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Configuration 379
Relevant parameters for this configuration:
• Deceleration time (drive parameter 23.13 Deceleration time 1)
• SLS activation delay: 2000 ms (
= 2000 ms)
•
Time to zero speed with STO and modoff
: 2500 ms.
1. SLS request is activated (
= DI X113:2 & X114:2). SLS time
delay monitoring is started (
= 2000 ms). Deceleration to
SLS limit speed is started (drive parameter 23.13 Deceleration time 1).
2. Modulation is lost. Motor starts to coast to a stop. FSO stores last valid safe
speed estimation value. SLS time monitoring limit is kept active also when
modulation is lost (
= 2000 ms).
3. Last valid speed estimation value is higher than SLS trip limit speed when SLS
time monitoring limit has elapsed (
= 2000 ms). STO
indication goes on (
= DO X113:7); see chapter
on page
.
4.
delay starts when drive modulation is lost. If modulation does not return,
delay has elapsed.
When drive modulation is lost, last valid speed estimate is stored to FSO module until
modulation comes back or monitoring limit is reached. Time monitoring is kept active
also when modulation is lost during SLS deceleration ramp. The time monitoring
begins when SLS is requested. A time monitoring hit due to lost modulation is
generated when SLS time delay has elapsed. SLS hit is indicated and STO is
activated. Drive restart is not possible until
delay has elapsed.
SLS indication
Motor speed
Time
1
3
4
2
B
E
STO active
Drive modulation
SLS request
SLSx.04 time
delay monitoring
C
D
STO.14 delay
SLSx.04
Summary of Contents for FSO-21
Page 1: ... OPTIONS FOR ABB DRIVES FSO 21 safety functions module User s manual ...
Page 4: ......
Page 16: ...16 Safety instructions ...
Page 34: ...34 Safety information and considerations ...
Page 52: ...52 Overview ...
Page 236: ...236 PROFIsafe ...
Page 265: ...PROFIsafe 265 2 Select your CPU from the list 3 Install the FENA 21 GSDML file ...
Page 275: ...PROFIsafe 275 20 In ABB_Drive FB add blocks DPRD_DAT and DPWR_DAT 21 Insert values to blocks ...
Page 282: ...282 PROFIsafe 5 To read the diagnostic messages select the I O Device Diagnostics tab ...
Page 286: ...286 PROFIsafe ...
Page 304: ...304 Installation ...
Page 400: ...400 Configuration ...
Page 488: ...488 Verification and validation ...
Page 506: ...506 Fault tracing ...
Page 514: ...514 Maintenance ...
Page 536: ...536 Technical data ...