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4 Basic Operation
4 - 42
E5@C Digital Temperature Controllers User’s Manual (H174)
z
Parameters
In the above diagram, power is considered to be OFF (normal) if the leakage current is less than
hs1
or
hs2
(heater short detection current) during the Toff interval. The HS alarm will be OFF in this
case. If the leakage current is greater than
hs1
or
hs2
(heater short detection current) during the
Toff interval, the HS alarm will turn ON. Heater short are not detected if the OFF time (Toff) for the
control output for heating is 100 ms or less (35 ms or less if the control period is 0.1 or 0.2 s). Heater
shorts are not detected in the following cases.
• Control will be continued even when there is an HS alarm.
• The rated current may sometimes differ slightly from the actual current flowing to the heater. Use
the Leakage Current 1 Value Monitor and Leakage Current 2 Value Monitor parameters to check
the leakage current during actual operation
Parameter
No. 1 display
Value
No. 2 display
Level
HS Alarm Use
hsu
OFF or ON
(default: ON)
off
,
on
Advanced Function
Setting Level
HS Alarm Latch
hsl
OFF or ON
(default: OFF)
off
,
on
HS Alarm Hysteresis
hsh
0.1 to 50.0 A
(default: 0.1 A)
0.1 to 50.0
HS Alarm 1 or 2 (alarm
current)
hs1
hs2
0.0 to 50.0 A
(default: 50.0 A)
0.0 to 50.0
Adjustment Level
Leakage Current 1 or
2 Monitor
lcr1
lcr2
0.0 to 55.0 A
0.0 to 55.0
Auxiliary Output 1 to 4
Assignment
sub1
to
sub4
HS: HS alarm or
HA: Heater alarm
hs
or
ha
Advanced Function
Setting Level
Set the HS Alarm Use parameter to ON in the Advanced Function Set-
ting Level and set the HS Alarm 1 parameter in the Adjustment Level.
This procedure sets the HS Alarm 1 parameter to 2.5.
Operating Procedure
• Setting the HS Alarm Use Parameter
1
Press the
M
Key several times in the Advanced Function Set-
ting Level to display
hsu
(HS Alarm Use).
Advanced Function Setting
Level
2
Check to see if the set value is
on
(enabled, default).
Control output (heating)
OFF
ON
Ton
Toff
HS Alarm Use
on
hsu
on
hsu
Содержание E5C series
Страница 2: ......
Страница 18: ...Conventions Used in This Manual 16 E5 C Digital Temperature Controllers User s Manual H174 ...
Страница 34: ...1 Introduction 1 10 E5 C Digital Temperature Controllers User s Manual H174 ...
Страница 98: ...3 Part Names and Basic Procedures 3 20 E5 C Digital Temperature Controllers User s Manual H174 ...
Страница 310: ...6 Parameters 6 94 E5 C Digital Temperature Controllers User s Manual H174 ...
Страница 326: ...7 User Calibration 7 16 E5 C Digital Temperature Controllers User s Manual H174 ...
Страница 364: ...A Appendices A 38 E5 C Digital Temperature Controllers User s Manual H174 ...
Страница 365: ...Index 1 E5 C Digital Temperature Controllers User s Manual H174 I Index ...
Страница 370: ...Index 6 E5 C Digital Temperature Controllers User s Manual H174 ...