User`s manual

535 User's Manual Appendix 5 A-13
Specifications
APPENDIX 5
SPECIFICATIONS
ACCURACY TYPICAL MAXIMUM
LINEAR (Voltage) ± 0.025% of full scale ± 0.100% of full scale
(Current) ± 0.050% of full scale ± 0.150% of full scale
RTD 1.0° ± 0.050% of span ± 0.150% of span
0.1° ± 0.095% of span ± 0.225% of span
THERMOCOUPLE
J, K, N, E (> 0°C) ± 0.060% of span ± 0.150% of span
J, K, N, E (< 0°C) ± 0.150% of span ± 0.375% of span
T (> 0°C) ± 0.100% of span ± 0.250% of span
T (< 0°C) ± 0.250% of span ± 0.625% of span
R, S (> 500°C) ± 0.150% of span ± 0.375% of span
R, S (< 500°C) ± 0.375% of span ± 0.925% of span
B (> 500°C) ± 0.150% of span ± 0.375% of span
B (< 500°C) ± 0.500% of span ± 1.000% of span
W, W5 & Platinel II ± 0.125% of span ± 0.325% of span
Display accuracy is ± 1 digit. These accuracy specifications are at
reference conditions (25°C) and only apply for NIST ranges.
Detailed accuracy information is available upon request.
CONTROL ALGORITHM
PID, P with manual reset, PI, PD with manual reset, and On-Off
are selectable from the front panel. Duplex outputs each use the
same algorithm, except On-Off may be used with PID. The PID
algorithm used is non-interacting.
TUNING PARAMETERS
Proportional Band: 0.1 to 999% of input range
Integral: 1 to 9999 seconds/repeat
Derivative: 0 to 600 seconds
Manual Reset/Load Line: 0 to 100% output
Cycle Time: 0.3 to 120 seconds
On-Off Deadband: up to 15% of input range (in eng. units)
Up to eight sets of PID values may be stored in memory and
selected automatically, based on setpoint value, process variable
value, or the corresponding local setpoint (SP1–SP8).
SELF TUNING OF PID VALUES
POWERTUNE
®
On-demand “pretune”: This is an open loop
algorithm that may be used on its own to calculate PID variables, or
it can be used to provide preliminary PID values, as well as process
identification information to be used by the adaptive tune.
Three pretune types are available: TYPE 1 for slow thermal
processes; TYPE 2 for fast fluid or pressure applications; and TYPE
3 for level control applications.
Adaptive tune: Our exclusive POWERTUNE
®
adaptive tuning
algorithm automatically adjusts the PID values whenever a process
upset occurs. Preliminary information may be input manually or
automatically calculated by our pretune algorithm.
(Continued on following page)
OVERSHOOT PROTECTION
POWERBACK is Powers’ proprietary, user-invoked, setpoint
overshoot protection algorithm. When invoked, POWERBACK
reduces or eliminates setpoint overshoot at power up or after
setpoint changes. POWERBACK monitors the process variable
to make predictive adjustments to the control parameters, a
feature that helps eliminate overshoot of setpoint.
ISOLATION
Inputs and outputs are grouped into the following blocks:
Block 1: process variable
Block 2 : outputs 1, 2, and 4
Block 3: communications, set of five digital inputs, output 3
(Earth Ground)
Block 4: remote setpoint
Each block is electrically isolated from the other blocks to
withstand a HIPOT potential of 500 Vac for 1 minute or 600 Vac
for 1 second, with the exception of blocks 1 and 4, which are
isolated to withstand a HIPOT potential of 50 volts peak for 1
minute between each other. Inputs and outputs are not isolated
from other inputs and outputs within the same block.
CONTROLLER ARCHITECTURE
The 535 Controller hardware can be configured as follows:
Inputs: One universal process variable input is standard. Available
options include: remote setpoint, slidewire feedback and 5 digital
inputs.
Outputs: Four outputs are available. See Ordering Information.
RS-485 Communications: Available as option with any configura-
tion.
PROCESS VARIABLE INPUTS - 2 PROCESS VARIABLES
AVAILABLE
Universal input type. Any input type may be selected in the field.
Selection of input type (thermocouple, RTD, voltage or current) via
jumper. Selection of particular sensor or range is via front panel.
THERMOCOUPLES RANGE °F RANGE °C
B 104 to 3301 40 to 1816
E –454 to 1832 –270 to 1000
J –346 to 1832 –210 to 1000
K –418 to 2500 –250 to 1371
N –328 to 2372 –200 to 1300
R 32 to 3182 0 to 1750
S 32 to 3182 0 to 1750
T –328 to 752 –200 to 400
W 32 to 4172 0 to 2300
W5 32 to 4172 0 to 2300
Platinel II –148 to 2550 –100 to 1399
Specifications and information subject to change without notice.