PPI Clavex Pro User manual

User Manual
Clavex Pro
User Manual
Enhanced
Autoclave Sterilization Controller
Clavex Pro

User Manual
Clavex Pro
CONTENTS
1. FRONT PANEL LAYOUT 1
2. BASIC OPERATION 3
3. SET UP MODE : ACCESS & OPERATION 6
4. PAGE 10 : INPUT / OUTPUT CONFIGURATION PARAMETERS 8
5. PAGE 15 : SOAK TIMER PARAMETERS & OPERATION DETAILS 9
6. PAGE 11 : SUPERVISORY PARAMETERS 11
7. PAGE 50 : ADDITIONAL CONTROL PARAMETER 13
8. MECHANICAL INSTALLATION 14
9. ELECTRICAL CONNECTIONS 16

1
User Manual
Clavex Pro
Indicator Function
Heater ON/OFF Status.
HTR
AIR
ALM
WLO
COM
Air Outlet Valve Open / Close status.
Alarm Status. Flashes while Alarm is Active.
Water Level Status. Flashes if water level is LOW.
Serial Communication Status. Flashes when data is being exchanged
with Master Device.
SOK
PRS
Unused.
L1
Glows / Flashes while the lower readout is indicating elapsed soak time.
Glows when the lower readout is indicating autoclave pressure value.
READOUTS
The Upper Readout is a 4 digit, 7-segment bright green LED display and usually displays the Temperature Value in °C. In
Program Mode, the Upper Readout displays parameter values/options.
The Lower Readout is a 4 digit, 7-segment bright green LED display and usually displays either Control Setpoint value or
Saturated Steam Pressure value or the balance Soak Time value, depending on the autoclave cycle state. In Program Mode,
the Lower Readout displays parameter names (prompts).
INDICATORS
There are 8 front panel red LED indicators. These indicator show various statuses. The Table 1.1 below lists each LED
indicator (identified by the front panel legend) and the associated status it indicates.
FRONT PANEL LAYOUT
Section 1
The controller front panel comprises of digital readouts, LED indicators and tactile keys as shown in Figure 1.1 below.
Figure 1.1
Table 1.1
HTR
AIR
SOK
PRS
Clavex Pro
ALM WLO
L1COM
Upper Readout
Lower Readout
ENTER Key
UP Key
DOWN Key
PAGE Key
Serial Comm. Indicator
Alarm Status Indicator
Lower Readout - Pressure
Water Low Indicator
Heater Status Indicator
Air Valve Status Indicator
Lower Readout - Soak Timer

2
User Manual
Clavex Pro
KEYS
The Table 1.2 lists the four front panel keys and the associated function.
Table 1.2
Symbol Key Function
Press to enter or exit set-up mode.
DOWN
UP
ENTER Press to store the set parameter value and to scroll to the next
parameter on the PAGE.
Press to increase the parameter value. Pressing once
increases the value by one count; holding pressed speeds up
the change.
Press to decrease the parameter value. Pressing once
decreases the value by one count; keeping pressed speeds up
the change.
PAGE

