Auber SYL-2342 Instruction Manual - Page 2

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AUBER INSTRUMENTS

3.3 Control output connection

The SSR control output of the controller SYL-2352 provides a 12V DC signal

that can control up to 5 SSRs in parallel. The relay output of the controller

SYL-2342 can be used to turn on a contactor or a solenoid valve. It can drive

a small heater directly if the heater draws less than 10 Ampere when

connected to 120V AC power source. For applications needing two control

outputs, such as one for heating and another for cooling, relays AL1 or AL2

can be used for the second output with on/off control mode. Please see

Figure 11 for details.

3.3.1 Connecting the load through SSR (for SYL-2352)

Connect terminal 7 to the positive input and terminal 8 to the negative input of

the SSR. See Figure 8 and 9 for details.

3.3.2 Connecting the load through a contactor (for SYL-2342)

Assuming the controller is powered by 120V AC and the contactor has a 120V

AC coil, jump a wire between terminals 8 and 9. Connect terminal 7 to one

lead of the coil and terminal 10 to the other lead of the coil. Please see Figure

7 for example.

3.3.3. Connecting the heater (or cooler) directly from the internal relay

Assuming the controller and the load (heater or cooler) are powered by the

same voltage. Jump a wire from terminal 9 to 8. Connect terminal 7 to the one

lead of the load and terminal 10 to the other lead of the load. Please see

Figure 6 and 11 for details.

3.4 For first time users without prior experience with PID controllers, the

following notes may prevent you from making common mistakes.

3.4.1 Power to the heater does not flow through terminal 9 and 10 of the

controller. The controller consumes less than 2 watts of power. It only

provides a control signal to the relay. Therefore, wires in the 18 to 26 gauge

range should be used for providing power to terminals 9 and 10. Thicker wires

may be more difficult to install.

3.4.2 The control relay outputs (for SYL-2342), -AL1 and AL2, are "dry" single

pole switches. They do not provide power by themselves. Please see Figure

6, 7 and 11 for how they are wired when providing a 120V output (or when

output voltage is the same as the power source for the controller). If the load

of the relay requires a different voltage than that for the controller, another

power source will be needed. See Figure 10 for examples.

3.4.3 SSR output power does not come from the input of the SSR. The output

of the SSR is a single pole switch between terminals 1 and 2 of the SSR. The

input of the SSR is for control, or triggering the SSR. (Please note we are

talking about the SSR itself, not the SSR control output of the controller).

When switching a North American 240V AC power, the heater will be live

even when the SSR is off. Users should install a double pole mechanical

switch to the power input.

3.4.4. For all controller models listed in this manual, the power is controlled by

regulating the duration of on time for a fixed period of time. It is not controlled

by regulating amplitude of the voltage or current. This is often referred as time

proportional control. e.g. If the cycle rate is set for 100 seconds, a 60% output

means controller will switch on the power for 60 seconds and off for 40

seconds (60/100=60%). Almost all high power control systems use time

proportional control because amplitude proportional control is too expensive

and inefficient.

4. Front Panel and Operation

8888

Figure 2. Front panel

2011.02

① PV display: Indicates the sensor read out, or process value (PV).

② SV display: Indicates the set value (SV) or output value (%).

③ AL1 indicator: It lights up when AL1 relay is on.

④ AL2 indicator: It lights up when AL2 relay is on.

⑤A-M indicator: The light indicates that the controller is in manual mode. For

the controllers with the Ramp/Soak option, this light indicates that the

program is running.

⑥ Output indicator: It is synchronized with control output (terminal 7 and 8),

and the power to the load. When it is on, the heater (or cooler) is

powered.

⑦ SET key: When it is pressed momentarily, the controller will switch the

lower (SV) display between set value and percentage of output. When

pressed and held for two seconds will put the controller into parameter

setting mode.

⑧ Automatic/Manual function key (A/M) /Data shift key

⑨ Decrement key ▼: Decreases numeric value of the setting value.

⑩ Increment key ▲: Increases numeric value of the setting value.

4.1 Display Status

Power on

Display mode 1

8 0 0.0

SET

A 6 0

8 0 0.5

"A 60" means

output value=60%

on Automatic mode

SET

A/M

A L M1

SET

1 0 0 5

ALM1 (high limit alarm)=1005

Figure 3. Display modes

Display mode 1: When the power is turned on, the upper display window

shows the measured value (PV) and the lower window shows the four-digit set

value (SV).

Display mode 2: Press the SET key to change the display status into mode

2. The upper display window shows the measured value (PV) and the lower

windows shows the output value. This picture shows the output percentage is

60% when in Automatic (PID) control mode. If parameter A-M=1 (see table 2),

pressing the A/M key will switch the controller between PID and Manual

control mode with the output unchanged. -This bumpless transfer allows the

controller to be switched between manual and automatic mode without the

output suddenly 'bumping' to a different value.

Display mode 3: Press the SET key for 2 seconds to enter the display mode

3. This mode allows users to change the system parameters.

4.2 Basic Operation

4.2.1 Changing set value (SV)

Press the ▼ or ▲ key once, and then release it. The decimal point on the

lower right corner will start to flash. Press the ▼ or ▲ key to change SV until

the desired value is displayed. If the change of SV is large, press the A/M key

to move the flashing decimal point to the desired digit that needs to be

changed. Then press the ▼ or ▲ key to start changing SV from that digit.

The decimal point will stop flashing after no key is pressed for 3 seconds. The

changed SV will be automatically registered without pressing the SET key.

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Display mode 2

8 0 0.0

A/M

M 6 0

"M 60" means

output value=60%

on manual mode

Display mode 3

Next parameter

P2/8