Super Systems 3 Series - Manual (Page 23)

Series 3 Operations Manual
23
Mnemonic Scrolling Display and description Range
DWEL.1 FEATURE UNAVAILABLE OFF, 0:01 to 99:59 hh:mm or
mm:ss as set by TM.RES
The above three parameters are repeated for the next three program segments, i.e. TSP.2 (3 & 4), RMP.2 (3 & 4), DWEL.2 (3 & 4)
This section applies to Alarms only If an alarm is not configured the parameters do not appear
A1.--- - to A4.-
-- ALARM 1 (2, 3 or 4) SETPOINT sets the threshold value at which an alarm occurs.
Up to four alarms are available and are only shown if configured.
The last three characters in the mnemonic specify the alarm type: SP.HI to SP.LO
L o Full Scale Low H i Full Scale High
d H i Deviation High d L o Deviation Low B nd Deviation Band
r r c Rising rate of
change F r c Falling rate of
change 1 to 9999 units/minute
This section applies to control the parameters. A further description of theses parameters is given in section 11
A.TUNE AUTOTUNE automatically sets the control parameters to match the process
characteristics. Off
On
Disable
Enable
PB PROPORTIONAL BAND sets an output which is proportional to the size of the error
signal. Units may be % or display units. 1 to 9999 display units
Default 20
TI INTEGRAL TIME removes steady state control offsets by ramping the output up or
down in proportion to the amplitude and duration of the error signal. Off to 9999 seconds
Default 360
TD DERIVATIVE TIME determines how strongly the controller will react to the rate of
change in the process value. It is used to prevent overshoot and undershoot and to
restore the PV rapidly if there is a sudden change in demand. Off to 9999 seconds
Default 60 for PID control
Default 0 for VP control
MR MANUAL RESET applies to a PD only controller i.e. the integral term is turned off.
Set this to a value of power output (from +100% heat, to -100% cool which removes
any steady state error between SP and PV. -100 to 100%
Default 0
R2G RELATIVE COOL GAIN adjusts the cooling proportional band relative to the heating
proportional band. Particularly necessary if the rate of heating and rate of cooling are
very different. (Heat/Cool only) 0.1 to 10.0
Default 1.0
HYST.H HEATING HYSTERESIS Sets the difference in temperature units between heating
turning off and turning on when ON’OFF control is used. Only appears if channel
1(heating) control action is On/Off 0.1 to 200.0 display units
0.2 Default 1.0
HYST.C COOLING HYSTERESIS Sets the difference in temperature units between cooling
turning off and turning on when ON/OFF control is used. Only appears if channel 2
(cooling) control action is On/Off 0.1 to 200.0 display units
Default 1.0
D.BAND CHANNEL 2 DEADBAND adjusts a zone between heating and cooling outputs when
neither output is on. Off = no deadband. 100 = heating and cooling off.
Only appears if On/Off control configured. OFF or 0.1 to 100.0% of the
cooling proportional band
OP.HI OUTPUT HIGH limits the maximum heating power applied to the process or a
minimum cooling output. +100% to OP.LO
1. (2, 3 or 4)
PLS. OUTPUT 1 (2, 3 or 4) MINIMUM PULSE TIME Sets the minimum on and off time for
the control output.
!
Ensure this parameter is set to a value that is suitable for the output
switching device in use. For example, if a logic output is used to switch a small
relay, set the value to 5.0 seconds or greater to prevent damage to the device due
to rapid switching.
Relay outputs 0.1 to 150.0 seconds
– default 5.0.
Logic outputs Auto to 150.0 -
Default
Auto = 55ms
This section applies to current transformer input only. The CT option is not available on the Series 3.
LD.AMP LOAD CURRENT is the measured load current when the power demand is on CT Range
LK.AMP LEAK CURRENT is the measured leakage current when the power demand is off. CT Range
LD.ALM LOAD CURRENT THRESHOLD Sets a low alarm on the load current measured by
the CT. Used to detect partial load failure. CT Range
LK.ALM LEAK CURRENT THRESHOLD sets a high alarm on the leakage current measured by
the CT. CT Range
HC.ALM OVERCURRENT THRESHOLD Sets a high alarm on the load current measured by
the CT CT Range
ADDR ADDRESS - communications address of the controller. 1 to 254 1 to 254
HOME HOME DISPLAY Defines the parameter which appears in the lower section of the STD Standard