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Version No. 1-19 - 15.03.2022

Doc. No. 99572021201SG

13 / 17

Alarm Relay Operation

Both normally closed (NC) and normally open (NO) alarm contacts are provided. Under normal conditions, the
NC contact is closed and the NO contact is open. When an alarm condition is present, the NC contact will open
and the NO contact will close. 

State

Alarm relay           Display

1   System powered OFF

2   System powered ON
     - NO ALARM
     - Door Contact Closed

3   System powered ON
     - Door Contact Open

4   System powered ON
     - ALARM STATE

Notes:

State 2: Additional icons (1,3,4, Reverse, Direct, Test) depending on operation. 
State 3: The display shows “OFF” alternating with the standard display. 
State 4: The display shows “EXX” alternating with the standard display – at the same time, the alarm icon
flashes.

Typical alarm codes:

Error Code Description
E01

Probe B1 fault

E02

Probe B2 fault

E04

High temperature alarm

E05

Low temperature alarm

Important Notes

Whilst programming, if no button is pressed for 10 seconds, the display starts flashing, and after 1 minute
returns to the main display without saving changes.
To increase scrolling speed, press and hold the ▲ or ▼ button for at least 5 seconds.
When pressing “PRG” for 3 seconds, the firmware revision code is displayed for 2 seconds.
When cleaning the controller panel, do not use ethanol, hydrocarbons, ammonia or their by-products. 
Use neutral detergents and water.
In order to protect the unit’s components, minimum relay output on (3 or 7 minutes) and off (4 minutes)
times and minimum time (7 or 11 minutes) between activation of the same relay output are applied.
In case of digital inputs not configured, probes not fitted or configured, or St2 not enabled on the
controller the display shows ‘nO’.

Summary of Contents for SCE-AC6800B460V3

Page 1: ...Safety instructions 4 4 Settings 5 5 Functional principle 6 6 Technical data 7 7 Mounting 8 8 Mounting Principle 9 9 Electrical Connection 10 10 Controller 11 11 Wiring Diagram 14 12 Taking into Opera...

Page 2: ...dissipation of heat from control cabinets and enclosures stationary not moving in order to protect temperature sensitive components in an industrial environment To meet the conditions of use all the...

Page 3: ...units based on the information diagrams or descriptions contained in this manual No liability can be accepted for damage and production caused by Disregarding the instruction manual Operating error I...

Page 4: ...ty regulations One can nd dangerous voltages above 50 V AC or above 100 V DC Behind the control cabinet doors On the power supply in the unit housing The unit has to be operated according to the type...

Page 5: ...r does not come into contact with the ambient air which may well be dirty or polluted Enclosure cooling units can dissipate large quantities of heat from sealed enclosures such as electrical enclosure...

Page 6: ...gerant thus taking it to high pressure and high temperature and pushes it through the condenser where it is cooled by ambient air thus passing from the gas to the liquid state At the liquid state it t...

Page 7: ...em unimpeded Ambient air circuit 655 1200 m h Cabinet air circuit 400 850 m h Mounting Wall mounted Housing Material Mild steel powder coated Dimensions A x B x C D E 1 150 x 395 x 270 mm Weight 108 l...

Page 8: ...rect the air ow Cooling unit enclosure air suction hole must be installed in the highest possible point When installing the unit on a door ensure it can take the weight Before drilling the enclosure e...

Page 9: ...lation Use only the supplied mounting hardware Tighten Screws to 4 5 Nm Ensure the mounting surface does not warp after assembly and reinforce it if necessary The bracket helps with the mounting of th...

Page 10: ...ing to EN60730 1 8 4 A N O 6 4 A N C 2 2 A N O N C 250Vac 100000 cycles UL 873 8A resistive 2FLA 12LRA pilot duty C300 250Vac 30000 cycles These contacts are not suitable for uorescent loads neon ligh...

Page 11: ...gress 2 Alarm relay active 3 Heater relay active 4 Ambient blower relay active Alarm Flashes when alarms are active Heating mode Signals operation of unit in heating mode Cooling mode Signals operatio...

Page 12: ...for high temperature alarm threshold default 55 C 131 F 3 Press SET on the desired parameter to display the current value 4 Use or to reach the desired value 5 Pressing SET temporarily saves the new...

Page 13: ...con ashes Typical alarm codes Error Code Description E01 Probe B1 fault E02 Probe B2 fault E04 High temperature alarm E05 Low temperature alarm Important Notes Whilst programming if no button is press...

Page 14: ...Version No 1 19 15 03 2022 Doc No 99572021201SG 14 17 11 Wiring Diagram 1 L1 2 L2 3 L3 4 PE 5 Alarm NO P1 6 Alarm COM P2 7 Alarm NC P3 8 Door contact T1 9 Door contact T2...

Page 15: ...The unit system must be protected with a MCB Type D or K Upon connection the internal fan will start working If the temperature inside the enclosure is higher than the set value of the controller both...

Page 16: ...e time Cooling unit undersized Enclosure needs a cooling unit with with higher capacity Compressor and external fan work in alternating mode ON OFF Thermal compressor protector triggered Verify if amb...

Page 17: ...annot be returned in the original packing please ensure that A space of at least 30 mm must be maintained at all points between the unit and the external packing The unit must be shipped in the same p...

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