Azbil C35 Series User Manual

5-15
Chapter 5. DETAILED DESCRIPTION OF EACH FUNCTION

Control action and Heat/Cool control
The control action (direct/reverse) and Heat/Cool control (enabled/disabled) can
be selected.
However, when the control output type is R1 (motor drive relay output), the Heat/
Cool control is not enabled.
Item (Bank) Display Contents Initial value User level
Control action (direct/
reverse)
(Setup bank)
0: Heat control (Reverse)
1: Cool control (Direct)
0 Basic,
Standard,
High function
Heat/Cool control
(Setup bank)
0: Disabled.
1: Enabled.
0 Basic,
Standard,
High function
• When the control output type is other than R1 (motor drive relay output), and
when the control method is other than the ON/OFF control (
CtrL
≠ 0), [
C26
:
Heat/Cool control] can be displayed and set.
However, in case of the position proportional control model, the Heat/Cool
control is not enabled.
• When the Heat/Cool control is set disabled (
C26
= 0), [
C 14
: Control action] can
be displayed and set.
• When the Heat/Cool control is set disabled (
C26
= 0), both [
C20
: Preset
MANUAL value] and [
C22
: Initial output of PID control] are changed to "0.0".
• When the Heat/Cool control is set enabled (
C26
= 1), both [
C20
: Preset
MANUAL value] and [
C22
: Initial output of PID control] are changed to "50.0".
• The reverse action (heat control) is a control that decreases (or turns OFF) the
manipulated variable (MV) as the PV increases.
The direct action (cool control) is a control that increases (or turns ON) the
manipulated variable (MV) as the PV increases.

Special control outputs
The control output at PV alarm and control output at READY can be set.
Item (Bank) Display Contents Initial value User level
Output operation at PV alarm
(Setup bank)
0: Control calculation is continued.
1: Output at PV alarm is output.
0 High function
Output at PV alarm
(Setup bank)
-10.0 to +110.0% 0.0% High function
Output at READY (Heat)
(Setup bank)
-10.0 to +110.0% 0.0% Standard,
High function
Output at READY (Cool)
(Setup bank)
-10.0 to +110.0% 0.0% Standard,
High function
• When the control method is other than the ON/OFF control (
CtrL
≠ 0) and the
Heat/Cool control is set enabled (
C26
= 1), [
C

18
: Output at READY (cool)] can
be displayed and set.
• The PV alarm status means that
AL0

1
,
AL02
, or
AL03
occurs.

Azbil C35 Series Specifications

General

Brand	Azbil
Model	C35 Series
Category	Controller
Language	English