Danfoss Gas Detection User guide

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User Guide

Danfoss Gas Detection

Controller unit and Expansion module

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User Guide | Danfoss Gas Detection - Controller unit and Expansion module

Contents Page

1 Intended use .....................................................................................4

2 Description .......................................................................................4

2.1 Normal Mode ...............................................................................4

2.2 Alarm Mode ................................................................................4

2.3 Special Status Mode.........................................................................4

2.3.1 Fault Mode................................................................................5

2.3.2 Restart Mode (Warm-up Operation)........................................................5

2.3.3 Service Mode .............................................................................5

2.3.4 UPS Functionality .........................................................................5

3 Wiring conﬁguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

4 Operation ........................................................................................7

4.1 Function of the keys and LEDs on the keypad ................................................7

4.2 Setting / changing of parameters and set points .............................................7

4.3 Code Levels.................................................................................8

5 Menu Overview...................................................................................9

5.1 Fault Management........................................................................ 10

5.1.1 Acknowledge a Fault ....................................................................10

5.1.2 Error Memory ........................................................................... 10

5.1.3 System Messages and Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5.2 Status Alarm .............................................................................. 13

5.3 Relay Status............................................................................... 13

5.4 Menu Measuring Values ...................................................................13

5.5 Maintenance Information ................................................................. 14

5.6 Display Parameter......................................................................... 15

5.6.1 Software Version ........................................................................ 15

5.6.2 Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.6.3 Service Phone Number .................................................................. 16

5.6.4 System Time, System Date ............................................................... 16

5.6.5 Error Time Delay......................................................................... 16

5.6.6 X Bus Slave Address ..................................................................... 16

5.7 Parameters................................................................................17

5.7.1 Display Parameter ....................................................................... 18

5.7.2 Menu Relay Parameter................................................................... 19

5.7.2.1 Relay Mode............................................................................ 20

5.7.2.2 Relay Operation Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.7.2.3 Relay Function Static / Flash............................................................ 20

5.7.2.4 Alarm Trigger Quantity................................................................. 20

5.7.2.5 Horn Function (not safe output circuit because resettable) ..............................20

5.7.2.6 External Override of Alarm / Signal Relay via DI ......................................... 21

5.7.2.7 External Override of Alarm / Signal Relay via DI ......................................... 21

5.7.2.8 OR Operation of Fault to Alarm / Signal Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.7.2.9 OR Operation of Maintenance to Alarm / Signal Relay ..................................22

5.7.3 Menu MP Parameters.................................................................... 23

5.7.3.1 Activate – Deactivate MP............................................................... 25

5.7.3.2 Lock or Unlock MP .....................................................................25

5.7.3.3 Selection Gas Type with Unit ...........................................................25

5.7.3.4 Measuring Range Deﬁnition ........................................................... 25

5.7.3.5 Threshold / Hysteresis..................................................................26

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User Guide | Danfoss Gas Detection - Controller unit and Expansion module

Contents Page

5.7.3.6 Delay for Alarm ON and/or OFF for Current Value Evaluation ............................26

5.7.3.7 Average Overlay (VDI 2053 Functionality)............................................... 26

5.7.3.7 Latching Mode Assigned to Alarm ..................................................... 26

5.7.3.8 MP Fault Assigned to Alarm ............................................................26

5.7.3.9 Alarm Assigned to Alarm Relay......................................................... 26

5.7.3.10 MP Signal Assigned to Analog Output................................................. 26

5.7.4 Menu System Parameters................................................................ 27

5.7.4.1 System Information.................................................................... 27

5.7.4.2 Maintenance Interval .................................................................. 27

5.7.4.3 Power On Time ........................................................................ 27

5.7.4.4 Analog Output ........................................................................ 28

5.7.4.5 Relay Multiplication.................................................................... 29

5.7.5 Test Function of the Alarm and Signal Relays ............................................. 30

5.7.6 Test Function of the Analog Outputs ..................................................... 30

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User Guide | Danfoss Gas Detection - Controller unit and Expansion module

1 Intended use

2 Description

The Danfoss gas detection controller unit is controlling one or multiple gas detectors, for monitoring, detection and warning of toxic and ﬂammable gases and vapours in the ambient air. The controller unit meets the requirements according to EN 378 and the guidelines “Safety requirements for ammonia (NH3) refrigeration systems”.

The controller unit is a warning and control unit for the continuous monitoring of diﬀerent toxic or ﬂammable gases and vapours as well as of HFC and HFO refrigerants. The controller unit is suitable for the connection of up to 96 digital sensors via the 2-wire bus. Up to 32 analog inputs for the connection of sensors with 4 to 20 mA signal interface are available in addition. The controller unit can be employed as pure analog controller, as analog/digital or as digital controller. The total number of connected sensors, however, may not exceed 128 sensors.

Up to four programmable alarm thresholds are available for each sensor. For binary transmission of the alarms there are up to 32 relays with potential-free change-over contact and up to 96 signal relays.

The intended sites are all areas being directly connected to the public low voltage supply, e.g. residential, commercial and industrial ranges as well as small enterprises (according to EN 5502). The controller unit may only be used in ambient conditions as speciﬁed in the technical data.

The controller unit must not be used in potentially explosive atmospheres.

Comfortable and easy operation of the controller unit is done via the logical menu structure. A number of integrated parameters enables the realisation of various requirements in the gas measuring technique. Conﬁguration is menu-driven via the keypad. For fast and easy conﬁguration, you can use the PC based conﬁguration software, included in the PC tool.

Prior to commissioning please consider the guidelines for wiring and commissioning of the hardware.

2.1 Normal Mode

2.2 Alarm Mode

2.3 Special Status Mode

In normal mode, the gas concentrations of the active sensors are continuously polled and displayed at the LC display in a scrolling way. In addition, the controller unit continuously monitors itself, its outputs and the communication to all active sensors and modules.

If the gas concentration reaches or exceeds the programmed alarm threshold, the alarm is started, the assigned alarm relay is activated and the alarm LED (light red for alarm 1, dark red for alarm 2 + n) starts to ﬂash. The set alarm can be read from the menu Alarm Status.

When the gas concentration falls below the alarm threshold and the set hysteresis, the alarm is automatically reset. In latching mode, the alarm must be reset manually directly at the alarm triggering device after falling below the threshold.

In the special status mode there are delayed measurements for the operation side, but no alarm evaluation. The special status is indicated on the display and it always activates the fault relay.

The controller unit adopts the special status when:

- faults of one or more active devices occur,

- the operation starts up after return of voltage (power on),

- the service mode is activated by the user,

- the user reads or changes parameters,

- an alarm or signal relay is manually overridden in the alarm status menu or via digital inputs.

