Isolation
Analog common side connected to Chassis
Ground.
Response Time
100ms typical for 10% to 90% signal change
14.8 Analog Outputs
Output Points
2 (when optional 5305 analog outputs installed)
Output Signal
Range
0-20mA
Maximum Load
Resistance
925Ω with 24Vdcinput voltage or when internal 24V power
supply is on.
375Ω with 12Vdc input voltage
250Ω with input voltage at power supply turnoff
Output Type
Single ended regulation on positive side with common
negative return
Isolation
Analog common side connected to Chassis Ground.
Resolution
12 bits
Accuracy
Specified from 0.5-20mA
±0.15% of full scale at 25
o
C (77
o
F)
±0.25% of full scale over temperature range
Noise and
Ripple
0.04% maximum
Transient
Protection
Transient: 2.5kV surge withstand capability as per
ANSI/IEEE C37.90.1-1989
Response Time
0.5ms to 2ms for 10% to 90% signal change
Power
Requirements
24V boost power supply off: Vin X output current.
24V boost power supply on: 27 X output current.
14.9 Counter Inputs
Counter Inputs
Counter 0 Digital Input Counter
Counter 1 Turbine Meter inputs
Counter 2 Turbine Meter inputs
Digital Input
Counter 0
Maximum frequency 10Hz.
Dry contact input.
Wetting current typically 5mA.
Contact closure to ground is ON.
Open input is OFF.
Counter 1 and 2
Designed for use with low voltage, turbine meter outputs.
Jumper link selectable for use with turbine meter amplifiers
or dry contact closure.
Counter 1 and 2
Turbine Meter
Sensitivity
Minimum input 30mVp-p at 5-50Hz.
Minimum input 150mVp-p at 150Hz.
Minimum input 650mVp-p at 5kHz.
Minimum input 750mVp-p at 10kHz.
Maximum input 4Vp-p using internal amplifier.
Counter 1 and 2
Dry Contact
Maximum input 10Vp-p without internal amplifier.
Maximum frequency 10KHz.
SCADAPack LP Hardware Manual
May 26, 2006
44
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