Technical data
Synchronous servomotor
33
Version: 2.1
10.2
AM812x
Electrical data
Symbol
[Unit]
AM8121-F
AM8121-F at
EL7201
AM8122-F
AM8122-F at
EL7201
AM8122-J
Standstill torque
M
0
[Nm]
0,5
0,35
0,8
0,56
0,8
Standstill current
I
orms
[A]
4,0
2,8
4,0
2,8
8,0
Max. mech. speed
N
max
[min
-1
]
12000
12000
12000
12000
12000
Max. mains voltage
U
N
[V
DC
]
50
50
50
50
50
U
N
= 24 VDC Rated speed
N
n
[min
-1
]
1000
1000
600
600
2000
Rated torque
M
n
[Nm]
0,5
0,35
0,8
0,56
0,78
Rated power
P
n
[W]
52
36
50
35
163
U
N
= 48 VDC Rated speed
N
n
[min
-1
]
3000
3000
2000
2000
4500
Rated torque
M
n
[Nm]
0,5
0,35
0,8
0,56
0,75
Rated power
P
n
[W]
157
110
167
117
353
Peak current
I
0max
[A]
17
5,66
22,4
5,66
48,0
Peak torque
M
0max
[Nm]
1,97
0,69
4,06
1,09
4,06
Torque constant
K
Trms
[Nm/A]
0,125
0,125
0,2
0,2
0,1
Voltage constant
K
Erms
[mVmin] 8
8
13
13
6
Winding resistance
R20 [Ω]
1,6
1,6
1,5
1,5
0,34
Winding inductance
L [mH]
3
3
3,7
3,7
0,7
* reference flange aluminium 230 mm x 130 mm x 10 mm
Installation of a shaft seal ring leads to a reduction of the rated values.
Mechanical data
Symbol [Unit]
AM8121
AM8122
Rotor moment of inertia (without brake)
J [kgcm
2
]
0,134
0,253
Rotor moment of inertia (with brake)
J [kgcm
2
]
0,156
0,276
Number of contacts
6
6
Static friction torque
M
R
[Nm]
0,002
0,004
Thermal time constant
t
TH
[min]
10
13
Weight (without brake)
G [kg]
1,00
1,30
Weight (with brake)
G [kg]
1,10
1,60
Permitted radial force at shaft end
F
R
[N]
See 10.2.2
Permitted axial force
F
A
[N]
Data for optional brake
Data
Symbol [Unit]
AM812x
Holding torque at 120 °C
M
BR
[Nm]
0,8
Supply voltage
U
BR
[V
DC
]
24 +6 -10 %
Electrical power
P
BR
[W]
10
Current
I
on
[A]
0,3
Release delay time
t
BRH
[ms]
8
Application delay time
t
BRL
[ms]
12
