Adept s350 Cobra - Manual (Page 46)

Chapter 4: MotionBlox-40R
XIO Output Signals
The eight digital outputs share a common, high-side (sourcing) driver IC. The driver is
designed to supply any kind of load with one side connected to ground. It is designed for a
range of user-provided voltages from 10 to 24 VDC, and each channel is capable of up to 0.7 A
of current. This driver has overtemperature protection, current limiting, and shorted-load
protection. In the event of an output short or other overcurrent situation, the affected output of
the driver IC turns off and back on automatically to reduce the temperature of the IC. The
driver draws power from the primary 24 VDC input to the robot through a self-resetting
polyfuse.
The outputs are accessed through direct connection to the XIO connector (see Table 4-7), or
through the optional XIO Termination Block. See the documentation supplied with the
Termination Block for details.
XIO Output Specifications
Table 4-9. XIO Output Circuit Specifications
Parameter Value
Power supply voltage range See Table 3-2.
Operational current range, per
channel I
out
≤ 700 mA
Total Current Limitation, all
channels on. I
total
≤ 1.0 A @ 50° C ambient
I
total
≤ 1.5 A @ 25° C ambient
On-state resistance (I
out
= 0.5 A) R
on
≤ 0.32 Ω @ 85° C
Output leakage current I
out
≤ 25 µA
Turn-on response time 125 µsec max., 80 µsec typical
(hardware only)
Turn-off response time 60 µsec. max., 28 µsec typical
(hardware only)
Output voltage at inductive load
turnoff (I
out
= 0.5 A, Load = 1 mH)
(+V - 65) ≤ V
demag
≤ (+V - 45)
DC short circuit current limit 0.7 A ≤ I
LIM
≤ 2.5 A
Peak short circuit current I
ovpk
≤ 4 A
Adept Cobra s350 User's Guide, Rev. D
Page 46 of 94