Emerson Process Management ControlWave XFC - Manual (Page 26)

1-12 / Introduction CI-ControlWave XFC
each Analog Input. AI field power applied to each Analog Input can be supplied by an
external power source, or from a ControlWave XFC produced unregulated field power
supply (+V) [where +V ≈ Input Power - .6Vdc (and doesn’t exceed +15Vdc)]. Each Analog
Input support 1-5V operation.
AIs are supplied with a two hertz low pass filter and surge suppression (via 16Vdc
Transorbs).
Analog Output circuitry consists of a 16-bit resolution Digital to Analog Converter, and a V
to I circuit and provides a 4-20mA current sink.
RTD
DI
1
TR
- TR
+ RX
D
RX
D
RT
S CT
S DT
R DC
D
TX
D TX
D
G G
DI2
D01
P1 P2
G
G
+V +V AI
2 AI
3 AO +V +V
G G G
AI
1
POWER
NETWORK LOCAL RS485
+
+ +
+V
G G G
D0
2 D0
3 D0
4
J3
J2
J4
J5
J6
Figure 1-6 - ControlWave XFC Terminal Plate
1.3.5.1.2 Non-isolated Digital I/O (also see Section 2.3.4.4)
Terninal Plate, Term. Block connector J5 provides interface to 2 Digital Inputs and 4
Digital Outputs. All Digital Inputs support dry contact inputs that are pulled internally to
3.6 Vdc when the field input is open. Source current will be 60uA from the 3.6V supply. 15
millisecond input filtering protects against contact bounce.
Digital Outputs have a 30V operating range and are driven by Open Drain FETs that sink
400 mA (Max.) at 30Vdc. The maximum output frequency is 1 Hz. Transorbs provide surge
suppression between each signal and ground.
1.3.5.1.3 Non-isolated High Speed Counter Inputs (also see Sections 2.3.4.7)
Terninal Plate, Term. Block connector J5 also provides the interface to two externally
sourced single ended High Speed Counter Inputs (HSCI). Signal conditioning circuitry
provides 20 microsecond filtering. All Input circuits have surge suppression. HSC inputs
support externally generated, internally sourced input signals.