Omron E5AR - MANUAL 2 User Manual

Section 5 Functions and Operations
5-8
Functions and
Operations
5.2 Control functions
■ SP ramp
The SP ramp function limits the amount of change of the SP to a set
rate. When this function is enabled and the amount of change exceeds
the set rate, a space that limits the SP is created as shown in the
diagram below
During SP ramp, control takes place not by changing the SP, but
rather by using a value that is limited by the set rate of change (this is
called the ramp SP).
On the E5AR/ER, an "SP ramp rise value" and an "SP ramp fall value"
can be set separately.
The rate of change during SP ramp is set in "SP ramp rise value", "SP
ramp fall value", and "SP ramp time unit".
The initial settings for "SP ramp rise value" and "SP ramp fall value"
are "0", which means that SP ramp is disabled.
"EU/sec", "EU/min" or "EU/hour" can be selected for "SP ramp time
unit". The initial setting is "EU/min".
The ramp SP can be viewed using "Set point during SP ramp".
● Operation at
startup (SP ramp)
When the power is turned on (including operation startup), the PV is
regarded as the pre-change SP.
SP ramp operation at startup depends on the relation between the PV
and SP as follows:
SP ramp time unit
spru
m
l.adj
SP ramp rise value
sprh
0.0
l.adj
SP ramp fall value
sprl
0.0
l.adj
Set point during SP ramp
sp-m
0.0
SP ramp
SP
SP ramp
rise value
SP ramp time units
Time
SP after change
SP before change
Change point
Power on
SP ramp rising
When PV < SP
SP
Time
SP
PV
Power on
SP ramp
Falling
When PV > SP
SP
Time
SP
PV

Omron E5AR - MANUAL 2 Specifications

General

Brand	Omron
Model	E5AR - MANUAL 2
Category	Controller
Language	English