This function is obligatory for ﬂammable gases detected by catalytic bead sensors generating a falling signal at too high gas concentrations.

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User Guide | Danfoss Gas Detection - Controller unit and Expansion module

2.3.1 Fault Mode

2.3.2 Restart Mode (Warm-up Operation)

2.3.3 Service Mode

If the controller unit detects an incorrect communication of an active sensor or module, or if an analog signal is outside the admissible range (< 3.0 mA > 21.2 mA), or if there are internal function errors coming from the self-control modules incl. watchdog and voltage control, the assigned fault relay is set and the error LED starts to ﬂash.

Gas detection sensors need a running-in period, until the chemical process of the sensor reaches stable conditions. During this running-in period the sensor signal can lead to an unwanted release of a pseudo alarm.

Depending on the connected sensor types, the longest warm-up time must be entered as poweron time in the controller.

This power-on time is started at the controller unit after switching on the power supply and/or after the return of voltage.

This operation mode includes commissioning, calibration, testing, repair and decommissioning.

The service mode can be enabled for a single sensor, for a group of sensors as well as for the complete system. In active service mode pending alarms for the concerned devices are held, but new alarms are suppressed.

The error is displayed in the menu Error Status in clear text. After removal of the cause, the error message must be acknowledged manually in the menu Error Status.

While this time is running out, the gas controller unit does not display any values and does not activate any alarms; the controller system is not yet ready for use.

The power-on status occurs on the ﬁrst line of the starting menu.

2.3.4 UPS Functionality

The supply voltage is monitored in all modes. When reaching the battery voltage in the power pack, the UPS function of the controller unit is enabled and the connected battery is charged.

If the power fails, the battery voltage drops down and generates the power failure message.

At empty battery voltage, the battery is separated from the circuit (function of deep discharge protection).

When the power is restored, there will be an automatic return to the charging mode.

No settings and therefore no parameters are required for the UPS functionality.

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User Guide | Danfoss Gas Detection - Controller unit and Expansion module

Rela y

Service

AP 05 AP 06 AP 07 AP 08

Rela y

148H138_01-2018

Rela y

AP 01 AP 02 AP 03 AP 04

Rela y

148H144_02-2018

Rela y

3 Wiring conﬁguration

Fault

AR 01

AR 02

AR 03

AR 04

VDC

0 VDC

Power/

X10

Main Bus

tool

X_Bus

3152

X_Bus

0 VDC

Main Bus_A

X2X1 X2

Relay

Main Bus_B

< 24 VDC

1 2 3 4

X11

Main Bus_B

X2X1 X2

511

612

13410

D1 D2 D3 D4

D RF

Digital output

Controller unit

Power Analog

24 VDC

0 VDC

24 VDC

0 VDC

Field Bus_A

Field Bus

Field Bus_A

X12

Field Bus_B

AR 05

511

612

AR 06

Field Bus_B

Analog

input

AI_01

AI_02

24 VDC

4-20 mA

AR 07

output

AI_03

AI_04

578910 11 12

24 VDC

4-20 mA

AR 08

13410

AO_01

4-20 mA

AO_02

24 VDC

DI_01

4-20 mA

Digital

input

DI_02

24 VDC

DI_03

Danfoss

DI_04

VDC

0 VDC

Power/

X10

D1 D2 D3 D4

Digital output

Danfoss

Expansion Module

Main Bus

Field Bus_A

Field Bus_B

X11

Field Bus

Power

24 VDC

0 VDC

< 24 VDC

1 2 3 4

24 VDC

0 VDC

560 R

Field Bus_A

Field Bus_B

X12

Analog

input

AI_01

AI_02

24 VDC

4-20 mA

Analog output

AI_03

AI_04

AO_03

AO_04

578910 11 12

24 VDC

4-20 mA

24 VDC

4-20 mA

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User Guide | Danfoss Gas Detection - Controller unit and Expansion module

4 Operation

4.1 Function of the keys and LEDs on the keypad

The complete conﬁguration and service are made via keypad user interface in combination with the LC display screen. Security is provided via three password levels against unauthorized intervention.

Exits programming, returns to the previous menu level.

Enters sub menus, and saves parameter settings.

Scrolls up & down within a menu, changes a value.

Moves the cursor position.

LED light red: Flashes when alarm one or more alarms are active. LED dark red: Flashes when alarm two and alarms of higher priority are active. LED yellow: Flashes at system or sensor failure or when maintenance date exceeded or in voltage-free status with the option power failure ﬂashing light. LED green: Power LED

4.2 Setting / changing of parameters and set points

Open desired menu window. Code input ﬁeld opens automatically, if no code is approved.

After input of valid code the cursor jumps onto the ﬁrst position segment to be changed.

Push the cursor onto the position segment, which has to be changed.

Set the desired parameter / set point with the keys.

Save the changed value, conﬁrm storage (ENTER).

Cancel storage / close editing / go back to next higher menu level (ESCAPE function).

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User Guide | Danfoss Gas Detection - Controller unit and Expansion module

4.3 Code Levels

According to the regulations of national and international standards for gas warning systems, all inputs and changes are protected by a four-digit numeric code (= password) against unauthorised intervention. The menu windows of status messages and measuring values are visible without entering a code.

The release of a code level is cancelled if no button is pushed within 15 minutes.

The code levels are classiﬁed in order of priority: Priority 1 has top priority.

Priority 1: (code 5468, not changeable)

Code level priority 1 is intended for the service technician of the installer to change parameters and set-points. This password allows working on all settings. For opening the parameter menus you must ﬁrst activate the service mode after code release.

Priority 2: (code 4009, not changeable)

With code level 2, it is possible to lock / unlock transmitters temporarily. This password is only given to the end user by the installer in problem situations. In order to lock / unlock the sensors you must ﬁrst activate the service mode after code release.

Priority 3: (code 4321, is settable in the maintenance information menu)

It is only intended to update the maintenance date. Normally the code is only known by the service technician who has last changed it since it can be changed individually via priority 1.

Priority 4: (password 1234) (code not changeable)

Code level priority 4 allows the operator:

- to acknowledge faults,

- to set date and time,

- to conﬁgure and to operate the data logger option, after activation of the operation mode “Service Mode”:

- to read all parameters,

- to manually operate test function of the alarm relays (functional test of the connected units),

- to manually operate test function of the analog outputs (functional test of the connected units).