3
User Manual
Clavex Pro
BASIC OPERATIONS
POWER-UP
Upon power-up all displays and indicators are lit on for approximately 3 seconds. This is followed by the indication of the
controller model name (CLAv) on the Upper Readout and the firmware version (01.05) on the Lower Readout, for
approximately 1 second.
MAIN DISPLAY MODE
After the Power-up display sequence, the Upper Readout starts showing the Temperature Value in °C and the Lower Readout
indication depends on the autoclave cycle state (described below). This is the MAIN Display Mode that shall be used most
often.
Autoclave Cycle Operation
Control SP
Air Outlet SP
Ambient
Start
Command
Air
Outlet
Close
Soak
Time
Start
Cycle
End
Time
Temp.
Soak Time
Figure 2.1
Step 0 (Idle State - Start Command Awaited)
The Lower Readout shows the message (Start). The front panel indicators SOK and PRS are off. The heater is kept OFF and
the air outlet is kept ON. Use either front panel ‘ENTER’ Key or back panel Remote Key to issue ‘Start’ command to initiate a
new autoclave cycle.
Step 1 (Temperature Raised to Air Outlet SP)
The Lower Readout shows the Control Setpoint value. The front panel indicators SOK and PRS are both on, indicating that the
SP value is being shown on the Lower Readout. Both the heater and air outlet are maintained ON. As soon as the temperature
reaches the Air Outlet SP, the air outlet is turned OFF.
Step 2 (Temperature Raised to Control SP)
The Lower Readout shows the Saturated Steam Pressure value in either Kg/cm² or PSI after the temperature crosses
100.0 C. The front panel indicator SOK is off while PRS is on, indicating that the Pressure value is being shown on the Lower °
Readout. The heater is kept ON until the temperature reaches the Control SP. As soon as the temperature reaches the Control
SP, the soak timer starts counting down. (For the detailed Soak Timer operation, refer Section 5 : Soak Timer Parameters.)
Step 3 (Temperature Maintained at Control SP)
The Lower Readout shows the balance Soak Time in Minutes:Seconds format. The front panel indicator PRS is off. The
indicator SOK flashes if the timer is counting down and glows steadily if the timer is in hold state. The heater is appropriately
switched ON and OFF to maintain the temperature at Control SP while the Soak Timer is counting down to 0. During this time
the Saturated Steam Pressure value can be viewed by holding the UP or DOWN key pressed.
Upon completion of Soak Time, the cycle ends and the controller re-enters Step 0 (Idle State).
Section 2
3

4
User Manual
Clavex Pro
Notes
1) The running cycle is aborted if Low water level is detected. Also, a new start command is not accepted until the
water level error is removed. While the level is low, the Lower Readout flashes the message (Low Level).
2) After start of the Soak timer; if for any reason, the temperature falls below the Air Outlet SP or rises above the
Control SP by more than the ‘Fail-safe Deviation’, the Autoclave cycle is aborted.
PV above Max. Range
PV below Min. Range
Message Error Type Cause
Sensor Open / broken
Sensor Open
Under-range
Over-range
Table 2.1
PV Error Indications
The PV Error type is flashed on the Upper Readout. Refer Table 2.1.
ALARM FUNCTIONS
The Output - 3 Relay/SSR is provided as an Alarm Output that activates under the following conditions.
1. End of Soak Timer
The Alarm activates as soon as the soak timer reaches 0.This alarm indicates the end of the currently running autoclave
cycle.
2. Process High
The Alarm activates if the temperature deviates above the control setpoint by more than the set band value (see ‘Operator
Page and Parameters’).
3. PV Error
The Alarm activates if the measured temperature value crosses the specified Max. or Min. range for the selected sensor
type (that is, under or over range). The Alarm also activates if the sensor input is disconnected.
Under any of the above Alarm conditions, press the front panel ‘ENTER’ key to acknowledge the Alarm (de-activated the relay).
OPERATOR PAGE AND PARAMETERS
The controller provides a separate page that contains parameters that require frequent settings by the operator. The page is
called Operator Page and the parameters are called Operator Parameters. The availability of operator parameters is
controlled at supervisory level and these parameters are not affected by the master lock status.
Accessing Operator Page & Adjusting Parameters
Step through the following sequence to open the operator page and to adjust the operator parameter values.
1. Press and release PAGE key. The Lower Readout shows (PAGE) and Upper Readout shows (0).

