186
Load Monitor and Process Protection [400]
Section 11-4
cause a trip, and the motor will coast to standstill, when a missing motor
phase is detected during a period of 5 s.
Communication information
Overvolt control [424]
Used to switch off the overvoltage control function when only braking by brake
chopper and resistor is required. The overvoltage control function, limits the
braking torque so that the DC link voltage level is controlled at a high, but
safe, level. This is achieved by limiting the actual deceleration rate during
stopping. In case of a defect at the brake chopper or the brake resistor the
VSD will trip for “Overvoltage” to avoid a fall of the load e.g. in crane applica-
tions.
Note
Overvoltage control should not be activated if brake chopper is used.
Communication information
Default:
Off
Off
0
Function switched off to be used if no motor or very small
motor connected.
Trip
1
VSD will trip when the motor is disconnected. Trip message
“Motor Lost”.
Modbus Instance no/
DeviceNet no:
43363
Profibus slot/index
170/12
EtherCAT index (hex)
4d23
Fieldbus format
UInt
Modbus format
UInt
Off
A
Default:
On
On
0
Overvoltage control activated
Off
1
Overvoltage control off
On
A
Modbus Instance no/
DeviceNet no:
43364
Profibus slot/index
170/13
EtherCAT index (hex)
4d24
Fieldbus format
UInt
Modbus format
UInt
Summary of Contents for SX-F
Page 2: ......
Page 14: ...6 Table of contents...
Page 20: ...12 Glossary Section 1 6...
Page 32: ...24 Cabinet mounting Section 2 3...
Page 58: ...50 Connecting options Section 5 6...
Page 72: ...64 Load Monitor and Process Protection 400 Section 7 5...
Page 74: ...66 EMC standards Section 8 1...
Page 266: ...258 System Data 900 Section 11 9...
Page 274: ...266 Maintenance Section 12 3...
Page 284: ...276 Liquid cooling Section 13 12...