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User Guide | Danfoss Gas Detection - Controller unit and Expansion module

5 Menu Overview

Menu operation is done via a clear, intuitive and logical menu structure. The operating menu contains the following levels:

• Starting menu with indication of the device type if no MP is registered, otherwise scrolling display of the gas concentrations of all registered sensors in 5-second intervals. If alarms are active, only the values of the sensors currently in alarm status are displayed.

• Main menu

• Submenu 1 to 3

Power On Time 19s

Starting menu

After 30 sec.

Danfoss

19.04.18 10.55

Main menu Submenu 1

System Errors

Status Alarms

Display of

gas concentration

Reading and reset of errors See from point 5.1

Display of the status of actual alarms See point 5.2

Alarm Relays Status

Signal Relays Status

Measuring Values

Maintenance Information

Data Logger

Display of the alarm relays status Manual operation of the relays See from 5.3

Display of the signal relays status Manual operation of the relays See from 5.3

Display of measuring values See from 5.4

Information about the connected devices See from 5.5

Reading and change of the data logger parameters See from 4.6

Display Parameters

Parameters

General display parameters without safety relations See from 5.6

Reading and change of the relay, measuring point and system parameters (securityrelevant) See from 5.7

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User Guide | Danfoss Gas Detection - Controller unit and Expansion module

5.1 Fault Management

5.1.1 Acknowledge a Fault

5.1.2 Error Memory

The integrated fault management records the ﬁrst 100 faults with date and time stamps in the menu „System Errors“. Additionally a record of the faults occurs in the “Error memory”, which can only be read and reset by the service technician.

A pending fault activates the fault indication relay. The yellow LED (Fault) starts to ﬂash; the fault is displayed in plain text with date and time in the starting menu.

According to the directives of the gas measuring technique, accumulated errors are allowed to be acknowledged automatically. The automatic acknowledgment of a fault is only possible after having removed the cause!

The menu „Error Memory“ in the main menu “System Error” can only be opened via the code level priority 1.

In the error memory, the ﬁrst 100 faults that have occurred and have already been acknowledged in the menu “System Error” are listed for the service technician in a power failure safe way.

Error Memory

Select menu “Error Memory”

In case of the fault of a connected sensor the alarms deﬁned in the menu “MP Parameter” are activated in addition.

Attention:

This memory should always be read during maintenance, relevant faults should be tracked and entered in the service logbook, and ﬁnally the memory should be emptied.

DP1 Error

05.02 10:38

DP1 Error Reset?

DP1 Error cancelled

Fault acknowledged

Example: Communication error DP01 Error

Acknowledge the fault message?

Fault message acknowledged

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User Guide | Danfoss Gas Detection - Controller unit and Expansion module

5.1.3 System Messages and Errors

The devices connected via the analog interface can only report their malfunction by signal underrange or overrange. The reason for signal underrange mostly comes from bad, wrong or missing signal wiring that is the reason for the error.

The following system error messages of the analog interface are detected and recorded.

“AP 0X Overrange” Current signal at analog input > 21.2 mA Cause: Short-circuit at analog input, analog sensor not calibrated, or defective. Solution: Check cable to analog sensor, make calibration, replace sensor.

“AP Underrange” Current signal at analog input < 3.0 mA Cause: Wire break at analog input, analog sensor not calibrated, or defective. Solution: Check cable to analog sensor, make calibration, replace sensor.

Any device with microprocessor and digital communication - such as digital heads, sensor boards, expansion modules and even the controller - is equipped with extensive self-monitoring systems and diagnostic functions.

They enable detailed conclusions about the error causes and help the installers and operators to quickly determine the cause, and/or to arrange an exchange.

These errors can only be transmitted when the connection to the central (or tool) is intact.

“DP 0X Sensor Element” (0x8001) Sensor element at the sensor head – diagnostic function reports an error. Cause: Sensor pins broken, mechanical or electrical damage Solution: Exchange sensor head.

“DP 0X ADC Error” (0x8002) Monitoring of the ampliﬁer and AD converter circuits at the input device reports an error. Cause: Mechanical or electrical damage of the ampliﬁers Solution: Replace device.

“DP 0X Voltage” (0x8004) Monitoring of the sensor and/or process power supply, device reports an error. Cause: Mechanical or electrical damage of the power supply Solution: Measure tension if too low, replace device.

“DP 0X CPU Error” (0x8008) Monitoring of the processor function – reports an error. Cause: Mechanical or electrical damage of the processor Solution: Replace device.

“DP 0x EE Error” (0x8010) Monitoring of the data storage – reports an error. Cause: Electrical damage of the memory or conﬁguration error Solution: Check conﬁguration, replace device.

“DP 0X I/O Error” (0x8020) Power ON or monitoring of the in/outputs of the processor - reports an error. Cause: During restart, electrical damage of the processor or of circuit elements Solution: Wait until Power On is over, replace device.

“DP 0X Overtemp.” (0x8040) Ambien temperature too high; the sensor outputs the measurement value for a determined period and switches to error state after 24 h. Cause: Too high ambient temperature Solution: Protect the device from direct sunlight or check climatic conditions.

“DP 0X Overrange” (0x8200) Signal of sensor element at the sensor head is out of range. Cause: Sensor not calibrated correctly (e.g. wrong calibration gas), defective Solution: Recalibrate sensor, replace it.

“DP 0X Underrange” (0x8100) Signal of sensor element at the sensor head is out of range. Cause: Wire break at sensor element input, sensor drift too high, defective. Solution: Recalibrate sensor, replace it.

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User Guide | Danfoss Gas Detection - Controller unit and Expansion module

5.1.3 Error Memory (continued)

The controller monitors the communication between request and response. If the reply is too late, incomplete or incorrect, the controller recognizes the following errors and reports them.

“SB 0X Error” (0x9000) Communication error from central unit to SB (sensor board) Cause: Bus line interrupted or short circuit, DP 0X registered at the controller, but not addressed. SB 0X defective. Solution: Check line to SB 0X, check SB address or MP parameters, replace sensor.

“DP 0X Error” (0xB000) Communication error of SB to DP 0X sensor Cause: Bus line between SB and head interrupted or short circuit, DP 0X registered at the controller, but not conﬁgured at SB, wrong gas type, DP 0X defective. Solution: Check line to DP 0X, check sensor address or parameters, replace sensor.

“EP_06 0X Error” (0x9000) Communication error to EP_06 0X module (expansion module) Cause: Bus line interrupted or short circuit, EP_06 0X registered at the controller, but not addressed or addressed incorrectly, EP_06 0X module defective Solution: Check line to EP_06 0X, check module address, replace module.

“Maintenance” (0x0080) System maintenance is due. Cause: Maintenance date exceeded. Solution: Perform the maintenance.

