Moog MSD Servo Drive Series, Помощь по устройству, Страница: 246 / 320

Usage examples

Change to input voltage range of analog torque scaling

Change to input voltage range of speed override function

Change to switching threshold of a digital input function
Fig. 9.9: Scaling of an analog channel
Example: Analog torque scaling
The standard setting for the drive is an input voltage range of 0 V to +10 V,
corresponding to 0 % to 100 %. With this setting, any value between -10 V and 0 V
corresponds to 0 %.

Say that you want an input voltage range of -10 V to +10 V, in which case -10
V would correspond to 0 % of the torque and +10 V to 100 % of the torque.
o
In
min
= -10 V, Out
min
= 0 V
MOOG
ID No.: CB40859-001 Date: 02/2018
MSD Servo Drive - Device Help
24 6
9 Input/Output settings
o
In
max
= +10 V, OUT
max
= +10 V

The corresponding formulas are: and

Resulting in a gain of G = 0.5 and an offset of O = 5 V
9.4.4 Profile mode and analog inputs
Parameter P 301[0] - CON_REF_Mode determines whether the reference values
are processed via the profile generator (setting “PG(0)”) or directly (setting “IP(1)”). If
direct input via IP mode is selected, only the input filters are active. The analog
values are scanned and filtered in the torque control cycle and then directly
transferred as references for the speed or torque control.
CAUTION! Your system/motor may be damaged if put into operation in
an uncontrolled or inadequate manner.
Failure to exercise caution or follow proper working
procedures may result in damage to your system/motor.

Before the “Start” step, make absolutely sure that a valid
setpoint has been entered, as the configured setpoint
will be immediately transmitted to the motor after the
motor control function starts, which may result in the
motor accelerating unexpectedly.