Ariens Path-Pro 136E User Manual Page 26
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0
1
WARNING:
To
avoid potential
electric shock, use
National Electric
Code safety prac-
tices when wiring
and connecting this
unit to a power
source and to
electrical sensors or
peripheral devices.
0
2 WARNING:
To avoid electric
shock, connect the
chassis ground
terminal to “Earth
Ground.”
Figure
15
-
Series 920 Power
Wiring.
n
?
0
CAUTION:
Remove the short
green ground
jumper on the back
of the 920
(T-21)
if
your control is
mounted in a metal
panel connected to
safety (chassis)
ground. Removing
the jumper will
prevent ground
loops. OR
Leave the short
green ground
jumper in place if
the Series 920 case
is not connected to
safety (chassis)
ground.
Power Wiring
01
@2
1
NOTE:
For
230VAC,
jumper
18
to
19
Chassis
GND
Green
GND
k
Wire
Ll
0
3 WARNING:
Ground
0;
A
J3
NOTE:
For
115VAC,
jumper 17
to
19
and jumper l8 to 20
17
18
19
20
Ll
Ground
Disconnecting the green ground jumper
wire
could allow A.C. voltages to be
present on the metal case.
Connect the AC power lines and the jumper wires to the power supply terminal
strip of the Series 920. Study the strip connections carefully before beginning.
Be sure to use these jumpers on the power supply
terminal
strip.
For
230VAC,
jumper 18 to 19. For
115VAC,
jumper 17 to 19 and jumper 18 to 20.
All wiring and fusing should conform to the National Electric Code and to any
locally applicable codes also.
When you apply power without sensor inputs on the Signal Conditioner termi-
nal strip, the Series 920 alternately flashes from SYSTEM to
ERl
00XX. This
is an error code indicating an open sensor. These are
normal
displays for a
unit without sensors.
Before applying power, open the Series 920 and set DIP Switch
#1
“ON” for a
Cold Start.
Replace the control chassis in the enclosure and apply power to
the unit. (This clears all previously entered information from the 920; it is a
“clean” or “cold” start.)
Now remove power again, open the unit, and set the Switch #1 to OFF, (This
will make the next
start
a “warm” one, retaining all subsequently entered
information in the processor’s memory.) Close the 920.
26
WATLOW Series 920 User's Manual
How to Install and Wire, Chapter 4
- 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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