“DP XX locked” This MP input is locked (MP is physically present, but locked by the “AP XX locked” operator)

Cause: Operator intervention. Solution: Eliminate the cause of a possible fault and then unlock the MP.

“UPS Error” (0x8001) UPS doesn’t work correctly, can only be signaled by the GC. Cause: Defective UPS – too high or too low voltage Solution: Replace UPS.

“Power Failure” (0x8004) can only be signaled by the GC. Cause: Power failure or fuse tripped. Solution: Check power supply or fuses.

“XXX FC: 0xXXXX” Occurs, if there are several errors from one measuring point. Cause: Several causes Solution: See the speciﬁc errors.

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User Guide | Danfoss Gas Detection - Controller unit and Expansion module

5.2 Status Alarm

5.3 Relay Status

Display of the currently pending alarms in plain text in the order of their arrival. Only those measuring points are displayed, where at least

Interventions are possible in this menu item only for the acknowledgment of latching alarms.

Pending alarms cannot be acknowledged. one alarm is active. The alarms are generated either in the controller (alarm) or directly on site in the sensor / module (local alarm).

Main menu Submenu 1

Alarm Status DP 1

“A1

Symbol Description Function

AP X Measuring Point No. Analog measuring point X = 1 - 32, where an alarm is pending.

DP X Measuring Point No. Digital measuring point X = 1 - 96, where an alarm is pending.

‘A1 ‘‘A1

Alarm status

‘A1 = Local alarm 1 active (generated in the sensor / module) A1 = Alarm 1 active (generated in the central control)

DP 1 Acknowledge?

Reading of the current status of alarm and signal relays. The manual operation (test function) of the alarm and signal relays is done in the menu Parameters.

Main menu Submenu 1

Selection of the alarm relay 1 – 32

Alarm Relay Status

Alarm Relay 1 Status OFF

5.4 Menu Measuring Values

Selection of the signal relay 1 - 96

Signal Relay Status

Signal Relay 1 Status OFF

In this menu, the display shows the measuring value with gas type and unit. If the alarm evaluation is deﬁned via the average, the display shows the current value (C) and additionally the average value (A).

Main menu Submenu 1

D 1 CO ppm A! 120,0A 150,0C

D 1 CO ppm #! 120,0A 150,0C

A 1 CO ppm ?! 132,7A 162,7C

Symbol Description Function

DX Measured value Measured value from bus sensor with MP address with X = 1 - 96

AX Measured value Measured value from analog sensor at analog input with AX = 1 - 32

CO Gas type See 4.7.3

ppm Gas unit See 4.7.3

A Average value Arithmetic average (30 measured values within the time unit)

C Current value Current value of gas concentration

A! Alarm MP has triggered an alarm

# Maint. info Device has exceeded maintenance date

? ConﬁgError MP conﬁguration not compatible

$ Local mode Local special mode is active

Error Fault MP Communication error, or signal out of the measuring range

Locked MP locked MP was temporarily locked by the operator.

The information ConﬁgError has priority to maintenance information. Alarm information is always displayed with „!“, even if ConﬁgError or maintenance information are active.

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User Guide | Danfoss Gas Detection - Controller unit and Expansion module

5.5 Maintenance Information

A control of the maintenance intervals required by law (SIL) or by the customer is integrated in the Controller system. When changing the maintenance intervals, you have to observe legal and normative regulations and the manufacturer’s speciﬁcations! Always after that, a calibration must be performed so that the change can take eﬀect.

System maintenance message:

At commissioning or after successful maintenance, the date (battery backed) for next due maintenance of the whole system has to be entered. When this date has been reached, the maintenance message is activated.

Sensor maintenance message:

Sensors need regular calibration for complying with the speciﬁed accuracy and reliability. In order to avoid complex manual documentation, the sensors store their run time between the calibration intervals continuously and permanently. If the run time since the last calibration exceeds the sensor maintenance interval stored in the sensor, a maintenance message is sent to the central control.

The maintenance message is reset during calibration and the running time since the last calibration is set to zero.

In case of a pending maintenance message, the phone no. of the service company appears in the main menu instead of the time / date information and the yellow LED on the display starts to ﬂash.

The maintenance message can only be cleared by removing the cause - changing the maintenance date or calibration or replacement of the sensors.

In order to distinguish between the sensor maintenance messages and the system maintenance message and to get a quick allocation of the serviceable sensors, the measured value in the menu item Measured Values gets the maintenance preﬁx “#”.

As additional information, a separate window displays the time (in days) when the next sensor is due for maintenance. If several sensors are connected, the shortest time is always displayed. In the submenu, you can scroll through the display of all active measuring points to determine the sensors where the maintenance is due soon.

The largest representable number is 889 days (127 weeks / 2.5 years). If the next maintenance is due in an even longer period, the time display is still limited to 889 days.

Device reaction with pending maintenance message:

The maintenance signal can be ORed to each of the active relays in the menu Relay Parameters. In this way, one or more relays can be activated in case of maintenance (see 4.8.2.9).

Main menu Submenu 1

Information about the connected sensors

Maintenance Information

Next maintenance In: 365 days

Maint. date XX.XX.XXXX

Maint. password Password ****

Maint. date DP X: 365 days

Scrolling through all active sensors and display of the related days remaining until next maintenance.

Maintenance date, stored in the display; after expiry, only message in the display, no other external reporting.

Maintenance password, stored in the display, allows you your individual maintenance password for adaptation of the maintenance date, enables execution of test functions.

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User Guide | Danfoss Gas Detection - Controller unit and Expansion module

5.6 Display Parameter

In the menu Display Parameter you can ﬁnd the general, security irrelevant parameters of the gas controller.

These parameters can be changed during the operation mode of the controller.

Main menu Submenu 1

Display Parameter

Software Version XXXXX - YYYYY

Language English

Service TEL:

Time System EU

See 5.6.1, no intervention possible

See 5.6.2

See 5.6.3

See 5.6.4

5.6.1 Software Version

5.6.2 Language

Time hh:mm:ss

Date TT.MM.JJ

Error time delay 120s

X Bus Slave Adr. 1 MODBUS

Symbol Description Function

XXXXX YYYYY

Selection of the menu language.

Symbol Description Default Function

English Language English

Software Version of the displays Software Version of the basic board

XXXXX Software Version YYYYY Software Version

English USA English German French

See 5.6.4

See 5.6.5

See 5.6.6

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User Guide | Danfoss Gas Detection - Controller unit and Expansion module

5.6.3 Service Phone Number

5.6.4 System Time, System Date

5.6.5 Error Time Delay

5.6.6 X Bus Slave Address

The service phone no. can be entered individually in the next menu.

