AUBER INSTRUMENTS
WWW.AUBERINS.COM
2021.05
P6/9
goto
boil
Knob
bast
200
Knob
bout
100
Knob
bt
1
:
00
Knob
btsp
208
Knob
balh
200
Knob
beo
off
Knob
Press
Press
Press
Press
Press
Press
Press
Boil acceleration
set temp.
Boil
acceleration
output power
Boil time set
value
Boil timer
start temp.
Boil alarm
set temp.
Boil ending
options
80
100
End
Figure 8. Flow chart for boiling mode settings
7.
External Relay Settings
7.1 Introductory
This controller contains two normally open (N.O.) relays that can be used for
controlling external devices such as buzzers, contactors, and valves. The relays
are dry switches that can handle a 3 Amps of resistive loads or a 1 Amp of
inductive loads. These relays can be programmed as process (absolute) alarms,
deviation alarms, or act in synchronization with the controller’s timer as well as
the acceleration phase. There are a few advanced features of these relays. The
action of a relay can be synchronized with alarm conditions, can be a single
pulse for a pre-determined time duration, or can be latched action that can only
be turned off by human intervention. The relays can be set either to close the
contacts, or to open the contacts when alarm condition meets. In addition,
Relay 1 (AL1) can be set to act in synchronization with the acceleration heating
phase of the main control output. This feature enables the user to control
external contactors and so to employ extra heating elements during acceleration
phase. The Relay 2 (AL2) can be set to act in synchronization with the timer for
mashing or boiling. User can use this Relay 2 to drive an external indicator or a
valve that need to be turn on when the time is up.
Parameters for configuring relays are divided into two groups. The first group of
parameters is for determining the functions of relays. They are nested under the
system configuration settings (see Table 4). Once they are set for a particular
application, there is no need to change them. The second group of parameters
is for alarm on/off temperatures and alarm durations. These parameters are
nested under alarm configuration settings (see Table 7).
7.2 Relay related parameters in system settings
In the menu for system settings, there are five pairs of parameters for configuring
relays.
Table 4. Alarm Parameters in System Configuration.
System Configuration (Alarm parameters part 1)
Display
Code
Description
Setting
Range
Initial
Setting
Remark
tF
Please refer to Section 6.1
tdIr
Pb
C-F
Rl1
RL1
Relay 1 mode
Pr, De, Acc,
Off
Off
Note 12
Lgc1
Lgc1
Logic mode for relay 1
RL_C, RL_O
RL_C
Note 13
Lat1
LAt1
Latching or pulse action
selection for relay 1
Y, PUL, N
N
Note 14
Sil1
SiL1
Alarm suppression for
relay 1
Y, N
N
Note 15
Rl2
RL2
Relay 2 mode
Pr, De, Time,
Off
Off
Note 12
Lgc2
Lgc2
Logic mode for relay 2
RL_C, RL_O
RL_C
Note 13
Lat2
LAt2
Latching or pulse action
selection for relay 2
Y, PUL, N
N
Note 14
Sil2
SiL2
Alarm suppression for
relay 2
Y, N
N
Note 15
key
Key
Function Key
On, Off
Off
Note 16
Note 12: RL (Relay Mode),
determines which mode a relay should be working
at.
RL1
is for Relay 1 and
RL2
is for Relay 2. Each relay has three modes.
Process Alarm Mode (
Pr
) (also called Absolute Alarm) and Deviation Alarm
Mode (
De
) are available for both Relay 1 and Relay 2. In addition, Acceleration
Mode (
Acc
), which set the relay to synchronize with the acceleration phase of
the main control output for the SSR, is only available to Relay 1. Timer Mode
(
Time
), which set the relay to synchronize with the timer function, is only
available to Relay 2.
When a relay is set as a Process Alarm, it can either be triggered by a process
high alarm, by a process low alarm, or by both.
When a relay is set as a Deviation Alarm, it can be triggered by a deviation high
alarm, by a deviation low alarm, or by both. Deviation alarms are only available
in Mashing Mode. There is no set temperature in Boiling Mode or in Distilling
Mode, and hence no deviation alarms.
When Relay 1 is set to work in Acceleration Mode, the relay action will be
synchronized with the Acceleration Set Temperature. It can be set to pull-in
either when the temperature is in the acceleration zone, or when the temperature
is out of the acceleration zone. For details on how this can be used, please
contact customer support.
When Relay 2 is set to work in Timer Mode, the relay action will be synchronized
with the Mashing/Distilling Timer Start Temperature. It can be set to pull-in either
when timer counting is finished, or when during the timer is counting. For details
on how this can be used, please see note 6 & 10.
