Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 214)

Section 4C
Connecting the 4-axis Servo Module
4C-16
Table 4C.D lists the servo module output specifications. This table is
provided as an aid to determining the compatibility of different servo
amplifiers and spindle drives. Table 12.A contains a list of compatible
analog servos. Input specifications are discussed in sections covering the
individual input devices. Refer to Table 4C.E for encoder feedback input
specifications.
Table 4C.D
8520-SM4 Servo Module Analog Output Specifications
Item Specification Remark
Output Voltage Range ± 10V
Analog Output Driver Single Ended Drive return connected to common.
Output Offset Voltage 500 m V Max.
Resolution 1.22mV 13 bits plus one sign bit (14 total)
Sampling Frequency 500 Hz
Output Current 5mA Max.
Load Range >2K ohms
Conversion Time 5ms
Differential
Non-Linearity
± 1 LSB Max. Monotonic over the entire temperature range.
LSB means least significant bit.
Gain Error ± 1 LSB Max.
Load Capacitance 0.01 m F Max.
4C.5.3
8520-SM4 Servo Module
Specifications