Symbol Description Default Function

Phone No. Input of the individual service phone no.

Input and correction of time and date. Selection of time and date format

Symbol Description Default Function

EU Time format EU

hh.mm.ss Time

TT.MM.JJ Date

Symbol Description Default Function

s Delay 120s

EU = Display of time and date in EU format US = Display of time and date in US format

hh.mm.ss = Input of the correct time (EU format) hh.mm.ss pm = Input of the correct time (US format)

TT.MM.JJ = Input of the correct date (EU format) MM.TT.JJ = Input of the correct date (US format)

Deﬁnition of a delay time when a communication error is shown on the display. (A delay on the fault output is not allowed, therefore not used.)

(only existing, if X Bus function is available)

Symbol Description Default Function

Input of the slave address at the X bus. In addition to the address, the available option appears. Currently only Modbus available (pay attention to the additional documentation of the protocol)

Address

Slave address at the X Bus interface

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5.7 Parameters

In the menu Parameters you can ﬁnd the parameter functions of the gas controller.

Main menu Submenu 1

Parameters Service

OFF

You can activate the following parameters only with Service ON.

Alarm Relay Parameters

Signal Relay Parameters

Digital meas. value Parameters

Analog meas. value Parameters

See 5.7.1 (password protected)

See 5.7.2

See 5.7.3

System Parameters

Alarm Relay Test function

Signal Relay Test function

Analog Outputs Test function

See 5.7.4

See 5.7.5

See 5.7.6

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5.7.1 Display Parameter

Service and maintenance work mustn’t be executed when the gas controller is in the normal measuring mode for it isn’t sure that all response times and functions can be observed correctly.

Further parameters menu items are therefore only accessible in the Service ON state. The Service ON state is reset to normal operation mode either automatically 15 minutes after the last key press or manually in the menu by the

For calibration and service work you ﬁrst have

operator. to activate the special status mode on the controller. Only then you are allowed to change the safety related parameters. The special operating mode is activated by, among others, the function Service ON.

Symbol Description Default Function

OFF Service OFF

Sensors can’t be switched into the “special mode”

from the controller. It can only be done directly at

the sensor using the tool. Sensors in the “special

mode” are not included in the alarm evaluation.

OFF = No reading and changing of parameters. ON = Controller in Special status mode, parameters can be read and changed.

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5.7.2 Menu Relay Parameter

Reading and changing of the parameters separately for each relay.

Submenu 1 Submenu 2

Selection of alarm relay 1 – 32

Alarm Relay Parameters

Signal Relay Parameters

Alarm Relay 1 Used

Selection of signal relay 1 – 96

Signal Relay 1 Not Used

Relay mode See 5.7.2.1

Operation mode relay See 5.7.2.2

Relay function See 5.7.2.3

Submenu 3

Relay Mode Used

Operation Mode Energized

Static / Flashing ON

Alarm trigger quantity See 5.7.2.4

Deﬁnition horn function See 5.7.2.5

Deﬁnition external operation See 5.7.2.6

Delay time for relay ON See 5.7.2.7

Delay time for relay OFF See 5.7.2.7

Collective fault OR operation See 5.7.2.8

Alarm quantity 1

Time- Recurr. - DI 0s Yes 0

External Mode  DI 0  DI 0

ON-Delay Time 0 s

OFF-Delay Time 0 s

Function Fault OFF

Maintenance OR operation See 5.7.2.9

Function Maintenance OFF

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Ackn

5.7.2.1 Relay Mode

5.7.2.2 Relay Operation Mode

5.7.2.3 Relay Function Static / Flash

5.7.2.4 Alarm Trigger Quantity

Deﬁnition of the relay mode

Symbol Description Default Function

Used Mode Used

Used = Relay is registered on the controller and can be used Not Used = Relay is not registered on the controller

Deﬁnition of the relay operation mode

The terms energized / de-energized for this item come from the terms open-circuit and closed-circuit principle used for safety circuits. Here, however, not the relay contact circuit is meant (as a changeover contact, optionally available in the two principles), but the activation of the relay coil.

The LEDs attached to the modules show the two states in analogy. (LED oﬀ -> relay de-energized)

Symbol Description Default Function

De-energ. Mode De-energ.

De-energ. = Relay (and LED) de-energized, if no alarm active Energized = Relay (and LED) permanently energized, if no alarm active

Deﬁnition of the relay function

The function “Flashing” represents a connection option for warning devices to improve visibility. If “Flashing” is set, this mustn’t be used as a safe output circuit any more.

A combination of relay mode energized with ﬂashing operation makes no sense and is therefore suppressed.

Symbol Description Default Function

ON Function ON

ON = Relay function ﬂashing at alarm ( = time ﬁxed 1 s) impulse / break = 1:1 OFF = Relay function static ON at alarm

In some applications it is necessary that the relay switches only at the nth alarm. Here you can set the number of alarms necessary for relay tripping.

Symbol Description Default Function

Quantity Function 1 Only if this quantity is reached, the relay trips.

5.7.2.5 Horn Function (not safe output circuit because resettable)

The horn function is considered active if at least one of the two parameters (time or assignment to digital input) is set. The horn function retains its functionality even for alarms in latching mode.

Symbol Description Default Function

0 = Reset of the relay after time having run out via DI

Recurrence Reset mode 0

Time 120

DI 0 Assignment, which digital input resets the relay.

(external) or by pushbuttons 1 = After reset of the relay, time starts. At the end of the set time, the relay is activated again (recurrence function).

Enter time for automatic reset function or recurrence function in s 0 = no reset function

Horn function resettable:

The activated horn can be permanently reset with this function. The following possibilities to acknowledge are

Due to ﬁxed polling cycles, external buttons must

be pressed for a few seconds before the reaction

occurs.

available for the alarm relay as horn relay:

• By pressing the left button (ESC). Only available in starting menu.

• Automatic reset at the end of the preset time (active, if value > 0).

After successful acknowledgment the horn remains permanently reset until all assigned alarms for this relay function are inactive again. Only then it is triggered anew in case of an alarm.

• By an external pushbutton (assignment of the appropriate digital input DI: 1-n).

Acknowledge the horn relay

Alarm 4

Relay 4

O

Time

Gas concentration higher lower than threshold

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signal

O

owledging

Reset command by timer, external push-button or one of the operating keys.

