TECO F33 Series, Instruction Manual, Page: 119 / 192

116 Functional Description
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 con-
trolled at a high, but safe, level. This is achieved by lim-
iting 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 applications.
Communication information
11.5 I/Os and Virtual
Connections [500]
Main menu with all the settings of the standard inputs
and outputs of the VSD.
11.5.1 Analogue Inputs [510]
Submenu with all settings for the analogue inputs.
AnIn1 Function [511]
Sets the function for Analogue input 1. Scale and range
are defined by AnIn1 Advanced settings [513].
Communication information
NOTE: Overvoltage control should not be activated if
brake chopper is used.
Default: On
On 0 Overvoltage control activated
Off 1 Overvoltage control off
Modbus Instance no/DeviceNet no: 43364
Profibus slot/index 170/13
Fieldbus format UInt
Modbus format UInt
424 Over Volt Ctl
Stp On
A
Default: Process Ref
Off 0 Input is not active
Max Speed 1 The input acts as an upper speed limit.
Max Torque 2 The input acts as an upper torque limit.
Process Val 3
The input value equals the actual process
value (feedback) and is compared to the
reference signal (set point) by the PID con-
troller, or can be used to display and view
the actual process value.
Process Ref 4
Reference value is set for control in proc-
ess units, see Process Source [321] and
Process Unit [322].
Modbus Instance no/DeviceNet no: 43201
Profibus slot/index 169/105
Fieldbus format UInt
Modbus format UInt
NOTE: When AnInX Func=Off, the connected signal will
still be available for Comparators [610].
511 AnIn1 Fc
Stp Process Ref
A