Rockwell Automation 8720MC High Performance Drives Installation Manual - Manual (Page 54)

Publication 8720MC-IN001D-EN-P — December 2002
2-20 8720MC Connector Data
Analog Outputs
The 8720MC includes two analog outputs (not supported on the
SERCOS models) that can be configured through software to represent
drive variables. Figure 2.17 shows the configuration of the analog
output. The following table provides a description of the analog
output.
Figure 2.17
Analog Output Configuration
The following table provides a description of the analog output
specifications.
SERCOS Connections
Two fiber-optic connectors (transmit and receive) are provided on the
drive. The table below lists SERCOS communication specifications.
50 Ω
0.01 µF
AOUT
IMPORTANT
Output values can vary during power-up until the
specified power supply voltage is reached.
Parameter Description Minimum Maximum
Resolution
Number of states that the output signal is divided
into, which is 2
(to the number of bits)
.
12 Bits —
Output
Current
Current capability of the output. -20 mA +20 mA
Output
Signal Range
Range of the output voltage. -10V +10V
Offset Error Deviation when the output should be at 0V. — 100 mV
Gain Error
Deviation of the transfer function from unity gain,
expressed in a percent of full scale.
— 5%
Bandwidth Frequency response of the analog output 50 Hz 7.2 Khz (-3 db)
Specification Description
Data Rates 2, 4, and 8 MBd
Node Addresses 00-99