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Ackn

5.7.2.5 Horn Function (not safe output circuit because resettable) (Continued)

5.7.2.6 External Override of Alarm / Signal Relay via DI

Recurrence of the horn relay

After an alarm has been triggered, the horn will

This process is repeated endlessly as long as the

associated alarm remains active. remain active until a reset action is done. After acknowledgment of the horn relay/s (clicking a button or via external input) a timer starts. When this time has run out and the alarm is still acting, the relay is set again.

signal

O

Gas concentration higher

Time

lower than threshold

Alarm 4

Relay 4

owledging

Reset command by timer, external push-button or one of the operating keys.

Manual operation of the alarm relays via DI does not trigger the “special mode”, as this is a deliberate and conﬁgured functionality. The use of the override should be used with caution, particularly the function of setting “external OFF”.

Assignment of a digital input (DI) for the external switching on and oﬀ of the alarm relay. This function has priority to gas alarm.

If External ON and External OFF are conﬁgured simultaneously to the same relay and both are active at the same time, so in this state, only the External OFF command is executed.

In this mode, too, the relays work respecting the parameter settings “Static / Flash” and “energized / de-energized”.

Symbol Description Default Function

↗ DI 0 External ON 0 As long as DI 1-X is closed, relay switches ON

↘ DI 0 External OFF 0 As long as DI 1- X is closed, relay switches OFF.

5.7.2.7 External Override of Alarm / Signal Relay via DI

5.7.2.8 OR Operation of Fault to Alarm / Signal Relay

Deﬁnition of the switch-on and switch-oﬀ delay of the relays. If the latching mode is set for this relay, the respective switch-oﬀ delay is without eﬀect.

Symbol Description Default Function

0 s

Switch-ON Delay Time

Switch-OFF Delay Time

Alarm / Signal Relay is only activated at the end of the deﬁned time. 0 sec. = No delay

Alarm / Signal Relay is only deactivated at the end of the deﬁned time. 0 sec. = No delay

Enables or disables the Fault OR operation of the current alarm / signal relay. If the OR operation for this relay is set to active = 1, all device faults will activate the output in addition to the alarm signals.

In practice, this ORing will be used if, for example, fans should run or warning lights should be activated in case of device malfunction, since the fault message of the central control is not permanently monitored.

Note:

Exceptions are all errors of the measurement point because the MPs can be assigned to each alarm separately in the menu MP Parameters. This exception is used to build up targeted zone related signaling in case of MP errors, which should not aﬀect other zones.

Symbol Description Default Function

0 No assignment 0 Alarm and/or signal relay isn’t aﬀected if a device fault occurs.

1 Activated assignment 0 Alarm and/or signal relay turns on if a device fault occurs.

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5.7.2.9 OR Operation of Maintenance to Alarm / Signal Relay

Enables or disables the Maintenance OR operation of the current alarm / signal relay. If the OR operation for this relay is set to active = 1, the output will be activated in addition to the alarm signals when at least one maintenance message is pending.

In practice, this ORing will be used if, for example, fans should run when the sensor accuracy isn’t ensured anymore because of missing calibration (therefore pending maintenance message) or warning lights should be activated, since the maintenance information of the central control is not permanently monitored.

Note:

Resetting of the activated maintenance message is only possible by calibration of the sensors or by disabling this OR function.

Symbol Description Default Function

0 No assignment 0

1 Activated assignment 0

Alarm and/or signal relay isn’t aﬀected if a maintenance message occurs.

Alarm and/or signal relay turns on if a maintenance message occurs.

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5.7.3 Menu MP Parameters

For reading and changing measuring point parameters for each bus and analog sensor including registration of MP and assignment of the alarm relays.

Submenu 1 Submenu 2

Selection of digital measuring point (1 – 96)

Digital Meas. Value Parameters

Analog Meas. Value Parameters

DP 1 active

Selection of analog measuring point (1 – 32)

AP 1 active

Activate or deactivate MP See 5.7.3.1

Activation of a temporary blocking See 5.7.3.2

Submenu 3

Changes only possible in code level priority 1

MP Mode not active

Temporary Mode unlocked

Deﬁnition of gas type with unit See 5.7.3.3

Deﬁnition measuring range See 5.7.3.4

Deﬁnition alarm threshold 1 See 5.7.3.5

Deﬁnition alarm threshold 2 See 5.7.3.5

Deﬁnition alarm threshold 3 See 5.7.3.5

Deﬁnition alarm threshold 4 See 5.7.3.5

Nom./Gas/Unit 1110 CO ppm

Measuring Range 300 ppm

Threshold 1 C 0.0 ppm 

Threshold 2 A 0.0 ppm 

Threshold 3 A 0.0 ppm 

Threshold 4 A 0.0 ppm 

Hysteresis See 5.7.3.5

Hysteresis

0.0 ppm

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5.7.3 Menu MP Parameters (Continued)

Delay time for alarm ON See 5.7.3.6

Delay time for alarm OFF See 5.7.3.6

Deﬁnition of latching mode See 5.7.3.7

Assign MP fault to alarm See 5.7.3.8

Assign alarm to alarm relay See 5.7.3.9

Submenu 3

CV Alarm ON delay 0 s

CV Alarm OFF delay 0 s

Alarm - 1 2 3 4 LM - 0 0 0 0

Alarm - 1 2 3 4 Fault - 0 0 0 0

A1 A2 A3 A4 0 0 0 0

Assign MP signal to analog output X or/and Y See 5.7.3.10

Analog Output x y

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5.7.3.1 Activate – Deactivate MP

5.7.3.2 Lock or Unlock MP

5.7.3.3 Selection Gas Type with Unit

Deactivation shuts the registered / not registered sensor down in its function, which means that there is no alarm or fault message at this measurement point. Existing alarms and faults are cleared with deactivation. Deactivated sensors do not output a collective fault message.

Symbol Description Default Function

active MP Mode Not active

active = Measuring point activated at the controller. not active = Measuring point not activated at the controller.

In the temporary Lock Mode, the function of the registered sensors is put out of service, which means that there is no alarm or fault message at this measuring point. Existing alarms and faults are cleared with the locking. If at least one sensor is blocked in its functionality, the collective fault message is activated after expiry of the internal fault delay time, the yellow fault LED is ﬂashing and a message appears in the menu System Errors.

Symbol Description Default Function

unlocked Lock mode unlocked

unlocked = MP free, normal operation locked = MP locked, SSM (collective fault message) active

Selection of the desired and connected gas sensor type (connection possible as digital sensor cartridge Basic, Premium or Heavy Duty).

The selection contains all necessary information for the controller, and is also used for comparing the real, digital data with the settings.

This feature increases the user and operating security. There is an entry available per gas type for each unit.

