Red Lion P48 - Manual (Page 3)

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16. ISOLATION BREAKDOWN RATINGS:
AC line with respect to all Inputs and outputs: 250 V working (2300 V for
1 minute).
Main input with respect to Analog Outputs and Remote Setpoint Input:
50 V working (2300 V for 1 minute).
All other inputs and outputs with respect to relay contacts: 2000 VAC
Not isolated between Analog Output and Remote Setpoint commons.
17. CERTIFICATIONS AND COMPLIANCES:
SAFETY
UL Recognized Component, File #E156876, UL873, CSA 22.2 No. 24
Recognized to U.S. and Canadian requirements under the Component
Recognition Program of Underwriters Laboratories, Inc.
Type 4X Enclosure rating (Face only), UL50
IEC 61010-1, EN 61010-1: Safety requirements for electrical equipment
for measurement, control, and laboratory use, Part 1.
IP65 Enclosure rating (Face only), IEC 529
ELECTROMAGNETIC COMPATIBILITY
Notes:
1. No loss of performance during EMI disturbance at 10 V/m.
Unit is panel mounted in a metal enclosure (Buckeye SM7013-0 or
equivalent) that provides at least 20 dB shielding effectiveness. Metal
panel is connected to earth ground.
Power Line and I/O cables routed in metal conduit connected to earth
ground.
2. Self-recoverable loss of performance during EMI disturbance at 10 Vrms:
Analog output may deviate during EMI disturbance.
For operation without loss of performance:
Install power line filter, RLC#LFIL0000 or equivalent.
OR
Install 2 ferrite cores, RLC#FCOR0000 or equivalent, to AC lines at
unit for frequencies above 5 MHz.
I/O cables routed in metal conduit connected to earth ground.
Refer to the EMC Installation Guidelines section of the manual for additional
information.
18. CONNECTION: Wire clamping screw terminals
19. CONSTRUCTION: Black plastic alloy case and collar style panel latch.
Panel latch can be installed for vertical or horizontal instrument stacking.
One piece tinted plastic bezel. Bezel assembly with circuit boards can be
removed from the case to change the output board without removing the case
from the panel or disconnecting wiring. Unit meets NEMA 4X/IP65
requirements for indoor use, when properly installed. Installation Category
II, Pollution Degree 2.
20. WEIGHT: 0.38 lbs (0.17 kgs)
BASIC OPERATION
The P48 controls a process by receiving a linear DC signal representing the
process value, 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 which provide for high control accuracy and low
overshoot from process disturbances.
FRONT PANEL FEATURES
In the normal operating mode, the unit displays the process value in the upper
display. One of the following parameters can be viewed in the lower display:
- Setpoint
- % Power Output
- Process Deviation
- Blank Display
The user scrolls through these parameters by pressing the D 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 P button
and modified by use of the UP and DOWN buttons. Parameters are then entered
by the P button, which advances the user to the next parameter. Pressing the D
button immediately returns the controller to the normal operating mode without
changing the currently selected parameter.
HARDWARE FEATURES
A fast 100 msec input sampling rate provides quick controller response to a
process disturbance, thus providing excellent process control. Measurement
accuracy of 0.1% or better, provides close process control conforming to the
desired control setpoint value.
Low-drift, highly stable circuitry ensures years of reliable and accurate
process control. The recommended two year re-calibration interval is easily
accomplished via the programming menu.
REMOTE SETPOINT INPUT
The remote setpoint input facilitates the use of a remote signal to drive the
controller’s setpoint. The remote signal can be scaled independent to that of the
controller’s range. The controller’s response to local/remote setpoint transfers
can be programmed. Also, the remote signal is filtered by use of an adaptive
filter. With this filter, relatively large filtering time constants can be used
without suffering from long settling times. The time constant and filter disable
band are programmable. Additionally, the remote signal can also be velocity
limited (or ramped) to slow the controller’s response to changes in setpoint. This
results in a steady control response with no overshoot.
LINEAR DC ANALOG OUTPUTS
The Main Linear DC output has independent scaling, programmable output
update time and filter (damping) time. These parameters permit flexibility in
process configuration. The output can be set for 0 to 10 V, 0 to 20 mA or 4 to
20 mA ranges and can be configured for control or for re-transmission of input
or setpoint values.
A Second Linear DC output is dedicated for the re-transmission of the
process input signal. The output can be scaled and converted independent of the
input signal and Main Linear DC output. This output is isolated from the input.
SETPOINT FEATURES
The controller setpoint can be protected from out of range values by
programming the setpoint range limit values. Additionally, safeguards from
inadvertent data entry can be programmed.
A second setpoint can be selected by the user input and/or through the front
panel.
The setpoint ramp feature can be used to control the setpoint value at start-up
or any time a setpoint change is made, at a user programmable rate. This feature
reduces shock to the process and helps to minimize overshoot.
INPUT FEATURES
A programmable input filter can be used to stabilize readings from a process
with varying or oscillating process characteristics, helping to provide better
control.
The programmable user input can be used to control a variety of functions,
such as auto/manual transfer of the controller, reset alarm output(s), etc.
OUTPUT FEATURES
Programmable output power limits provide protection for processes where
excessive power can cause damage. Programmable output cycle time, output
hysteresis, and dampening can reduce output activity without degrading control
accuracy. The main outputs can operate in PID, ON/OFF, or manual control
modes.
CONTROL AND ALARM OUTPUTS
In addition to the Linear DC output, there are up to three relay outputs
available. Relay outputs can switch user applied AC or DC voltages for control
or alarm purposes.
Power mains class A
Enclosure class A EN 55011 RF interference
Level 3; 10 V/m ENV 50204 Simulation of cordless telephones
Level 4; 30 A/m
150 KHz - 80 MHz
EN 61000-4-8 Power frequency magnetic fields
Level 3; 10 V/rms 2 EN 61000-4-6 RF conducted interference
Level 3; 2 Kv power
Level 4; 2 Kv I/O EN 61000-4-4 Fast transients (burst)
80 MHz - 1 GHz
Level 3; 10 V/m 1 EN 61000-4-3 Electromagnetic RF fields
Level 3; 8 Kv air
Level 2; 4 Kv contact EN 61000-4-2 Electrostatic discharge
Emissions to EN 50081-2
Immunity to EN 50082-2
200 Hz, 50% duty cycle
900 MHz ± 5 MHz