Omron E5EK User Manual

3.3 Setting Output Specifications
E5EK
3--7
• Factory settings are as follows:
control output 1 = Control output (heat)
control output 2 = Alarm 1
auxiliary output 1 = Alarm 2
auxiliary output 2 = Alarm 3.
• Output assignments are set in the “control output 1 assignment”,
“control output 2 assignment”, “aux output 1 assignment” and “aux
output 2 assignment” parameters (setup mode).
• Position-proportional type controllers support six output functions.
These are assigned to auxiliary outputs 1 and 2.
• Restrictions on assignment destinations are placed on some of the
outputs. The following table shows where outputs may be assigned to.
Assignment
D
e
s
t
i
n
a
t
i
o
n
Control Output Auxiliary Output
D
es
t
i
na
t
i
on
Output Function
1 2 1 2
Alarm 1 F F
Alarm 2 F F
Alarm 3 F F
Error 1 : Input error F F
Error 2 : A/D converter error F F
Error 3 : RSP input error F F
• “Direct operation” (or normal operation) refers to control where the
manipulated variable is increased according to the increase in the
process value. Alternatively, “reverse operation” refers to control
where the manipulated variable is decreased according to the decrease
in the process value.
For example, when the process value (PV), is lower than the set point
(SP), in a heating control system, the manipulated variable increases
by the difference between the PV and SP values.
According ly, this becom e s “re v e rs e opera t ion” in a hea t ing control sys-
te m . Alte rnatively, this become s “d irect operat ion” in a cooling control
system.
• Direct/reverse operation is set in the [
]“direct/reverse opera-
tion” parameter (setup mode).
• When the output unit is pulse output such as relay output, set the
pulse output cycle (control period). Though a shorter pulse period
provides better control performance, the control period should be set
taki ng the life expectancy of the output unit into consideration when
theoutputunitisrelay.
• The control period is set in the “control period (heat)” parameter
(level 1 mode). Factory setting is “20:20 seconds.”
• The “control period (cool)” output function is not allocated. So, the
“control period (cool)” parameter cannot be set.
F Position-propor -
tional type
JDirect/reverse
operation
JControl period

Omron E5EK Specifications

General

Brand	Omron
Model	E5EK
Category	Controller
Language	English