5
User Manual
Clavex Pro
CYCLE ABORT PASS CODE
After setting the Cycle Abort Command to ‘Yes’, set this pass code
to an appropriate value for actual cycle abortion.
CYCLE ABORT COMMAND
Set to ‘Yes’ (to be followed by proper pass code entry) to abort a
running autoclave cycle.
FAIL-SAFE DEVIATION SETPOINT
The positive deviation value above the control setpoint for
automatic abortion of the cycle for safety. Upon abortion, the
heater is switched off and the air outlet valve is opened to release
the pressure.
The positive deviation value above the control setpoint for
Process High Alarm.
HIGH ALARM DEVIATION SETPOINT
SOAK TIME
The time duration in ‘Minutes’ for which the autoclave temperature
is maintained at the set control setpoint value.
AIR OUTLET SETPOINT
The setpoint value at and above which the Air Outlet valve is kept
closed to build saturated steam pressure.
The Setpoint value at which the autoclave temperature value is
maintained for the set soak time duration.
CONTROL SETPOINT
(Default : )100.0
Setpoint Low Limit to
Setpoint High Limit
2. Press ENTER key. The Lower Readout shows prompt for the first available operator parameter and the Upper Readout
shows value for the parameter.
3. Use UP/DOWN keys to adjust the value and then press ENTER key to store the set value and scroll to the next parameter.
The controller automatically reverts to MAIN Display Mode upon scrolling through the last operator parameter. Alternatively,
use PAGE key to return to MAIN Display Mode.
The PAGE 0 : Operator Parameters are described in Table 2.2 below.
Setpoint Low Limit to
Setpoint High Limit
(Default : )121.0
Parameter Description Settings
(Default Value)
Table 2.2
1 to 999 Minutes
(Default : 20)
1 to 10 or
0.1 to 10.0
(Default : 5.0)
3 to 20 or
0.3 to 20.0
(Default : 10.0)
0 to 250
(Default : 0)
Yes
No

6
User Manual
Clavex Pro
The various parameters are arranged in different groups, called PAGES, depending upon the functions they represent. Each
group is assigned a unique numeric value, called PAGE NUMBER, for its access.
The parameters are always presented in a fixed format: The Lower Readout displays the parameter prompt (Identification
Name) and the Upper Readout displays the set value. The parameters appear in the same sequence as listed in their
respective sections.
SET-UP MODE
The Set-up Mode allows the user to view and modify the parameter values. Follow the steps below for setting the parameter
values:
1. Press and release PAGE key. The Lower Readout shows PAGE and the Upper Readout shows page number 0. Refer
Figure 3.1.
2. Use UP / DOWN keys to set the desired PAGE NUMBER.
3. Press and release ENTER key. The Lower Readout shows the prompt for the first parameter listed in the set PAGE and
the Upper Readout shows its current value. If the entered PAGE NUMBER is invalid (contains no parameter list or any
associated function), the controller reverts to the MAIN Display Mode.
4. Press and release the ENTER key until the prompt for the required parameter appears on the Lower Readout. (The last
parameter in the list rolls back to the first parameter).
5. Use UP / DOWN keys to adjust the parameter value. (The display flashes if UP key is pressed after reaching the
maximum value or DOWN key is pressed after reaching the minimum value).
6. Press and release the ENTER key. The new value gets stored in the controller’s non-volatile memory and the next
parameter in the list is displayed.
The Figure 3.1 illustrates the example of altering the value for the parameter ‘Input Type’.
Figure 3.1
Use UP/DOWN
keys to change
the value
Press ENTER
key to store the value &
move to next parameter
First Parameter
on Page-10
New Parameter
value
Next Parameter
on Page-10
Main Display
Mode
Default Page Page Number
Press PAGE
key to enter
Set-up Mode
Use UP/DOWN
key to set the
Page Number
Press ENTER
key to open
the Page
SET-UP MODE : ACCESS AND OPERATION
Notes
1. To exit the set-up mode and return to the MAIN Display Mode, press and release PAGE key.
2. If no key is pressed for approximately 30 seconds, the set-up mode times out and reverts to the MAIN Display Mode.
or or
Section 3

