Rockwell Automation 1398-DDM-xxx ULTRA 100 Series Drives Installation Manual - Manual (Page 78)

Publication 1398-5.2 – PDF 1997
6-14 Interfaces
Command Input
The analog command signal to the drive has a range of ±10 Volts. The
signal is either a torque or a velocity command, depending on the
software configuration of the drive. The differential input is processed
by a 14 bit analog to digital converter (ADC) to produce a digital
value.
Figure 6.17 Drive Output Connected to Active High (Sinking) Input
Figure 6.18 External Current Limit Circuit
Table 6.11: Analog Inputs (I LIMIT)
Analog Input Pin Number Function/Description
Current Limit
(I LIMIT) J1-27 Limits the peak current command, which produces
torque
Table 6.12: External Current Limit Input Specification
Parameter Description Minimum Maximum
Maximum Current Short circuit between the input and
ground -1.5 mA
Input Signal
Range Allowable voltage applied to the input 0 Volts +10 Volts
I/O COM
I/O Pwr
INPUT OUTPUT
(Drive)
I/O COM
J1-6 or J1-13
1K
Drive J1
+15 Volts
10K
20K .01 µ F
20K
-
+
I LIMIT