Red Lion PCU - Manual (Page 3)

3
SPECIFICATIONS (Cont’d)
8. SECONDARY OUTPUT (Optional):
Control: PID or ON/OFF
Output: Time proportioning or linear DC
Hardware: Plug-in, replaceable output modules
Cycle time: Programmable
Proportional Gain Adjust: Programmable
Deadband Overlap: Programmable
9. LINEAR DC OUTPUT (Optional): With digital scale and offset,
programmable deadband and update time.
4 to 20 mA:
Resolution: 1 part in 3500 typ.
Accuracy: ±(0.1% of reading + 25 µA)
Compliance: 10 V (500 Ω max. loop impedance)
0 to 10 VDC:
Resolution: 1 part in 3500 typ.
Accuracy: ±(0.1% of reading + 35 mV)
Min. Load Resistance: 10 KΩ (1 mA max.)
Source: % output power, setpoint, deviation, or process value
(Available for OP1 or OP2, but not both.)
10. MOTORIZED VALVE POSITIONER (Optional):
Two Outputs: Valve open and valve close or Linear DC (optional)
Hardware: Plug-in, replaceable output modules
Three Inputs: Slidewire feedback, signal fail detect (Isolated from main
input)
Slidewire Resistance: 100 Ω to 100 KΩ
Slidewire Exciting Voltage: 0.9 VDC typ.
Slidewire Fail Action: programmable
Control Mode: Position mode (with slidewire) and velocity mode (w/o
slidewire).
Control Deadband: 1% to 25.0% (position mode)
0.1 to 25.0 seconds (velocity mode)
Update Time: 1 to 250 seconds
Motor Time (open, close): 1 to 9999 seconds
Position Limits: Adjustable 0.0 to 100.0% of valve stroke
Valve Fail Time: Off to 9999 seconds
Alarm mode: Dual acting; loss of slidewire feedback signal and valve fail
detection
11. SECOND ANALOG INPUT:
Range: 0 to 20 mA (Isolated from main input)
Overload: 100 mA
MIN
(steady state)
Input Resistance: 10 Ω typ.
Voltage Drop (@ 20 mA): 0.2 V typ.
Accuracy: 0.15% of reading ±10 µA ±1 LSD
Scale Range: -999 to 9999
12. SERIAL COMMUNICATION:
Type: RS485 Multi-point, Balanced Interface
Communication Format:
Baud Rate: Programmable from 300 to 9600
Parity: Programmable for odd, even, or no parity
Frame: 1 start bit, 7 data bits, 1 or no parity bit, 1 stop bit
Unit Address: Programmable from 0 to 99, max. of 32 units per line
Transmit Delay: 100 msec min., 200 msec max.
RS485 Common: Isolated from signal input common
Auto Print Time: Off to 9999 seconds between print-outs
13. USER INPUT (Optional): Internally pulled up to +5 VDC.
V
IN
= 5.25 VDC
MAX
, V
IL
= 0.85 V
MAX
; V
IH
= 3.0 V
MIN
,
Available on all second input (MVP & ANA) models, and on models with
RS485.
Response Time: 100 msec max.
Functions: Program Lock
Integral Action Lock
Auto/Manual Mode Select
Setpoint Ramp Select
Reset Alarms
Print Request
Local/Remote Setpoint Select
14. ALARMS (Optional):
Hardware: Plug-in, replaceable output module
Modes: Absolute high acting
Absolute low acting
Deviation high acting
Deviation low acting
Inside band acting
Outside band acting
Valve fail
Second Analog Input monitoring
Reset Action: Programmable; automatic or latched
Standby Mode: Programmable; enable or disable
Hysteresis: Programmable
Signal Overdrive Action: Upscale
Annunciator: LED backlight for “AL1”, “AL2”, (Alarm #2 not available
with secondary output or motorized valve position option.)
15. ENVIRONMENTAL CONDITIONS:
Operating Temperature Range: 0 to 50°C
Storage Temperature Range: -40 to 80°C
Vibration to IEC 68-2-6: Operational 5-150 Hz, 1 g
Shock to IEC 68-2-27: Operational 5 g
Span Drift (maximum): 100 ppm/°C, main input; 150 ppm/°C, second input
Zero Drift (maximum):
4 to 20 mA DC Range: 0.5 µA/°C
0 to 10 VDC Range: 0.2 mV/°C
Second Input: 2 µA/°C
Relative Humidity: Less than 85% RH (non-condensing)
Altitude: Up to 2000 meters
16. ISOLATION BREAKDOWN RATINGS:
All inputs and outputs with respect to AC line: 2300 V
MIN
Analog Outputs, Second Analog Input or Slidewire Input with respect to
main input: 500 V
MIN
17. CERTIFICATIONS AND COMPLIANCES:
CE Approved
EN 61326-1 Immunity to Industrial Locations
Emission CISPR 11 Class A
EN 61010-1
RoHS Compliant
UL Recognized Component: File #E156876
UL Listed: File #E137808
Type 2 Enclosure rating (Face only) for PCU0
Type 4X/IP65 Enclosure rating (Face only) for PCU1
Refer to EMC Installation Guidelines section of the manual for additional
information.
18. CONNECTION: Jaw-type terminal block
Wire Range: 12-30 AWG copper wire
Torque: 5-7 inch-lbs (56-79 N-cm)
19. CONSTRUCTION:
Front Panel: Flame and scratch resistant tinted plastic
Case: High impact black plastic. (Mounting collar included)
Type 4X/IP65 model only: Sealed bezel utilizing two captive mounting
screws (panel gasket included) This unit is rated for Type 4X/IP65 indoor
use. Installation Category II, Pollution Degree 2
20. WEIGHT: 1.3 lbs (0.6 kgs)
BASIC OPERATION
The PCU controls a process by measuring the input signal and then calculating
a control output power value by use of a modified PID control algorithm. The unit
controls the system with the new output power value to keep the process at
setpoint. The PID control algorithm incorporates features that provide for high
control accuracy and low overshoot from process disturbances.
FRONT PANEL FEATURES
In the normal operating mode, the unit displays the scaled process value in the
upper display. One of four other parameters can be viewed in the lower display:
- Setpoint
- % Power Output
- Deviation
- Second Input Process Value
The parameters can be scrolled through by pressing the DSP button. If
enabled, the control setpoint or power output (manual mode only) can be
directly modified in this mode.
In the normal operating mode, parameters are selected by use of the PAR
button and modified by use of the UP and DOWN buttons. Parameters are then
entered by the PAR button, which advances the user to the next parameter.
Pressing the DSP button immediately returns the controller to the normal
operating mode when making a parameter change. The controller’s configuration
and parameter settings are stored in an internal E 2 PROM device.