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Analog outputs, Analog outputs 267 – Watlow PPC-2000 User Manual

Page 295

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PPC-2000 User’s Guide

Chapter 7: Specifications

Doc.# 30002-00 Rev 2.3

Watlow Anafaze

267

Table 7.81

Inputs

Table 7.82

Power Requirements

Analog Outputs

Table 7.83

Analog Output Specifications

Data

4mA maximum to dc COM
Open collector or HC CMOS logic levels

Clock

0.5mA max to dc COM
Open collector or HC CMOS logic levels

Maximum Clock Rate

10 kHz (333 updates/second)

Voltage

4.75 to 5.25Vdc @ 300mA max

Current

210mA typical @ 20Vdc out

Absolute Maximum
Common Mode Voltage

Measured between output pins and controller
common: 1000V

Resolution

15 bits (plus polarity bit for voltage outputs)

(0.305mV for 10V output range)

(0.00061mA for 20mA output range)

Accuracy (calibrated for
voltage output)

For voltage output:
± 0.005V (0.05% at full scale)

For current output: +/ 0.1mA (0.5% at full scale)

Temperature coefficient

440 ppm/ °C typical

Isolation Breakdown
Voltage

1000V between input power and signals

Current

0-20mA (500 Ohm load max.)

Voltage

0-10Vdc with 10mA source capability

Output Response Time

1 ms typical

Update Rate

Once per controller A/D cycle nominal. Twice
per second maximum for 60 Hz clock rate.
Output changes are step changes due to the
fast time constant. All SDAC loop outputs are
updated at the same time.