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394 Configuration
following parameters: 1.1, 1.2, and 90.1. See drive firmware manual for more
information.
How to configure limit hit situations
Example 1
: SMS trip limit hit
This example covers trip limit situations of SMS function with synchronous machines.
This example is valid when SMS-specific mute time is disabled (parameter
) or if encoder is used.
• parameter
= Disabled
• parameter
= 100 ms.
Note:
When a synchronous machine is started, there is a possibility of short (< 100
ms) error spikes in safe speed estimate which can cause an unnecessary trip if the
mute time is set too short. If the motor is rotated only in positive direction and
A
Motor torque
B
FSO speed signals
C
Motor speed estimate of the drive
A
B
C
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 ...