maxon motor
4-Q-EC Servoamplifier DES 70/10
Operating Instructions
5.2 Outputs
5.2.1 Auxiliary
voltage
“V
CC
Hall +5 V / 50 mA OUT”
An internal auxiliary voltage of +5 V is provided for powering the Hall sensors.
The output is protected against overload.
Output voltage
+5 VDC
Maximum output current
50 mA
5.2.2 Auxiliary voltage “+5 V / 20 mA OUT”
An internal auxiliary voltage of +5 V is provided:
•
Control of inputs: “Enable”, “Digital 1” and “Digital 2”
•
Supplying external potentiometer 1 k
Ω
The output is protected against overload.
Output voltage
+5 VDC
Maximum output current
20 mA
5.2.3 “Monitor“
Speed monitor “Monitor n“
“Digital 1“ input
0 ... +0.8 VDC (or not connected)
The speed monitor is primarily intended for the qualitative estimation of the dy-
namics. The absolute speed is determined by the properties of the speed sen-
sors and by the setting of the n
max
potentiometer. The signal is proportional to
the speed.
DIP-Switch
S10
Ð
OFF
DIP-Switch
S10
Ï
ON
Output voltage range
0 ... +5 VDC
-10 ... +10 VDC
Ripple
max. 0.02 V
max. 0.08 V
Resolution
approx. 0.0125 V
(400 Steps)
approx. 0.05 V
(400 Steps)
Output resistance R
O
1 k
Ω
1
k
Ω
Cutoff frequency f
g
900 Hz
900 Hz
Example:
-n
max
corresponding to
0 V
-10 V
0 rpm corresponding to
2.5 V
0 V
+n
max
corresponding to
5 V
+10 V
Current monitor “Monitor I“
“Digital 1“ input
+2.4 ... +50 VDC
The servoamplifier makes a current actual value available for monitoring pur-
poses. The signal is proportional to the mean value of the motor current.
DIP switch
S10
Ð
OFF
DIP switch
S10
Ï
ON
Output voltage range
0 ... +5 VDC
-10 ... +10 VDC
Ripple
max. 0.02 V
max. 0.08 V
Resolution
approx. 0.0125 V
(400 Steps)
approx. 0.0500 V
(400 Steps)
Output resistance R
O
1 k
Ω
1
k
Ω
Cutoff frequency f
g
900 Hz
900 Hz
Gradient
≈
12 A/V
≈
3 A/V
Example:
-30 A corresponding to
0 V
-10 V
0 A corresponding to
2.5 V
0 V
+30 A corresponding to
5 V
+10 V
The “Monitor“ output is protected against overload.
10
maxon motor control
April 2006 Edition / Subject to change
