maxon motor
4-Q-DC Servoamplifier ADS 50/5
Operating Instructions
2
1
Safety Instructions
Skilled Personnel
Installation and starting of the equipment shall only be performed by experienced, skil-
led personnel.
Statutory Regulations
The user must ensure that the servoamplifier and the components belonging to it are
assembled and connected according to local statutory regulations.
Load Disconnected
For primary operation the motor should be free running, i.e. with the load disconnected.
Additional Safety Equipment
An electronic apparatus is not fail-safe in principle. Machines and apparatus must the-
re-fore be fitted with independent monitoring and safety equipment. If the equipment
breaks down, if it is operated incorrectly, if the control unit breaks down or if the cables
break, etc., it must be ensured that the drive or the complete apparatus is kept in a safe
operating mode.
Repairs
Repairs may be made by authorised personnel only or by the manufacturer. It is dange-
rous for the user to open the unit or make repairs to it.
Danger
Do ensure that during the installation of the ADS 50/5 no
apparatus is connected to the
electrical supply. After switching on, do not touch any live parts.
Max. Supply Voltage
Make sure that the supply voltage is between 12 and 50 VDC. Voltages higher than 53
VDC or of wrong polarity will destroy the unit.
Short circuit and earth fault
The ADS 50/5 amplifier is not protected against winding short circuits against ground
safety earth or Gnd!
Motor choke
The built in motor choke allows operation with almost all maxon DC motors with an
output power higher than 10 Watt. If necessary the motor continuous current must be
slightly reduced.
Generally the following applies:
[ ]
[ ]
[ ]
[ ]
[ ]
3
15
.
0
1
15
.
0
mH
L
mH
mA
I
s
V
V
mH
L
Motor
D
CC
extern
−
−
⋅
⎥⎦
⎤
⎢⎣
⎡
≥
•
Supply voltage V
CC
[V]
•
Nominal current (Max. continuous output current) I
D
[mA]
•
Terminal inductance L
Motor
[mH]
Sought value:
•
Additional required external inductance so that the continuous current only reduces
by max. 10% as a result of warming.
Electrostatic Sensitive Device (ESD)
maxon motor control
July 2009 Edition / Doc. No. 538837-07 / Subject to change
