35.85 SLIP SPEED LIM for a longer period than defined with parameter 35.86 SLIP FAULT DLY, the drive trips on
fault BRAKE SLIP.