Sensor Internal type Measuring range Unit

Ammonia EC 100 E1125-A 0-100 ppm

Ammonia EC 300 E1125-B 0-300 ppm

Ammonia EC 1000 E1125-D 0-1000 ppm

Ammonia SC 1000 S2125-C 0-1000 ppm

Ammonia EC 5000 E1125-E 0-5000 ppm

Ammonia SC 10000 S2125-F 0-10000 ppm

Ammonia P LEL P3408-A 0-100 % LEL

CO2 IR 20000 I1164-C 0-2 % Vol

CO2 IR 50000 I1164-B 0-5 % Vol

HCFC R123 SC 2000 S2064-01-A 0-2000 ppm

HFC R404A, R507 SC 2000 S2080 0-2000 ppm

HFC R134a SC 2000 S2077 0-2000 ppm

HC R290 / Propane P 5000 P3480-A 0-5000 ppm

5.7.3.4 Measuring Range Deﬁnition

The measurement range must be adapted to the working range of the connected gas sensor.

For additional control by the installer, the settings in the controller must mandatorily match with the used sensors. If the types of gas and/or measurement ranges of the sensor don’t agree with the settings of the controller, the error “EEPROM / conﬁguration error” is generated, and the collective fault message is activated.

The range also aﬀects the display of the measured values, alarm thresholds and hysteresis. For measuring ranges <10 three decimals places, <100 two decimal places, <1000 one decimal place are displayed. For measuring ranges => 1000, the display is without decimal place. The resolution and accuracy of the calculation is not aﬀected by the diﬀerent measuring ranges.

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5.7.3.5 Threshold / Hysteresis

5.7.3.6 Delay for Alarm ON and/or OFF for Current Value Evaluation

5.7.3.7 Latching Mode Assigned to Alarm

For each measuring point four alarm thresholds are available for free deﬁnition. If the gas concentration is higher than the set alarm threshold, the associated alarm is activated. If the gas concentration falls below the alarm threshold inclusive hysteresis the alarm is again reset.

In the mode “Alarm at falling” the corresponding alarm is set in case of falling below the set alarm threshold and reset again when exceeding the threshold plus hysteresis. The display depends on the set measuring range: see 4.8.3.4. Unused alarm thresholds have to be deﬁned at measuring range end point, in order to avoid undesired alarms. Higher-level alarms automatically activate the lower-level alarms.

Symbol Description Default Function Symbol

A Evaluation A

80 ppm

↗ ↗

Alarm threshold

40 80 100 120 15

A C

Threshold 1 Threshold 2 Threshold 3 Threshold 4 Hysteresis

A = Alarm evaluation with average value of MP C = Alarm evaluation with current value of MP

Gas concentration > Threshold 1 = Alarm 1 Gas concentration > Threshold 2 = Alarm 2 Gas concentration > Threshold 3 = Alarm 3 Gas concentration > Threshold 4 = Alarm 4 Gas concentration < (Threshold X –Hysteresis) = Alarm X OFF

↗ =Alarmreleaseatincreasingconcentraons ↘ =Alarmreleaseatfallingconcentrations

Deﬁnition of delay time for alarm ON and/or alarm OFF. The delay applies to all alarms of an MP, not with average value overlay, see 5.7.3.7.

Symbol Description Default Function

0 s CV Alarm ON delay 0

0 s CV Alarm OFF delay 0

Gas concentration > Threshold: Alarm is only activated at the end of the ﬁxed time (sec.). 0 sec. = No delay

Gas concentration < Threshold: Alarm is only deactivated at the end of the ﬁxed time (sec.). 0 sec. = No delay

In this menu you can deﬁne, which alarms should work in latching mode.

Symbol Description Default Function

Alarm - 1 2 3 4 SBH - 0 0 0 0

Latching MP 0 0 0 0

0 = No latching 1 = Latching

5.7.3.8 MP Fault Assigned to Alarm

5.7.3.9 Alarm Assigned to Alarm Relay

5.7.3.10 MP Signal Assigned to Analog Output

In this menu you can deﬁne, which alarms should be activated by a fault at the measuring point.

Symbol Description Default Function

Alarm - 1 2 3 4 SBH - 0 0 0 0

Fault MP 1 1 0 0

0 = Alarm not ON at MP fault 1 = Alarm ON at MP fault

Each of the four alarms can be assigned to any physically existing alarm relay 1 to 32 or signal relay R1 to R96. Unused alarms aren’t assigned to an alarm relay.

Symbol Description Default Function

A2 A3 A4

0 0 0 0

RX = Assignment of the alarms A1 - A4 to the signal relays R1-R96 X = Assignment of the alarms A1 - A4 to the alarm relays 1-32

The measuring point signal (current or average value) can be assigned to one of the max. 16 analog outputs. The same assignment to diﬀerent outputs (8) generates a functional duplication. This is often used to control remote devices in parallel (supply fan in the basement, exhaust fans on the roof).

If several assignments are made to one analog output, the output signal is output WITHOUT fault information. It should be noted that a mixture of diﬀerent types of gas often makes no sense. In the case of a single assignment = additional analog output 1:1, the signal is output WITH fault information.

Analog output see also: 5.7.4.4.

Symbol Description Default Function

x = MP Signal is assigned to analog output x (activates output control -> signal can be used)

x y Analog Output x y

y = MP Signal is assigned to analog output y (activates output control -> signal can be used) 0 = MP Signal isn’t assigned to any analog output or no release in the System Parameters (no active output control)

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5.7.4 Menu System Parameters

Submenu 1 Submenu 2

System Parameters Serial Number

XXXX

Date of Production XX.XX.XX

Maintenance Interval

XXXX

Power On Time 0s

AO Function

No intervention possible, see 5.7.4.1

Deﬁnition of the maintenance interval See 5.7.4.2

Deﬁnition of power on time in sec. See 5.7.4.3

Selection of analog output function See 5.7.4.4

5.7.4.1 System Information

5.7.4.2 Maintenance Interval

5.7.4.3 Power On Time

R Duplication

Selection of the relay duplication See 5.7.4.5

Symbol Description Default Function

XXXX Serial Number 0 Serial number

XX.XX.XX Date of Production 0 Date of production

The description of the maintenance concept is shown in 4.5. The maintenance interval of the controller is set here. If 0 is set, this function is disabled.

Symbol Description Default Function

XXXX Maintenance Interval Entry of the interval between two services in days

Gas sensors need a running-in period, until the chemical process of the sensor reaches stable conditions. During this running-in period the current signal can lead to an unwanted triggering of a pseudo alarm. Therefore the Power On time is started at the Gas Controller after you have switched on the power supply. While this time is running out, the Gas Controller doesn’t activate alarms or UPS relays. The Power On status occurs on the ﬁrst line of the starting menu.

