TMCM-1070 Hardware Manual • Hardware Version V1.00 | Document Revision V1.00 • 2016-Sept-16
14 / 23
Figure 10: Inputs with common anode input with >5V to 24V
The series resistors in the TMCM-1070 are 270mOhms. For operation with voltages higher than 5V an
additional external resistor Rexternal is required per input to limit the current. See Table 7 as reference for
additional external resistor values.
COMM Voltage (V) Value of Rexternal (Ω)
3.3
5
-
-
9
300
500
700
1K5
12
15
24
Table 7: Additional resistor reference values
Note
Rexternal Selection
Take care when selecting an additional external resistor. The resistor type must
have a fitting power rating. This depends on the voltage used at COMM input.
5.3 Optically Isolated Inputs with Common Cathode Input
The optocouplers inside TMCM-1070 are bidirectional types (AC/DC). Thus, COMM can also be used as
common cathode connection.
©2016 TRINAMIC Motion Control GmbH & Co. KG, Hamburg, Germany
Terms of delivery and rights to technical change reserved.
Download newest version at www.trinamic.com
Read entire documentation.
TRINAMIC [ TRINAMIC MOTION CONTROL GMBH & CO. KG. ]
