Instruction manual

3 25 Heater Current Monitoring3 25 Heater Current Monitoring
3 26 Reload Default Values3 26 Reload Default Values
A current transformer, CT94-1, should be installed to measure the heater
current. Select CT for IN2. The input 2 signal conditioner measures the heater
current while the heater is powered and the current value will remain
unchanged during the heater’s off-state. The PV2 will indicate the heater
A current transformer, CT94-1, should be installed to measure the heater
current.
Select CT for IN2. The input 2 signal conditioner measures the heater
current
while the heater is powered and the current value will remain
unchanged
during the heater’s off-state. The PV2 will indicate the heater
NOTES
If the heater to be measured is controlled by output 1, then CYC1 should
select 1 second or longer and O1TY should use RELY, SSRD or SSR . Similarly,
if the heater to be measured is controlled by output 2, then CYC2 should
select 1 second or longer and O2TY should use RELY, SSRD or SSR to
provide an adequate time for A to D converter to measure the signal.
Since CT94-1 can detect a full-wave AC current only, a DC or half-wave AC
If the heater to be measured is controlled by output 1, then CYC1 should
select
1 second or longer and O1TY should use RELY, SSRD or SSR . Similarly,
if
the heater to be measured is controlled by output 2, then CYC2 should
select
1 second or longer and O2TY should use RELY, SSRD or SSR to
provide
an adequate time for A to D converter to measure the signal.
Since
CT94-1 can detect a full-wave AC current only, a DC or half-wave AC
Accessory Installed:
CT94-1
Accessory Installed:
CT94-1
Setup
IN2=CT
O1TY or O2TY=RELY, SSRD or SSR
CYC1 or CYC2 >1 sec
Setup
IN2=CT
O1TY
or O2TY=RELY, SSRD or SSR
CYC1
or CYC2 >1 sec
Limitations
1. Linear output type can't be used.
2. CYC1 (or CYC2) should select 1
second or longer to detect heater
current reliably.
3. Only full-wave AC current can be
detected.
Limitations
1.
Linear output type can't be used.
2.
CYC1 (or CYC2) should select 1
second
or longer to detect heater
current
reliably.
3.
Only full-wave AC current can be
detected.
The default values listed in Table 1.4 are stored in the memory as the controller
leaves the factory. During certain circumstances, it may be helpful to retrieve
these values after the parameter values have been changed. Here is a
The default values listed in Table 1.4 are stored in the memory as the controller
leaves
the factory. During certain circumstances, it may be helpful to retrieve
these
values after the parameter values have been changed. Here is a
Operation
Press several times until . Then press . The upper display will
show use up-down key to select 0 to 1. If C is required select FILE 0
and for F select FILE 1. Then Press for at least 3 seconds. The display will
flash a moment and the default values are reloaded.
Press several times until . Then press . The upper display will
show
use up-down key to select 0 to 1. If C is required select FILE 0
and
for F select FILE 1. Then Press for at least 3 seconds. The display will
flash
a moment and the default values are reloaded.
CAUTION
The procedures mentioned above will change all previous setup data to the
factory settings. Before reloading the default values, record the parameters in
The procedures mentioned above will change all previous setup data to the
factory
settings. Before reloading the default values, record the parameters in
FILE - 0
Celsius Default File
FILE - 0
Celsius
Default File
FILE - 1
Fahrenheit Default File
FILE - 1
Fahrenheit
Default File