38
ENG
“heaterSteam” +0300080EN - rel. 1.0 - 27.04.2016
7.4.8 Enable and set high conductivity alarm (Installer
menu)
The controller allows conductivity thresholds to be set for the activation
of alarms when the limits are exceeded. In other words, excessive
conductivity and consequently high concentration of salts in the
feedwater can be signalled. These alarm thresholds are programmable
using the following control parameters:
Index Description Parameter
Ec15
High
conductivity
Enable the high conductivity alarm and set the alarm
delay.
Defaults:
enabled: YES
alarm delay: 60 seconds
Possible settings:
enabled: YES/NO;
alarm delay: 0-300 seconds
Remarks: once the threshold has been exceeded (if the
alarm is enabled), the controller waits for the “alarm
delay” to elapse before displaying the alarm. If during
this waiting time the conductivity falls back below the
threshold, the alarm is not activated. This helps avoid fal-
se alarms due to variations in the conductivity reading.
7.4.9 Set high conductivity alarm thresholds
(Installer menu)
Two high conductivity thresholds can be set. If exceeding the fi rst (lower)
threshold, a warning is shown without stopping operation, while if
exceeding the higher threshold, an alarm is activated and the unit shuts
down as a precaution.
Index Description Parameter
Ec16
High
conductivity
Set the high conductivity thresholds.
Default:
pre-alert: 1250 μS/cm
alarm: 1500 μS/cm
Hysteresis: 25 μS/cm
Possible settings:
pre-alert: 0-1500 μS/cm
alarm: 0-1500 μS/cm
Hysteresis: 0-100 μS/cm
Remarks: the hysteresis is used to reset the alarm
if the conductivity falls below the threshold by the
value set for the “Hysteresis”.
7.4.10 Remote ON/OFF operating logic (Installer menu)
Screen Ec22 is used to set the operating logic of the remote ON/OFF
contact (normally open or normally closed).
Index Description Parameter
Ec22
Remote ON
input logic
Set the operating logic of the remote on/off input
Default: Remote ON input logic = N.O
Possible settings: Remote ON input logic: N.O., N.C.
7.4.11 Set the PWM period for the SSR (Installer menu)
Menu Ec23 can be used to change the modulation period of the SSR. The
default value of the parameter is 8 seconds. Decreasing this value adjusts
the precision on the relative humidity set point.
Index Description Parameter
Ec23
SSR PWM
period
Set the SSR modulation period
Default: SSR PWM period = 8 seconds
Possible settings: SSR PWM period: 1-199 seconds
7.5 E.Settings – d.Master/Slave
7.5.1 Master/Slave system network settings (Installer
menu)
To increase total production capacity when one single unit is not
suffi cient, the Master/Slave function can be used to connect up to 20
units together in just one system. To set and enable the individual units
in the system, go to the “Network” menu, specifi cally starting from screen
Ed01.
Initial Master/Slave system confi guration:
Index Description Parameter
Ed01
Master/Slave Initial Master/Slave system confi guration
Press “PRG” to confi gure the Master/Slave network
Index Description Parameter
Ed02
Unit 1
Unit 2
-
-
Unit 20
Add unit to the Master/Slave system
To add a unit to the network enter the unit’s IP address.
Scroll between the units using the UP/DOWN buttons
Master/Slave system function confi guration: from screen Ed07 (Master/
Slave production) press “PRG” for the following confi gurations:
Index Description Parameter
Ed02
Unit 1
Unit 2
-
-
Unit 20
Add unit to the Master/Slave system.
To add a unit to the network enter the unit’s IP address.
Scroll between the units using the UP/DOWN buttons
.
Ed03
Maximum
production of
Master/Slave
system
Unit rotation
Set the maximum Master/Slave system production.
Load: this is the maximum capacity eff ectively required
for the Master/Slave system, settable by the user.
Maximum: this is the sum of the maximum capacities of
the units added to the Master/Slave system
Set the unit rotation logic.
Rotation: Grouped (Default), Balanced
Ed04
Advanced
preheating
Rotation time
Enable the advanced preheating function for Master/
Slave systems.
Possible settings: YES/NO
Set the auto-rotation time between units
Settings: 0 to 65535 hours (Default 3 hours).
If auto-rotation time = 0 the function is disabled
Ed05
Offl ine timeout. Set the offl ine time for the units in the Master/Slave
system
Possible settings: 500-10000 ms
Ed06
Disconnect unit
from Master/
Slave system
Disconnect the current unit from the Master/Slave
system
Possible settings: YES/NO
Remarks: this disconnects and removes the current unit
from the Master/Slave system.
Display Master/Slave system production:
Index Description Parameter
Ed07
Master/Slave
production
Display the request (%) and the production (kg/h /
lbs/h) of the Master/Slave system
Display unit status and the percentage of production for each unit in the
Master/Slave system:
Index Description Parameter
Ed08
Display Master/Slave
system
Unit status with corresponding % of production
Ed09
Display info on
individual unit.
Display unit operating hours, current production
and any alarms.
To scroll between the various units use the UP and
DOWN arrows
The display is available for each unit
Maintenance on the units in the Master/Slave system:
Index Description Parameter
Ed10
Unit switched off for
maintenance.
Unit switched off for maintenance
For detailed information on the Master/Slave system, see chapter 8
“Master/Slave system”.
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