Foldback Current; Digital Input - Servotronix CDHD2S User Manual

Application Setup

6.8 Foldback current

Foldback current is a mechanism used by CDHD2S to protect the drive and motor from
overheating due to excess current. Set the foldback current of the drive and motor independently.
The foldback current limits the root mean square (rms) value of the current supplied to the
drive and/or motor.
When a motor is selected from the ServoStudio2 motor library, the foldback current
parameters are preset and written to the drive. These parameters are defined by the manufacturer
and cannot be modified by the user; if you want to modify these parameters, please contact
technical support.
Use the ServoStudio2 "Foldback Current" screen to view and configure motor and drive
foldback current parameters.
The following parameters are used to monitor and configure the foldback performance.
VarCom
IFOLD
DICONT
IFOLDFTHRESH
IFOLDWTHRESH
DIPEAK
MIFOLD
MICONT
MIFOLDFTHRESH
MIFOLDWTHRESH
MIPEAK
MFOLDD
MFOLDT
MFOLDR
MFOLDDIS

6.9 Digital Input

The CDHD2S features both regular and fast optoisolated digital inputs. The number of inputs
varies with the model. Please refer to the Input/Output Specifications table.
The transmission delay of conventional digital input is less than 1 millisecond.
⚫
The transmission delay of fast digital input is less than 1 microsecond.
⚫
Use the ServoStudio2 Digital IO screen to configure and view digital input status.
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Table 6-14
Description
Drive foldback current
Drive continuous current
Drive foldback fault threshold
Drive foldback warning threshold
Drive peak current
Motor foldback current
Motor continuous current
Motor foldback fault threshold
Motor foldback warning threshold
Motor peak current
Motor foldback time delay
Motor foldback time constant
Motor foldback recovery time
Enable/Disable motor foldback