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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
Содержание SX-F
Страница 2: ......
Страница 14: ...6 Table of contents...
Страница 20: ...12 Glossary Section 1 6...
Страница 32: ...24 Cabinet mounting Section 2 3...
Страница 58: ...50 Connecting options Section 5 6...
Страница 72: ...64 Load Monitor and Process Protection 400 Section 7 5...
Страница 74: ...66 EMC standards Section 8 1...
Страница 266: ...258 System Data 900 Section 11 9...
Страница 274: ...266 Maintenance Section 12 3...
Страница 284: ...276 Liquid cooling Section 13 12...