7
User Manual
Clavex Pro
MAIN Display
Mode
Default Page Locking Code MAIN Display
Mode
Press PAGE
key to enter
Set-up Mode
Use UP/DOWN
key to set the
‘Locking Code’
Press ENTER key
to Lock & Return to
Main Mode
Locking
1. Press and release PAGE key while the controller is in the MAIN Display Mode. The Lower Readout shows PAGE and the
Upper Readout shows 0.
2. Use UP / DOWN keys to set the Page Number to 123 on the Upper Readout.
3. Press and release ENTER key. The controller returns to the MAIN Display Mode with the Lock enabled.
The Figure 3.2 below illustrates the Locking procedure.
Figure 3.2
UnLocking
Repeat the Locking procedure twice for unlocking.
MASTER LOCKING
The controller facilitates locking all the PAGES (except Operator PAGE) by applying Master Lock Code. Under Locking, the
parameters are available for view only and cannot be adjusted. The Master Lock, however does not lock the operator
parameters . This feature allows protecting the rather less frequently used parameters against any inadvertent changes while
making the frequently used operator parameters still available for any editing.
For enabling / disabling the Lock, step through the following sequence:
or

8
User Manual
Clavex Pro
PAGE 10 : INPUT / OUTPUT CONFIGURATION PARAMETERS
Select the units for saturated steam pressure from Kg/cm and ²
PSI.
UNITS FOR PRESSURE
SETPOINT HIGH LIMIT
Use this limit to prevent accidental over settings of the ‘Control’
and ‘Air Outlet’ setpoints.
SETPOINT LOW LIMIT
Use this limit to prevent accidental under settings of the ‘Control’
and ‘Air Outlet’ setpoints.
HYSTERESIS
Sets a differential (dead) band between the ON and OFF heater
states. Keep it large enough to avoid frequent switching of the
heater without losing the desired control accuracy.
1 to 999°C or
0.1 to 999.9°C
(Default : )2.0
Table 4.1
Parameter Description Settings
(Default Value)
INPUT TYPE
Select Input Type depending upon the resolution required.
Section 4
(Default : )RTD Pt100, 0.1°C
RTD Pt100, 1°C
RTD Pt100, 0.1°C
(Default : 9 °C)0.0
Min. Range for the selected
Input Type to Setpoint High
(Default : °C)150.0
Setpoint Low to Max. Range
for the selected Input Type
(Default : ²)Kg/cm
PSI
Kg/cm²

9
User Manual
Clavex Pro
Abort
The timer operation is suspended until a new start command is
issued.
Start
The timer re-runs the complete soak time.
Continue
The Soak Timer resumes operation for the balance time.
POWER-FAIL RECOVERY METHOD
5 to 250 Sec.
(Default : 10 Sec.)
END-OF-SOAK ALARM TIME
The Output-3 Relay/SSR activates at the end of soak timer to
indicate an end of the running autoclave cycle. This parameter
value sets the time interval for which the Alarm output remains
activated before turning off.
(The user can also use Acknowledgment key to turn off the
output.)
HOLD BAND
Sets the temperature limit(s) with respect to the SP for the soak
timer to pause. This ensures guaranteed soak time elapse.
1 to 5 or
0.1 to 5.0
(Default : 1.0)
(Re)Start
Abort
Continue
(Default : Continue)
(Refer end of this section for detailed Soak Timer Operation)
Table 5.1
TIMER-START BAND
The temperature band around the control setpoint. The soak timer
starts counting down once the Temperature enters this band.
HOLDBACK STRATEGY
None
Temperature based timer pause is not required.
Up
Timer is paused if Temperature is outside holdband and above
Control SP .
Down
Timer is paused if Temperature is outside holdband below Control
SP.
Both
Timer is paused if Temperature is outside holdband both above
and below Control SP.
None
Up
Down
Both
(Default : Down)
SOAK TIME
The time duration in ‘Minutes’ for which the autoclave temperature
is maintained at the set control setpoint value.
1 to 999 Minutes
(Default : 20)
PAGE 15 : SOAK TIMER PARAMETERS
Parameter Description Settings
(Default Value)
1 to 5 or
0.1 to 5.0
(Default : 1.0)
Section 5

