Watlow EZ-ZONE PM Integrated Controller User Manual
Page 63
Watlow EZ-ZONE
®
PM Integrated Controller
•
60
•
Chapter 5 Operations Page
Operations Page
Dis-
play
Parameter name
Description
Range
Default
Modbus
Relative Ad-
dress
CIP
Class
Instance
Attribute
hex (dec)
Profibus
Index
Param-
eter ID
Data
Type
& Read/
Write
[`C;hy]
[ C.hy]
Control Loop (1 to 2)
Cool Hysteresis
Set the control switch-
ing hysteresis for on-off
control. This determines
how far into the “on”
region the process value
needs to move before the
output turns on.
0.001 to 9,999.000°F or
units
0.001 to 5,555.000°C
3.0°F or
units
2.0°C
Instance 1
Map 1 Map 2
1902 2382
Instance 2
Map 1 Map 2
1972
2522
0x97 (151)
1 to 2
0xC (12)
68
8013
float
RWES
[``ti]
[ ti]
Control Loop (1 to 2)
Time Integral
Set the PID integral for
the outputs.
0 to 9,999 seconds per
repeat
180 sec-
onds
per
repeat
Instance 1
Map 1 Map 2
1894 2374
Instance 2
Map 1 Map 2
1964
2444
0x97 (151)
1 to 2
8
69
8006
float
RWES
[``td]
[ td]
Control Loop (1 to 2)
Time Derivative
Set the PID derivative
time for the outputs.
0 to 9,999 seconds
0
seconds
Instance 1
Map 1 Map 2
1896 2376
Instance 2
Map 1 Map 2
1966
2446
0x97 (151)
1 to 2
9
70
8007
float
RWES
[``dB]
[ db]
Control Loop (1 to 2)
Dead Band
Set the offset to the
proportional band. With
a negative value, both
heating and cooling
outputs are active when
the process value is near
the set point. A positive
value keeps heating and
cooling outputs from
fighting each other.
-1,000.0 to 1,000.0°F or
units
-556 to 556°C
0
Instance 1
Map 1 Map 2
1898 2378
Instance 2
Map 1 Map 2
1968
2448
0x97 (151)
1 to 2
0xA (10)
71
8008
float
RWES
[`o;SP]
[ o.SP]
Control Loop (1 to 2)
Open Loop Set Point
Set a fixed level of out-
put power when in man-
ual (open-loop) mode.
-100 to 100% (heat and
cool)
0 to 100% (heat only)
-100 to 0% (cool only)
0.0
Instance 1
Map 1 Map 2
2162 2642
Instance 2
Map 1 Map 2
2242
2722
0x6B (107)
1 to 2
2
51
7002
float
RWES
No
Dis-
play
Control Loop (1 to 2)
Loop Error
Open Loop detect devia-
tion has been exceeded.
[none]
None (61)
[`lp;o]
Open Loop (1274)
[`lp;r]
Reversed Sensor
(1275)
- - - -
Instance 1
Map 1 Map 2
1928
2408
Instance 2
Map 1
Map 2
1998
2478
0x6C (108)
1
0x30 (48)
- - - -
8048
uint
R
No
Dis-
play
Control Loop (1 to 2)
Clear Loop Error
Current state of limit
output.
[`Clr]
Clear (129)
[ignr]
Ignore (204)
- - - -
Instance 1
Map 1 Map 2
1930 2410
Instance 2
Map 1
Map 2
2000
2480
0x6C (108)
1
0x31 (49)
- - - -
8049
uint
W
Note:
Some values will be rounded off to fit in the four-character display. Full values can
be read with other interfaces.
R: Read
W: Write
E: EEPROM
S: User
Set