Qel Q4 Controller II User manual

Q4 Controller II
Q4C-II Four Channel
Monitoring and Control System
INSTALLATION
OPERATION AND MAINTENANCE
MANUAL
QUATROSENSE ENVIRONMENTAL LTD.
5935 OTTAWA STREET, PO BOX 749 RICHMOND, ONTARIO CANADA K0A 2Z0
PHONE: [phone] FAX: [phone]
Web: www.QELsafety.com Email: [email protected]m

Table Of Contents
1. GLOSSARY ......................................................................................................................................... 2
2. GENERAL INFORMATION OVERVIEW ..................................................................................... 3
3. Q4C-II SPECIFICATIONS ................................................................................................................ 4
4. INSTALLATION ................................................................................................................................ 6
4.1 UNPACKING THE EQUIPMENT ................................................................................................................. 6
4.2 TYPE AND LOCATION ............................................................................................................................. 6
4.3 CABLING ................................................................................................................................................ 8
4.4 CONNECTORS ......................................................................................................................................... 8
4.5 POWER SUPPLY CONNECTION ................................................................................................................ 8
4.6 RS-485 INSTALLATION .......................................................................................................................... 9
4.7 SENSOR PORT RS-485 AND BAC-BOX INSTALLATION ........................................................................ 11
4.8 BUZZER, STROBE AND HORN OUTPUTS ................................................................................................ 11
5. FUNCTION AND CONFIGURATION .......................................................................................... 12
5.1 MISCELLANEOUS.................................................................................................................................. 12
5.2 RELAY CONFIGURATIONS .................................................................................................................... 12
5.3 VOTING MODE ..................................................................................................................................... 13
5.4 AVERAGING MODE .............................................................................................................................. 14
5.5 INPUTS AND OUTPUTS ADDRESSING .................................................................................................... 14
6. KEYPAD AND MENU ..................................................................................................................... 15
6.1 HOLD MODE: ....................................................................................................................................... 16
6.2 MENU MODE: ....................................................................................................................................... 16
6.3 MENU “SYSTEM SETTING” ................................................................................................................... 17
6.4 MENU “ZERO CAL” ............................................................................................................................. 18
6.5 MENU “SPAN CALIBRATION” ............................................................................................................... 18
6.6 MENU “SENSOR SETTING” ................................................................................................................... 19
6.7 MENU “RELAY 1 - 4”............................................................................................................................ 19
6.8 MENU “BUZZER / STROBE” .................................................................................................................. 20
6.9 MENU “ASSIGN OUTPUT” .................................................................................................................... 20
6.10 MENU “I/O SETTING” ...................................................................................................................... 21
6.11 MENU “OUTPUT DISABLE” .............................................................................................................. 21
6.12 MENU “BACNET” ........................................................................................................................... 21
6.13 Q4C-II MODBUS RTU PROTOCOL ................................................................................................... 21
7. HOW TO CREATE A DATABASE ................................................................................................ 22
8. COMPUTER INTERFACE: PROGRAMMING AND AUDITING ............................................ 23
8.1 M-VIEW INSTALLATION ....................................................................................................................... 23
9. TROUBLESHOOTING .................................................................................................................... 24
WARRANTY STATEMENT .................................................................................................................... 25

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1. Glossary
Actuate/De-Actuate: These terms are used instead of ‘make’ and ‘break’ to allow us to
distinguish between performing an action due to an environmental condition and whether the
contact may be closed (‘made’) or open (‘break’) because of our use of double throw contacts, and
the option of normally energized relays.
Averaging: When setting alarms, the alarm can be set to operate on the basis of the average signal
assigned to that relay. It must be the same gas range.
Baud rate: A measure of the speed at which data is transferred over a digital communication link.
Given as bit per second (bps). Generally the lower the speed, the more reliable.
bps: See Baud rate
Characteristic Impedance: The effects of capacitance and inductance of a pair of wires
expressed as an equivalent resistance.
Configuration Database: System configuration requires entering a great deal of information
concerning relay operation, sensor type and so on.
Dry Contacts: The relay contacts are supplied without power applied to any output terminal.
Normally Energized: The relay coil is energized in the non-alarm state. This is sometimes
referred to as ‘fail-safe’ because in the case of controller failure or loss of power, the relay
contacts will open.
Normally Open Contacts: In the non-alarm state, but under power, the contacts are open.
Latching: A relay once actuated remains actuated even though the condition has been removed.
Requires a manual operation to reset.
RS-485 (properly EIA-485): A wiring and electrical standard for digital communication in a
multi drop environment. It is a 2-wire system, with a differential signal allowing relative immunity
to variations in grounds between devices. RS-485: maximum 32 transceivers per loop, 4000 ft
(1300 meters) max. 120 ohm line termination required. (Line termination resistors are available on
all M-Series devices via selectable jumpers).
Stub: A short wiring link branching from the main line.
Voting: When more than one sensor and setpoint is assigned to a relay, then voting defines how
many must reach the setpoint before the relay actuates.