10
User Manual
Clavex Pro
SOAK TIMER OPERATION
Figure 5.1
SP
PV
Time
PV
Set Time
Timer count down starts
PV enters start band,
Start Band
Basic Operation
The Soak Timer is essentially a Setpoint Dependent Timer. That is, after issuance of Start Command, the count down starts
only after the Temperature Value reaches within timer ‘Start Band’. The timer start band is a symmetrical band centered
around the Control Setpoint. For example, for a start band of 1.0°C and Control Setpoint value of 121.0°C, the count down
begins once the Temperature Value reaches within 120.0°C (Control Setpoint - Start Band) to122.0°C (Control Setpoint +
Start Band). Note that, once the Temperature Value enters ‘Start Band’, the timer continues to run regardless of whether the
Temperature Value remains within or outside the ‘Start Band’.
Hold Band Operation
The timer is also provided with a ‘Hold Band’ that can be enabled to make sure that the timer counts down only while the
Temperature Value is within the ‘Hold Band’. That is, the timer pauses (stops counting down) whenever the Temperature Value
is outside the ‘Hold Band’. The ‘Hold Band’ is set with respect to the Control Setpoint and can be set above or below or above
and below the Control Setpoint. For example, a 1.0°C Hold Band below the Control Setpoint (say,121.0°C) will force the timer
in pause state whenever the Temperature Value is equal to or less than 120.0°C (Control Setpoint - Hold Band).
Power-fail Recovery Modes
The timer facilitates 3 different power-fail recovery modes, viz., Continue, Re-start and Abort. In Continue mode, the timer
resumes to execute the balance soak time once the Temperature Value is detected within Hold Band. In Re-start mode, the
timer executes the complete set time all over again. In Abort mode, the timer stops execution until a start command is issued.

11
User Manual
Clavex Pro
SLAVE ID
This parameter assigns a unique identification number that the
Master Device can use to address the instrument for data
transactions.
PAGE-11 : SUPERVISORY PARAMETERS
Parameter Description Settings
(Default Value)
Table 6.1
PASS CODE FOR CYCLE ABORT
Set the pass code that the operator must enter if he needs to abort
a running autoclave cycle by setting the Abort command to ‘Yes’
on the operator page.
OPERATOR PARAMETER LOCKING
Setting this parameter to ‘Yes’ enables the supervisor to disallow
the operator to edit the Control Setpoint, Air Outlet Setpoint and
the Soak Time duration on the Operator Page.
DIGITAL FILTER FOR TEMPERATURE VALUE
This value determines the averaging rate of change of Measured
Temperature Value and thus helps removing undesired rapid
changes in the measured . The higher the filter Temperature Value
value the better the averaging but the slower the response to
actual changes.
OFFSET FOR TEMPERATURE VALUE
This parameter adds positive or negative offset to the Measured
Temperature Value for removal of thermal gradient or known
sensor error.
(Default : )22
1 to 250
0.5 to 25.0 Seconds
in steps of 0.5 Seconds
(Default : )1.0
-1999 to 9999 or
-199.9 to 999.9
(Default : )0.0
(Default : )No
Yes
No
1 to 127
(Default : )1
Section 6
BAUD RATE
Communication speed in ‘Bits per Second’. Set the value to match
with the host baud rate.
(Default : 9600)
4800
9600
19200
Parity setting for serial communication protocol
PARITY
(Default : Even)
None
Even
Odd

