Technical Reference
Altering
a
Program
NOTE:
If you have the
opt ional battery
backed clock, the
time
may already
be correct.
You cannot alter data or parameters while the program is running. The 1500
must be in the HALT condition.
If you want to move to a diierent Step # to see what is programmed there and
then modify that step, enter the CHG DATA mode. Then press the FCTN key
until
the “NX” appears in the Function Display. Place the Step # into the Data
Display and press ENTER.
If you want to completely clear a Step of all programmed data to re-program it, go
to the CHG DATA mode and to the appropriate Step # as described above. Then
press the CLEAR key. All programmed data (for this step only) will clear, and you
can now re-program it.
Figure 21 -
Change Parameter
.
(CHG PARA) Mode
Flow Diagram
Programming the Change Parameter Mode (CHG PARA)
Press the mode key to select the Change Parameter (CHG PARA) mode. The TIME
LED will be ON. The FUNCTION and DATA displays will show the real time of day.
Press FCTN to produce the time prompt, HR, in the FUNCTION display. You’ll enter
the real time of day
here, beginning with hours.
See Change Parameter Fig. 16.
Series
1500
CHG PARA
(Change Parameter) Software
Selects MNTR
DATA, CHG DATA
or CHG PARA
Mode.
1
Pb
1
RS
1
RT
1
r b
1
CT
1
db
1
CA
1H
1H
Set
1H
Heat PID 1H
1
H
t Deadband
1
Set Calib
1
Offset
1C
Set
1C
CoolPID
1C
1C
1C
Selects
any
prompt
in a mode.
J
Set Calib
Select values for
the DATA display.
J
GA = 6
GA-2
Channel 2
Dual PID (DIP4
ON)
Places values from
the DATA display
into memory.
2H
2H
Set 2H
Heat PID 2H
Set Deadband {2 2
Set Calib. 2
Offset 2 c
Set
2 c
Cool PID 2C
2 c
2 c
Deadband
2
Set Calib. 2
offset
NOTE:
Only RTD version
1500s
have the TT
prompt (2-channel
temperature
control.
46
WATLOW Series 1500 User’s Manual
Programming, Chapter 4
