maxon motor control
EPOS2 Positioning Controller
Document ID: rel4270
3-11
EPOS2 70/10 Hardware Reference
Edition: December 2013
© 2013 maxon motor. Subject to change without prior notice.
3
Technical Data
3.1
Electrical Data
Table 3-3
Electrical Data – Rating
Table 3-4
Electrical Data – Inputs
Rating
Nominal power supply voltage V
CC
11…70 VDC
Nominal logic supply voltage V
C
(optional)
11…70 VDC
Absolute minimum supply voltage
10 VDC
Absolute max. supply voltage
75 VDC
Max. output voltage
0.9 • V
CC
Max. output current I
max
(<1sec)
25 A
Continuous output current I
cont
10 A
Switching frequency
50 kHz
Max. efficiency
94%
Sample rate PI – current controller
10 kHz
Sample rate PI – speed controller
1 kHz
Sample rate PID – positioning controller
1 kHz
Max. speed @ sinusoidal commutation (motors with 1 pole pair)
25 000 rpm
Max. speed @ block commutation (motors with 1 pole pair)
100 000 rpm
Built-in motor choke per phase
25
μ
H / 10 A
Inputs
Hall sensor signals
Hall sensor 1, Hall sensor 2 and Hall sensor 3
for Hall effect sensor ICs (Schmitt trigger with
open collector output)
Encoder signals
A, A\, B, B\, I, I\ (max. 5 MHz)
internal line receiver EIA RS422 Standard
Digital Input 1 (“General Purpose”), optically isolated
+9…+24 VDC (Ri = 1.8 k
Ω
)
Digital Input 2 (“General Purpose”), optically isolated
+9…+24 VDC (Ri = 1.8 k
Ω
)
Digital Input 3 (“General Purpose”), optically isolated
+9…+24 VDC (Ri = 1.8 k
Ω
)
Digital Input 4 (“Home Switch”), optically isolated
+9…+24 VDC (Ri = 1.8 k
Ω
)
Digital Input 5 (“Positive Limit Switch”), optically isolated
+9…+24 VDC (Ri = 1.8 k
Ω
)
Digital Input 6 (“Negative Limit Switch”), optically isolated
+9…+24 VDC (Ri = 1.8 k
Ω
)
Digital Input 7 (“High Speed Command”)
internal line receiver EIA RS422 Standard
or (“Sin/Cos input”), resolution 12-bit, ±1.8 V
(differential)
Digital Input 8 (“High Speed Command”)
internal line receiver EIA RS422 Standard
or (“Sin/Cos input”), resolution 12-bit, ±1.8 V
(differential)
Digital Input 9 (“High Speed Command”)
internal line receiver EIA RS422 Standard
Digital Input 11 (“Power Stage Enable”), optically isolated
+9…+24 VDC (Ri = 1.8 k
Ω
)
Analog Input 1
resolution 12-bit 0…+5 V (differential)
Analog Input 2
resolution 12-bit 0…+5 V (differential)
+V Opto IN
+12…+24 VDC
CAN ID (CAN identification)
ID 1…127 configurable via DIP switch or
software