12
User Manual
Clavex Pro
Parameter Description Settings
(Default Value)
WATER LEVEL SWITCH LOGIC
Open
The Water Level is considered LOW if the switch contacts are
open.
Close
The Water Level is considered LOW if the switch contacts are
close.
Yes
No
(Default : )Yes
COMMUNICATION WRITE ENABLE
No
The Read/Write parameters can only be accessed for reading.
That is, the parameter values cannot be altered through serial
communication.
Yes
The Read/Write parameters can be accessed for both reading and
writing.
PRESSURE VIEW
Set this parameter to ‘Enable’ if it is desired to indicate the
Saturated Steam Pressure (computed based on Autoclave
Temperature) on the lower readout.
If ‘Disable’ the Saturated Steam Pressure indication is
suppressed.
(Default : Enable)
Disable
Enable
(Default : Open)
Open
Close

13
User Manual
Clavex Pro
PAGE 50 : ADDITIONAL CONTROL PARAMETER
Parameter Description Settings
(Default Value)
Table 7.1
SETPOINT OFFSET
This parameter value is algebraically added to the control setpoint
in order to provide positive offset for switching the heater.
Switching off the heater above the setpoint helps reduce the
undershoot that might result in pausing the soak timer.
0.0 to 10.0
(Default : )0.0
Section 7

14
User Manual
Clavex Pro
OUTER DIMENSIONS AND PANEL CUTOUT
The Figure 8.1 shows the controller outer dimensions.
Figure 8.1
MECHANICAL INSTALLATION
Section 8
Figure 8.2
94mm
(3.70in)
7mm (0.276in)
Side View
48mm
(1.89in)
48mm
(1.89in)
Front View
HTR
AIR
ALM
SOK
WLO
Clavex Pro
PRS
COM L1
PANEL CUTOUT
The Figure 8.2 shows the panel cutout requirements for a single controller.
V
H
Parameter Dimensions
mm inches
H
V
45 (-0, +0.5)
45 (-0, +0.5)
1.77 (-0, +0.02)
1.77 (-0, +0.02)

15
User Manual
Clavex Pro
PANEL MOUNTING
Follow the steps below for mounting the controller on panel:
1. Prepare a square cutout to the size shown in Figure 8.2.
2. Remove the Panel Mounting Clamp from the controller Enclosure and insert the rear of the controller housing through the
panel cutout from the front of the mounting panel.
3. Hold the controller gently against the mounting panel such that it positions squarely against the panel wall, see Figure 8.3.
Apply pressure only on the bezel and not on the front label.
4. Insert the mounting clamps on either side of the controller in the slots provided for the purpose. Rotate the screws clock-
wise so that they move forward until they push firmly against the rear face of the mounting panel for secured mounting.
Figure 8.3
Clamps
Bezel
Controller
Mounting Panel with
Square Cutout

16
User Manual
Clavex Pro
ELECTRICAL CONNECTIONS
Figure 9.1
Section 9
1 2 345
21
20
19
18
L N NO C
85~264
VAC
Relay
ALM O/P
HEATER AIR O/P
B+ B-
RS485
PV INPUT
+
-
SSR
Water
Level
10
1112
13
14
1516
17
RTD
6
7
8
9
+
-
SSR
NOCNC
RLY
NO C NC
RLY
Cycle
Start
48X48
WARNING
MISHANDLING / NEGLIGENCE CAN
RESULT IN PERSONAL DEATH OR
SERIOUS INJURY.
1. The user must rigidly observe the Local Electrical Regulations.
2. Do not make any connections to the unused terminals for making a tie-point for other wires (or for any other reasons) as
they may have some internal connections. Failing to observe this may result in permanent damage to the controller.
3. Run power supply cables separated from the low-level signal cables (like RTD, DC Linear (Voltage) signals, etc.). If the
cables are run through conduits, use separate conduits for power supply cable and low-level signal cables.
4. Use appropriate fuses and switches, wherever necessary, for driving the high voltage loads to protect the controller from
any possible damage due to high voltage surges of extended duration or short-circuits on loads.
5. Take care not to over-tighten the terminal screws while making connections.
6. Make sure that the controller supply is switched-off while making/removing any connections or removing the controller
from its enclosure.
CONNECTION DIAGRAM
The Electrical Connection Diagram is shown on the top side of the enclosure. The diagram shows the terminals viewed from
the REAR SIDE with the controller label upright. The connecters provided for wiring are pluggable male-female type. The
female parts are soldered on the controller PCBs while the male parts are with screws and removable. The rear panel
electrical wiring connection diagram is shown in Figure 9.1.

