maxon motor
4-Q-EC Servoamplifier DES 70/10
Operating Instructions
5.1.3 “Hall sensor 1”, “Hall sensor 2”, “Hall sensor 3”
On one hand the Hall sensors detect the rotor position during start-up and on
the other hand monitor the rotor position during operation.
The “Hall sensor“ inputs are protected against overvoltage.
Voltage value “low”
max. 0.8 V
Voltage value “high”
min. 2.4 V
Internal pull-up resistance
2.7 k
Ω
a5 VDC
Suitable for Hall effect sensors IC using Schmitt trigger with open collector out-
put.
5.1.4 “STOP”
If a voltage is given at “STOP”, the motor speed will be stopped with maximum
deceleration (adjusted value at potentiometer P3 I
max
) until motor shaft stands
still.
If the “STOP” input is not switched off (floating) or is connected to Gnd, the mo-
tor speed is not affected.
The “STOP” input is protected against overvoltage.
Input resistance
17 k
Ω
(+5 V)
12 k
Ω
(+24 V)
“STOP” disabled
Minimum input voltage
0 VDC
Maximum input voltage
+0.8 VDC
“STOP” enabled
Minimum input voltage
+2.4 VDC
Maximum input voltage
+50 VDC
5.1.5 Toggle monitor signal “Digital 1”
If the “Digital 1” input is not switched on (floating) or is connected to Gnd, the
actual motor speed n is given at the “Monitor” output.
If a voltage is given at “Digital 1”, the actual motor current l is given at the
“Monitor” output.
The “Digital 1” input is protected against overvoltage.
Input resistance
17 k
Ω
(+5 V)
12 k
Ω
(+24 V)
“Monitor n” enabled
Minimum input voltage
0 VDC
Maximum input voltage
+0.8 VDC
“Monitor I” enabled
Minimum input voltage
+2.4 VDC
Maximum input voltage
+50 VDC
8
maxon motor control
April 2006 Edition / Subject to change
