RKC INSTRUMENT THV-1 User Manual

IMR01M01-E16
15
Parameter group 1
Name
Parameter
Symbol
Display range or
Setting range
Factory
set value
Details
Reference
page
Contact input
action
J (J)
0: External manual mode
↔ Auto mode
1: Internal manual mode
↔ Auto mode
2: Internal manual mode
(fixed)
0
Select the contact input action.
This selection also affects the display
of the Input signal monitor 1.
Display of the Input signal monitor 1
Contact
input action
Contact
open
Contact
close
0 Input signal
from
controller
External
Manual set
value
1 Input signal
from
controller
Internal
Manual set
value
2 Internal manual set value
(Refer to P. 14)
Refer to
7.1 on
page 17.
Maximum load
current set value
for alarm
1
P (P)
0.0 to 32.0 A
(20 A/30 A) 30.0
Sets the maximum heater current
value.
The value is used for the Heater break
alarm 1 and Heater break alarm 2.
P. 20
0 to 55 A (45 A) 45
0 to 70 A (60 A) 60
0 to 90 A (80 A) 80
0 to 110 A (100 A) 100
Heater break alarm 1
set value setting
1, 2
Q (q)
0 to 100 %
0: Heater break alarm 1
unused
20
Set the Heater break alarm 1 set value.
(Refer to page 18 for Heater break alarm.)
P. 20
Number of alarm
delay times
1
r (r)
0 to 99 times
3
30
Set the Number of alarm delay times.
This setting is common to both
Heater break alarm 1 and Heater
break alarm 2.
P. 20
Heater break
alarm type
1, 4
N (n)
0: Type 1
1: Type 2
0
When the Control method is Phase
control, select an appropriate Heater
break alarm.
P. 20
Alarm output
selection
1
T (T)
0: Heater break alarm 1
1: Heater break alarm 2
(heater deterioration)
2: Logical OR of heater
break alarm 1 and
heater break alarm 2
(heater deterioration)
0
Select the alarm type to be output from
the digital output terminal of the
connector.
P. 20
Heater break alarm 2
set value setting
1, 5
(Heater deterioration)
F (F)
0 to 100 %
0: Heater break alarm 2
unused
15
Set the Heater break alarm 2 set value.
(Refer to page 18 for Heater break alarm).
P. 20
Heater break alarm 2
used/unused
1, 6
K (K)
0: Unused
1: Used
0
Set use/unuse of Heater break alarm 2.
If set to “0: Unused,” no alarm is output.
P. 20
1
These parameters are not displayed when the Heater break alarm, Current limiter, Constant current control and Protection
function for control of primary side of a transformer functions are not provided.
2
When the Control method is Phase control, RKC recommends:
- Set the Heater break set value to approximately 20 % of the Maximum load current value for heater break alarm Type 1.
- Set the Heater break set value to approximately 10 % of the Maximum load current value for heater break alarm Type 2.
When the Control method is Zero-cross control, RKC recommends:
- Set the Heater break alarm set value to approximately 80 % of the reading of current transformer input.
- Set the Heater break alarm set value to a slightly smaller value to prevent a false alarm when power supply variation is
large.
- Set the Heater break alarm set value to a slightly larger value to detect a failure of one heater when more than one heaters
are connected in parallel. But the set value should be less than the maximum reading of current transformer input.
3
The number for the delay times for Heater break alarm 2 is “the set value of Number of alarm delay times” multiplied by 10.
4
The setting is invalid when Zero-cross control is selected.
5
When the Control method is Phase control and heater break alarm Type 1 is selected, RKC recommends:
- Set the value must be equal or less than the heater break alarm 1 set value.
When the Control method is Phase control and heater break alarm Type 2 is selected:
- For the type 2, this item is not available. Set the “0: Heater break alarm 2 unused.”
When the Control method is Zero-cross control, RKC recommends:
- If the alarm needs to be output before a heater break occurs, set the set value of heater break alarm 2 to any value slightly
larger than that of heater break alarm 1.
- If the alarm needs to be output before thyristor break-down occurs, set the set value of heater break alarm 2 to any value
slightly smaller than that of heater break alarm 1.
6
When the heater break alarm type is Type 2:
- For type 2, this item is not used. Set the set value of Heater break alarm 2 to “0: Unused.”

RKC INSTRUMENT THV-1 Specifications

General

Brand	RKC INSTRUMENT
Model	THV-1
Category	Controller
Language	English