DFE STEADYWEB 6 Technical Reference Manual page 10

1.4 SPECIFICATIONS continued . . .
Transducer Excitation:
• 5VDC for STD transducers, 10VDC for XR
transducers (automatically software set per sensed
transducer resistance, or manually fixed through user
configuration settings)
• 35mA per half bridge (70mA total) software short
circuit protection
• Duration of excitation short-circuit: Infinite
Digital Inputs:
• Soft Start, Hold, Ratio, Remote Tension On, Remote
Tension Off, Remote Auto, Remote Manual
• Activated by contact with power ground (falling edge)
• Internal weak pull-up resistors to 3.3VDC
• Max 24VDC input protection
Digital Outputs:
• 3.3V digital diameter alarm output
Tension Precision:
• Max error of 1% over temperature range. 0.1%
Typical
Calibration Range:
• 50:1 max
Transducer Tension Analog to Digital Converter
(ADC) Resolution:
• 16-Bit at 242Hz sample rate
• 20.62μV Resolution with 5V Excitation (STD
Transducers)
• 41.24μV Resolution with 10V Excitation (XR
Transducers)
Control Output Digital to Analog Converter (DAC)
Resolution (D Version):
• 12-Bit at 242Hz update rate.
• -10VDC to 10VDC Out: 6.0mV Resolution
• 4-20mA Out: 9.6μA Resolution
Pneumatic Enclosure (Version P only):
• Air Input: 125 psi Max.
• Air Output: 2 to 75 psi (0.07 to 5.17 bar)
• Servo Valve Drive: Signal: 4 to 20mA
• Air Connection In: 3/8" NPT
• Air Connection Out: 1/4" NPT
4
Tension Output:
All Versions:
• 0 to +10VDC OR 0 to 1mA (jumper-selectable)
• 0 to +10VDC max loading is 5mA. This requires a
2000 Ohm or greater input resistance for equipment
connected to this output
• 0 to +10VDC and 0 to 1mA signal capable of under-
range and over-range, -14% to 120% of full scale (-
1.4VDC to 12VDC / -0.14mA to 1.2mA), to indicate
over-range or error conditions
• 0 to 1mA meter output designed for 50 Ohm
impedance meter.
Analog Signal Inputs:
• Line Speed, Roll Speed, Diameter, Remote Auto
Setpoint, Remote Manual Setpoint, RTA1, RTA2
• Designed for 0-10VDC input signal, 0-12VDC range
sense capability
• Max 24VDC input protection
Zero (Tare) Range:
• Minimum 95% of transducer rating
Control Loop Time:
• Less than 5mSec
Analog Signals* Analog to Digital Converter (ADC)
Resolution:
• * (Line Speed, Roll Speed, Diameter, Remote Auto
Setpoint, Remote Manual Setpoint, RTA1, RTA2)
• 12-Bit at 242Hz sample rate
• 2.93mV Resolution
Tension Output Digital to Analog Converter (DAC)
Resolution:
• 12-Bit at 242Hz update rate.
• 0-10VDC Out: 3.3mV Resolution
• 0-1mA Out: 0.33uA Resolution
Weight:
• DC Panel Mount: 1.6 lbs. (0.73 kg)
• AC Panel Mount: 3.1 lbs. (1.41 kg)
• DC Enclosure Mount:
• AC Enclosure Mount:
• Pneumatic Module: 4.6 lbs. (2.09 kg)
• High Voltage Output Module:
5.1 lbs. (2.32 kg)
6.6 lbs. (3.00 kg)
2.9 lbs. (1.32 kg)