Attention:

During the Power On phase the controller is in “Special Mode” and doesn’t perform further functions beside the starting diagnostic procedures. A count-down Power On time in seconds is shown on the display.

Symbol Description Default Function

30s Power On time 30s XXX = Deﬁnition of the power On time (sec.)

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5.7.4.4 Analog Output

The Gas Controller Module as well as the expansion modules 1 to 7 have got two analog outputs (AO) with 4 to 20 mA signal each. The signal of one or more measuring points can be assigned to each of the analog outputs; in this case, the signal control becomes active and the output is current monitored. The signal monitoring is self-healing and therefore mustn’t be acknowledged. The assignment is done in the menu “MP Parameter” for each MP. The measuring point sends the current value signal to the analog output.

Out of the signals of all assigned measuring points the Gas Controller determines the minimum, the maximum or the average value and transmits it to the analog output. The deﬁnition, which value is transmitted, is done in the menu “Analog Output X”.

To allow ﬂexible air volume regulation of speed-controlled motors, the slope of the output signal can be adapted to the on-site conditions and varied between 10 - 100%.

As an alternative to the activation via the controller (deﬁned by the number 1), the analog inputs can be assigned to the analog outputs of the same expansion module (menu in the expansion module). For this purpose, the number 10 - 100% has to be entered on the expansion module.

Symbol Description Default Function

Analog Output 1

1 10-100 %

A Selection of source A

Max.

Selection of channel Selection of the analog output 1-16

0 = Analog output is not used

Selection of output signal

Selection of output mode

100 %

Max.

(therefore always de-activated response monitoring) 1 = Local use (not used in the central control) Selection of signal slope- permitted range 10 – 100 % 100 % gas signal control = 20 mA 10 % gas signal control = 20 mA (high sensitivity)

C = Source is current value A = Source is average value CF = Source is current value and additional fault message at AO AF = Source is average value and additional fault message at AO

Min. = Displays the minimum value of all assigned MP Max. = Displays the maximum value of all assigned MP Average = Displays the average value of all assigned MP

AO Function

Analog Output 1 100% A Max.

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5.7.4.5 Relay Multiplication

With the relay multiplication table, it is possible in the controller system to assign additional relay functions to an alarm. This corresponds in the end to one multiplication of the source alarm situation per entry.

The additional relay follows the alarm status of the source, but uses its own relay parameters to allow diﬀerent needs of the doubled relay. So the source relay can be conﬁgured, for example, as safety function in de-energized mode, but the doubled relay can be declared with ﬂashing function or as horn function.

There is a maximum of 20 entries for IN relays and OUT relays. Thus it is possible, for example, to expand one relay to 19 others or to double max. 20 relays. In the column IN (source), you can set the relay assigned to an alarm in the menu MP Parameter. In the column OUT (target), you can enter the relay needed in addition.

Note:

Manual intervention in the menu Relay Status or override in external ON or OFF by external DI do not count as alarm status, so they do only aﬀect the IN relay. If this is also desired for the OUT relay, it has to be conﬁgured separately for each OUT relay.

Number Description Default Status Function

0-30 0-96

IN AR Relay IN SR Relay

OUT AR Relay OUT SR Relay

0 = Function oﬀ X = Relay X should be multiplied (information source).

0 = Function oﬀ X = Relay X (target) should switch together with IN relay.

Example 1:

3 relay contacts are needed with the same eﬀect of relay 3, (see assignment of the relays in chapter MP Parameters.) Entry: 1: IN AR3 OUT AR7 Entry: 2: IN AR3 OUT AR8

IN OUT 1: AR 3 AR 7.

IN OUT 2: AR 3 AR 8.

If relay 3 is activated via an alarm, relays AR3, AR7 and AR8 switch at the same time.

Example 2:

2 relay contacts each are needed from 3 relays (for ex. AR7, AR8, AR9). Entry: 1: IN AR7 OUT AR12 (Relay 12 switches at the same time with relay 7) Entry: 2: IN AR8 OUT AR13 (Relay 13 switches at the same time with relay 8) Entry: 3: IN AR9 OUT AR14 (Relay 14 switches at the same time with relay 9)

IN OUT

This means that relay AR7 switches with AR12; AR8 with AR13; AR9 with AR14. The two examples can be mixed up, too.

1: AR 3 AR 7.

IN OUT 2: AR 3 AR 8.

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5.7.5 Test Function of the Alarm and Signal Relays

Submenu 1 Submenu 2

Selection of alarm relay 1 – 32

Alarm Relay Test function

Alarm Relay x Status OFF

Selection of signal relay 1-96

Signal Relay Test function

Signal Relay x Status OFF

For changes password needed (only possible in Special Mode!)

Select function

Alarm Test ON = Relay manual ON Alarm Test OFF = Relay manual OFF Automatic = Cancel manual operation

Take function over with

Signal Relay 1 Alarm Test ON

Signal Relay 1 Alarm Test OFF

Signal Relay 1 Automatic

Alarm Relay 1 Alarm Test ON

Alarm Relay 1 Alarm Test OFF

Alarm Relay 1 Automatic

5.7.6 Test Function of the Analog Outputs

The test function sets the target device (selected relay) in Special Mode and activates a timer that reestablishes the normal measurement mode after 15 minutes and ends the test function.

Therefore the yellow LED on the controller is on in the manual ON or OFF status.

The external operation of the relays via an assigned digital input has priority to the manual test function in this menu item.

Symbol Description Default Function

AR Status Relay Nr. X X = 1 – 32 Select alarm relay

SR Status Relay Nr. X X = 1 – 96 Select signal relay

Status OFF = Relay OFF (no gas alarm)

OFF Relay Status OFF

Status ON = Relay ON (gas alarm) Manual OFF = Relay manual OFF Manual ON = Relay manual ON Automatic = Relay in automatic mode

This feature is only available in Special Mode. With the test function you can enter the value (in mA) that should be physically output. The test function via the controller can only be applied when the analog outputs are overridden (conﬁguration 1 of analog outputs in the system parameters of the associated device, see 5.7.4.4).

Submenu 1 Submenu 2

Analog Outputs Test Function

AO 1 Set Value 4,02mA 0,00mA

AO 1 Set Value 4,02mA 12,00mA

On the left, the current set point of the

AO is shown. On the right, there is the

pre-set value entered by the operator.

After conﬁrming the AO accepts the

predetermined value and outputs it

physically. As the current set point

is transmitted again and again, the

AO 1 Set Value 12,00mA 12,00mA

conﬁrmation appears in the display at

the left.

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Danfoss Gas Detection User guide

Specifications and Main Features

Frequently Asked Questions

User Manual