17
User Manual
Clavex Pro
DESCRIPTIONS
PV INPUT : RTD Pt100, 3-Wire (Terminals 17, 16, 15)
Connect single leaded end of RTD bulb to terminal 17 and the double leaded ends to terminal 16 and
15 (interchangeable) as shown in Figure 9.2 (a). Use copper conductor leads of very low resistance
ensuring that all 3 leads are of the same gauge and length. Avoid joints in the cable.
1516
17
Figure 9.2
Water Level : Low Water-Level Detection Digital Input (Terminals : 14, 13)
Potential-free contact closure input terminals are provided as digital inputs for low water level
detection. An user programmable ‘Open’ or ‘Close’ switch position is detected as water level low.
14 13
Figure 9.3
Cycle Start : Remote Cycle Start Digital Input (Terminals : 13, 12)
Potential-free contact closure input terminals are provided as digital inputs for issuance of remote
Cycle Start command. An Open - to - Close transition is taken as Cycle Start Command. If the cycle is in
progress, the switch position is ignored.
13 12
Figure 9.4
HEATER : Relay / SSR Drive for Heater Control (Terminals 18, 19 & 20)
AIR O/P : Relay / SSR Drive for Air Valve (Terminals 7, 8 & 9)
Relay Output
Potential-free Relay changeover contacts NO (Normally Open) and C (Common) rated 10A/240 VAC (resistive load). Refer
Figure 9.5(a).
SSR Output
Connect (+) and (-) terminals of SSR to terminals 18 /9 & 19 / 8, respectively. Use Zero-Crossover, 3 to 30 VDC operated SSR.
Refer Figure 9.5(b).
Figure 9.5(b) : SSR
Figure 9.5(a) : Relay
18
19
9
8
NO
C
NC
9
8
7
18
19
20

18
User Manual
Clavex Pro
Relay ALM O/P : Potential-free Relay Contacts for Alarm Output (Terminals 3, 4)
Potential-free Relay changeover contacts N/O (Normally Open) and C (Common) rated 2A/240 VAC
(resistive load) are provided as Relay output. Use external auxiliary device like contactor with
appropriate contact rating for driving the actual load.
N/O C
34
Figure 9.6
Figure 9.7
RS485 : Serial Communication Port (Terminals 10, 11)
Connect terminal 11 and 10 of the controller to (+) and (-) RS485 terminals of the Master device.
To ensure reliable operation of the Serial Communication Link (without data corruption due to line noise or reflections), use a
pair of twisted wires inside screened cable with the terminating resistor (100 to 150 Ohms) at one end, as shown in Figure 9.7
below.
Terminating Resistor
Screened Cable
Twisted
Wire Pair
(100 to 150 Ohms)
HOST
B-
B+
Master Device
Serial Comm.
Terminals
B-
10
B+
11
Figure 9.8
85~264 VAC : Power Supply (Terminals 1, 2)
The controller is supplied with power connections suited for 85 to 264 VAC line supply. Use well-insulated copper conductor
2
wire of the size not smaller than 0.5mm for power supply connections. Connect Line (Phase) supply line to terminal 1 and the
Neutral (Return) supply line to terminal 2 as shown in Figure 9.8 below. The controller is not provided with fuse and power
switch. If necessary, mount them separately. Use a time lag fuse rated 1A @ 240 VAC.
Line
Neutral
2 Pole
Isolating Switch
Fuse
Power Supply
Terminal
L
1
N
2