maxon motor
Operating Instructions
4-Q-DC Servo Control LSC 30/2
5.1.2 “Disable”
Enabling or disabling the power stage.
If the “Dis IN” connection is not connected or at Gnd potential,
the power stage is activated (Enable).
Release “Enable”
minimum input voltage
Gnd
maximum input voltage
+1 VDC referenced to Gnd
maximum input current
2 mA
If the “Dis IN” terminal is connected with “Dis+V” or
the voltage is higher than V
CC
-1V, the power stage becomes high impedant and
the motor shaft freewheels and slows down (Disable).
Block “Disable”
minimum input voltage
V
CC
- 1 VDC
maximum input voltage
V
CC
maximum input current
2 mA
Wiring examples:
a) Switch open = “Disable”; switch closed = “Enable”
4
“Gnd”
10
“Dis IN”
3
“+Vcc”
4k7
0.25W
4k7
0.25W
4k7
0.25W
4k7
0.25W
b) Switch open = “Enable”; switch closed = “Disable”
10
“Dis IN”
“Dis+V” terminal [11] or “+Vcc” terminal [3]
5.1.3 DC
tacho
+T
positive tacho voltage
terminal [14]
-T
negative tacho voltage
terminal [13]
minimum input voltage
2.0 V
maximum input voltage
50.0 V
Input impedance
approx. 20 k
Ω
Speed control range:
The speed range is set using Potentiometer
P1 n
max
(max. speed at maximum
set value).
For full speed control with
±
10 V or
±
3.9 V, the tacho input voltage range must
be at least
±
2 V.
Example for a DC-tacho with 0.52 V / 1000 rpm:
2.0 V tacho voltage is equivalent to a speed of approx 3850 rpm. If the full set
value range has been used, the lowest adjustable speed with the n
max
potentiometer is 3850 rpm.
Lower speed ranges can be reached through a reduced set value range or by
using a DC tacho with a higher output voltage, such as 5 V / 1000 rpm.
June 2010 Edition / Subject to change
maxon motor control
9
