Ariens Path-Pro 136E User Manual Page 46
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The heating cycle time usually expressed in seconds for a
controller
to
complete
one ON/
OFF cycle. Time between successive turn ons. This parameter will not appear if: OUT
=
CL, or PB H
=
0 or if your Series 920 has a
4-2OmA
output and OUT
=
HT
or
HT/CL.
Range: 1 to 60 seconds
Default:
5
A thermal control band for heating, that defines where the rate
(derivative)
function begins.
This band is in multiples of the heat
proportional
band. This parameter
will
not appear if
OUT=CL, or PB H=0.
Range: 0 to 7 times PB H
Default: 0
The area where no heating or cooling takes
place
in a heat/cool proportional control. Not
displayed if OUT = HT or CL.
Range: -20 to
2O°F,
C or Units
Default: 0
A temperature band expressed in degrees
within
which a
temperature
controller proportion-
ing function is active for cooling. This parameter will not appear if OUT
=
HT.
Range: 0 to
900°F/0
to
500°C
Default:
45°F/25°C
Reset (integral) cooling control action that automatically eliminates offset, or “droop”,
between set point and actual process temperature in a proportional
control.
Expressed in
repeats per minute. This parameter will not appear if OUT
=
HT,
of
PB
C
=
0.
Range: 0.00 to 5.00 repeats/minute
Default
0.00
The rate
(derivative)
cooling function of the
Series
920. The rate is
determined
by how fast
the
error
being corrected is increasing.
Expressed in minutes. This parameter will not
appear if OUT=HT, or PB C=O.
Range: 0.00 to 5.00 minutes
Defauk
0.00
The cooling cycle time
expressed in
seconds for a controller to
complete
one ON/OFF
cycle. Time between successive turn ons. This parameter will not appear if: OUT
=
HT.
or
PB C
=
0. Your
Series
920 has a
4-20mA
output and OUT
=
CL or
CL/HT.
Range: 1 to 60 seconds
Default: 5
A thermal control band for cooling that defines where the rate
(derivative)
function begins.
Use the same as RB H. This band is in
multipIes
of the cool proportional band. This
parameter will not appear if OUT= CL, or PB C
=
0.
Range: 0 to 7 times PB C
Default: 0
From RETURN, you can go back to the SYSTEM prompt by pressing
the
ENTER key, or
return to
PID
by pressing the MODE key.
In the SETUP menu, ACCESS (3) must be selected
to enter
the MANUAL parameters.
Here you can manually adjust percent power.
When ACCESS (3) is selected under the SETUP mode of the Series 920, the MANUAL
parameters appear. The outputs revert to manual percent power control at the percent
of
power that they happen to be currently at.
Allows the operator to manually adjust the percent power output. The default value dis-
played and controlling at, is the value the
PID
calculated when the MANUAL parameter
menu was entered. -100 to 100 represents full
cool
to full heat,
respectively
This parame-
ter will take priority over the LOPWR and
HIPWR
parameters.
Range: -100 to 100
Default:
%
of power output when MANUAL is entered
46 WATLOW
Series 920
User’s Manual
How
To
Program
the
Series
920, Chapter
6
- Series 920 1
- Safety Information 2
- Your Program 3
- Contents 4
- Figures, Tables and Charts 5
- Chapter 1 6
- Starting out with the 6
- Watlow Series 920: 6
- Packing List 7
- How to Open the 920 8
- How to Set the DIP Switches 8
- User’s Manual 9
- Operating 10
- Chapter 11
- Keyboard Area 13
- Where To Go From Here 13
- A Brief Overview 14
- Enter Real Time of Day 14
- Before Entering Your Program 15
- Programming. File 1 15
- Step 4 must be 16
- Editing Your Program 17
- Adding an AUTOSTART Step Type 17
- Running Your Series 920 19
- Chapter 4 20
- How to Check for Ground Loops 22
- Noise Suppression Devices 22
- Available from Watlow 22
- C.M.Line Filter 23
- Installation Information 24
- Installation Procedure 24
- How to Wire the Series 920 25
- Power Wiring 26
- T.C. Compensation 27
- Load from 30
- Temperature Conrol 32
- How to Tune the Series 920 33
- Series 920 User’s 34
- Chapter 6 36
- How To Program The Series 920 36
- Event Outputs 37
- Guaranteed Soak 37
- The Four 38
- JUMPLOOP 38
- Rules to Follow 39
- SYSTEM Menu 40
- .:.:.:.: 41
- SETUP Menu 42
- Represents the 45
- PROGRAM Menu 49
- StepType 50
- To Program 52
- 920, Chapter 6 52
- Chart I- Master Step Chart 53
- Chapter 7 54
- Alarm Types 55
- The Operating Band 56
- Alarm Limits 57
- Clearing An Alarm Message 58
- An Alarm And The State 58
- The Alarm Relay 58
- Appendix 59
- Series 920 Specifications 59
- 920 User’s Manual 60
- 61
- Type J, K, or T 62
- Reference Compen 62
- Equipment Required 63
- Setup and Calibration 63
- @)(sJ(g; 64
- Glossary 67
- Accepts the sensor input and 68
- Isolation: 70
- ON/OFF control: 71
- WATLOW Series 920 73
- Manual 73
- Thermal System: 74
- Safety Information, 2 76
- Warranty Information 77
- Returning Merchandise 77
- Shipping Claims 77
- Series 920 Error Codes/Alarms 78
- Clearing an Error Code 79
- How to Clear an Alarm Code 79
- Series 920 Quick 80
- Reference 80
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