Calpeda I-MAT User Manual

GB
Page 34 / 136 I-MAT_Ed2 - Operating Instructions
Par.
Description
Suggested value
AP06
Secondary transducer supply
data sheet transducer
AP07
Secondary transducer
measuring unit
4 [°C]
AP08
Secondary transducer
minimum value
data sheet transducer
AP09
Secondary transducer
maximum value
data sheet transducer
AP10
Secondary transducer mode
nMOd
AP18
Night mode enable
On
AP19
Night mode activation
on demand [°C]
AP20
Night mode activation time
on demand [s]
AP21
Night mode disable threshold
on demand [°C]
At this point the symbol will appear on the
frequency converter display.
The frequency converter will work at the minimum
operating frequency when the measured
temperature of the transducer goes below the
temperature set in parameter AP19 for the time
set in parameter AP20. The system will return in
normal mode when the temperature will rise above
the threshold value set in parameter AP21.
10. Secondary functions
ON
10.1. Dry-run protection
The frequency converter is equipped with a dry-run
protection for the pumps. When the pressure of the
system remain for a time higher than the dry-run
time (AP22) lower than the value of the dry-run
pressure (AP24) the protection system will stop the
pump.
It is possible to install up to 2 oat switches for the
dry-run protection (see section 6.8 for electrical
connection).
Programming primary oat switch
The oat switch input is default active, parameter
AP40 is set on 2 (nO), parameter AP41 (restart
time) is set on 3s by default.
Through parameter AP41 is possible to set a restart
time from 1 up to 60 seconds.
Programming secondary oat switch
The oat switch input is default active, parameter
AP42 is set on 2 (nO), parameter AP43 (restart
time) is set on 3s by default.
Through parameter AP43 is possible to set a restart
time from 1 up to 60 seconds.
10.2. Enabling Max/Min curve operation
It’s possible to connect to the frequency converter
an input signal to enable the operation with the
maximum curve or minimum curve. For electrical
connection see section 6.9.
It is possible to enable this operating mode by
changing the parameter AP44 on value 2 “nO” or 3
“nC” (function of the input conguration).
Set parameter AP45 on 1 if it is required which the
frequency converter operates at nominal frequency
(UP03).
Set parameter AP44 on 2 if it is required which
the frequency converter operates at minimum
frequency (SA03).
10.3. Enabling second set-point operation
It is possible to connect to the frequency converter
an input signal in order to use an alternative set-
point. For electrical connection see section 6.10.
It is possible to enable this operating mode by
changing the parameter AP46 on value 2 “nO” or 3
“nC” (function of the input conguration).
If the digital input is enabled the system does not
use the primary set-point (parameter UP06), but it
uses the secondary set-point (parameter UP07).
10.4. Enabling remote On/Off control
It’s possible to connect to the frequency converter
an input signal to start and stop the pump from
a remote unit. For the electrical connection see
section 6.11.
This option is enabled by parameter AP47 on the
value “nO”.
If the digital input is active the frequency converter
is stopped and the display shows “Off”, otherwise
if the digital input is deactivated the frequency
converter will work normally.
10.5. Remote alarm settings
It’s possible to connect to the frequency converter
up to 2 alarm signals. For electrical connection see
section 6.12.
Output signals are default active (parameters AP32
and AP34 set on value “On”).
The parameter AP33 allows to select the activation
condition for the relay connected to terminals A1-
A5.
The values and conditions for relay activation are
here below reported.
Value AP33 Condition
1 Operation
2 Stand-by
3 Off
4 Alarm Er01
5 Alarm Er02
6 Alarm Er03
7 Alarm Er04
8 Alarm Er05

Calpeda I-MAT Specifications

General

Brand	Calpeda
Model	I-MAT
Category	Media Converter
Language	English