User manual

TMCM-1180 and PD86-1180 Hardware Manual (V1.03 / 2011-DEC-02) 16
Copyright © 2011, TRINAMIC Motion Control GmbH & Co. KG
4.3.6 Step/Direction connector
A 2mm pitch 4 pin JST B4B-PH-K connector is used for connecting the Step/Dir interface.
Mating connector housing: PHR-4
Mating connector contacts: SPH-002T-P0.5S
4
1
Pin
Label
Description
1
OC_COM
Common supply / opto-coupler (+5V .. +24V)
2
OC_EN
Enable signal
3
OC_STEP
Step signal
4
OC_DIR
Direction signal
Table 4.5: Step/Dir connector
C
E
A
K
EN
DIR
STEP
OC_COM
OC_EN
OC_DIR
OC_STEP
GND
+3.3V
4k754k75
4k75
GND
I
const
= 8mA
I
const
= 8mA
Figure 4.12: Internal circuit of the Step/Dir interface