15
Terminal
Description about functions and purposes
When not in use
VF2
VF2: Gradient (proportional) signal input
Short-circuited
with VE3
VH2
VH2: Manual (upper limit) signal input
Open
VL2
VL2: Lower point (lower limit) signal input
Short-circuited
with VE1
VE3
VE3 – VE1: +5 VDC output for a variable resistor
↑
VE1
When a variable resistor (1 kΩ) is connected, the inputs from
these terminals are used for setting. The output level is
determined by a combination of the three inputs. Setting
examples are shown in the following figure.
* Short-
circuiting is not
required when
the settings are
configured via
the panel or
communication.
HL
Two-position control signal input
• Short-circuited: Acts according to the manual (upper limit)
setting.
• Open: Acts according to the lower point (lower limit) setting.
Open
AT
Automatic/manual switching signal input
• Short-circuited: Automatic (control with a temperature
controller or two-position control)
• Open: Manual (control with the manual signal input)
–
Lower point setting
Gradient setting
Ex.1
0%
100%
Ex.2
20%
100%
Ex.3
0%
50%
Ex.4
20%
50%
Summary of Contents for CALPOTE UG Series
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