NI SMD-7613/7614/7615/7616 User Manual
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© National Instruments
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3
•
Never pull out or plug in the product while the system is live. There is a danger of electric
arcing and danger to persons and contacts.
•
After powering down the product, wait at least ten minutes before touching live sections of
the equipment or undoing connections (e.g., contacts, screwed connections). Capacitors
can store dangerous voltages for long periods of time after power has been switched off. To
be safe, measure the contact points with a meter before touching.
Be alert to the potential for personal injury. Follow the recommended precautions and safe
operating practices. Safety notices in this manual provide important information. Read and be
familiar with these instructions before attempting installation, operation, or maintenance. The
purpose of this section is to alert users to possible safety hazards associated with this equipment
and the precautions that need to be taken to reduce the risk of personal injury and damage to the
equipment. Failure to observe these precautions could result in serious bodily injury, damage to
the equipment, or operational difficulty.
Block Diagram
Figure 1.
NI SMD-761x Block Diagram
INPUT X
3
OUTPUT Y
3
OUTPUT Y4
ANALOG IN1
ANALOG IN2
Ethernet
INPUT X1
Extern
a
l Power
Su
pply
761
3
/7615: 24-48 VDC
7614/7616: 24-80 VDC
INPUT X2
INPUT X4
INPUT X5
INPUT X6
X7/CWLIM
X8/CCWLIM
OUTPUT Y1
OUTPUT Y2
Optic
a
l
I
s
ol
a
tion
D
S
P
Intern
a
l
Logic
Su
pply
MO
S
FET
PWM
Power
Amplifier
Motor
Encoder
S
t
a
t
us
7615/7616
Only