Digital Stepper Drive DM320T
10
Figure 10: Sequence chart of control signals
Remark:
a) t1: ENA must be ahead of DIR by at least 5
s. Usually, ENA+ and ENA- are NC (not connected). See
“Connector P1 Configurations” for more information.
b) t2: DIR must be ahead of PUL effective edge by 5
s to ensure correct direction;
c) t3: Pulse width not less than 7.5
s;
d) t4: Low level width not less than 7.5
s.
11. Protection Functions
To improve reliability, the drive incorporates some built-in protections features.
Priority
Time(s) of
Blink
Sequence wave of red LED
Description
1st
1
Over-current protection activated when peak
current exceeds the limit.
2nd
2
Over-voltage protection activated when drive
working voltage is greater than 34VDC
3nd
3
Reserved.
When above protections are active, the motor shaft will be free or the red LED blinks. Reset the drive by repowering it
to make it function properly after removing above problems.
