Understanding Ultra1500 I/O Specifications; Digital I/O Power Supply; Digital Inputs - Allen-Bradley Ultra1500 2092-DA1 User Manual

Understanding Ultra1500 I/O
Specifications
A description of the Ultra1500 input/output is provided starting below.

Digital I/O Power Supply

All Ultra1500 drives require an external 24V power supply for proper
operation of the digital inputs. The following table provides a description of
the digital I/O power supply.
Note: A single 24V power supply can be used to power the digital I/O on
multiple drives, provided the cumulative minimum current requirements
are met.
Parameter Description
I/O Power Supply Voltage range of the external power supply for
Voltage proper operation of the digital I/O.
I/O Power Supply Current draw per drive from the external power
Current supply for the digital inputs.

Digital Inputs

There are seven opto-isolated digital inputs. Any input can be configured for
one of the following functions using Ultraware software: Drive Enable,
Positive Overtravel, Negative Overtravel, Positive Current Limit, Negative
Current Limit, Fault Reset, Integrator Inhibit, Operation Mode Override, Zero
Speed Clamp Enable, Reset Multiturn Data, Preset Selects, Preset Direction,
Alternate Gain Select, Position Strobe, and Pause Follower.
Digital inputs are active low, current sourcing. All have the same configuration,
as shown in Figure 2.2.
Figure 2.2
Digital Input Circuit
Ultra1500
Drive
+24V IN
3.3k Ω
0.01 µF
INPUTS
Ultra1500 Connector Data
Minimum
21.6V
—
330 Ω
PS2801
Logic Grnd
Publication 2092-UM001D-EN-P — July 2005
2-5
Maximum
26.4V
64 mA
+5V
4.7k Ω