User`s guide

Series D8 User’s Guide Chapter 8: Specifications

Doc. 0600-3120-2000 Watlow Anafaze 195

Serial DAC Analog Outputs

Table 8.32 Serial DAC Analog Output Specifi-

cations

Absolute Maximum Common

Mode Voltage

Measured between output terminals and controller common:

1000 V

Resolution

15 bits (plus polarity bit for voltage outputs)

(0.305 mV for 10 V output range)

(0.00061 mA for 20 mA output range)

Accuracy (Calibrated for Voltage

Output)

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

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

Temperature coefficient 440 ppm/ °C typical

Isolation Breakdown Voltage 1000 V between input power and signals

Current 0 to 20 mA with 10 V minimum compliance (500 Ω load)

Voltage 0 to 10 Vdc with 10 mA 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 con-

stant. All Serial DAC loop outputs are updated at the same

time.