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2. General Information Overview
QEL’s Four Channel Gas monitoring and Control System is a set of remote digital sensors, such
as M-Series sensor/transmitter and Q-Series smart sensor, working with onboard relays and
optional BACnet BAC-Box together, they are monitored and controlled by the Q4 Controller.
QEL sensor/transmitters comprise a group of remote mountable sensors complete with electronics,
most of which have both analog and digital communications, and most of which have display and
onboard relay options.
The Q4 Four Channel Controller is a microprocessor based and a flexible programmable
controller with capability to work with up to four QEL digital sensor/transmitters through its RS-
485 smart/digital sensor port. With 4 onboard relays, the controller can assign any one (or up to
four) of the four digital sensor/transmitters to each relay. The Controller also equips a USB port to
allow traditional Windows PC software, M-View, to access the Controller config database.
Additional RS-485 port can be programmed through Menu to either work as a Modbus RTU port
for BAS or SCADA (as default) or work as a BACnet port to connect QEL BAC-Box, which
supports BACnet/IP protocol.
Additional features include 24 VDC transistor outputs for strobe light and horn as well as an on-
board buzzer.
The enclosure for the Q4 Controller is rated IP66 & NEMA 4, 4X, 12 & 13 and is UL listed.
Relay status indicator and RS-485 communication indicator are visible at the front of the
enclosure.
Power supply is designed for 24VDC/AC for all devices in the system. QEL can supply a
transformer for external mounting sized to the application if requested.
NOTE:
WHEN PROGRAMMING THE Q4C WITH A LAPTOP THROUGH USB PORT ENSURE THAT
THE LAPTOP IS NOT CONNECTED TO ANY POWER SOURCE. FAILURE TO FOLLOW
THESE INSTRUCTIONS COULD RESULT WITH DAMAGES TO THE CONTROLLER AND
OTHER DEVICES CONNECTED TO IT.

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3. Q4C-II Specifications
NOTICE: Installing or using this equipment in a manner not specified by the
manufacturer could cause electric shock, bodily injury, or risk of fire.
Specification:
Power Supply Voltage: 24VDC nominal, range 18 to 30VDC
24VAC nominal, range 15 to 24VAC 50/60HZ
Note: Q4C-II has full-wave rectifier and half-wave rectifier circuit on
board for flexibility. You will damage devices if you mix half wave and
full wave rectifiers on the same AC source. Use extreme caution when
sharing a common AC source. Sharing a common DC source is less
problematic.
Current: Q4C-II: max. 0.75 A (fuse protected)
Strobe & Horn: max. 0.25 A (fuse protected)
Note: No external over-current protection is required. Over-current
protection is provided by means of fuses F1 and F2/3. See fuse
specification below.
Fuse F1 on I/O Board for Q4C-II: Polyswitch 750mA
F2 / F3 on I/O Board for Strobe/Horn output: Polyswitch 250mA
Polyswitch device resets after the fault is cleared and power to the
circuit is removed
Enclosure IP66 & NEMA 4, 4X, 12 & 13 ratings
UL listed 508 listed (File # E65324)
On-Board Relays
4 Relays SPDT, Dry contacts, Relay1 to Relay4
Resistive load:
5.0A at 250VAC
5.0A at 30VDC
Inductive load:
3.7A at 250VAC
3.7A at 30VDC

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Environmental
conditions Location: Indoor use only
Altitude: Up to 2 000 m
Temperature: -20 °C to 50 °C
Relative Humidity: 0 to 95% RH (non-condensing) up to 31 °C
Decreasing linearly to 80% at 40 °C
Pollution Degree: 2, in accordance with IEC 664.
Display & Keypad
LCD display c/w backlight
4x tactile & audible keypad
Panel Indicators
8 Status LEDs
RS-485 port TX/RX Status LED for Sensor Network
RS-485 port TX/RX Status LED for Modbus or BAC-Box
4 Relay Status LEDs
On-Board Buzzer
Used for internal warning and alarm, 3700 Hz Continuous
It’s not used for Alarm-Sounding Appliance.
For external Alarm-Sounding Appliance, they can be connected to the
below Horn/Strobe terminal blocks, the Alarm-Sounding Appliance
sound-pressure level should be at least 85dB at 10 feet according
standard UL2017 Audibility Test
Horn & Strobe
Two 24 VDC transistor driver are for Horn and Strobe
Dedicated 24VDC terminals are supplied for connection to standard
strobe and horn set.
Strobe driver can be set to 50% duty of pulse or 100% duty ON
Maximum of 250mA on the 24VDC power supply
Remote Devices
RS-485 Sensor Ports with QEL Controller Protocol
- Available QEL digital transmitters, such as Q-series digital sensors,
M-series digital sensors and QIRF
Modbus Slave
Port
Or
BACnet Port
RS-485 port, default setting is for Modbus protocol
_ Responds as a Modbus Slave using RTU protocol.
Q4-Controller supplies read status information only
_ Connect to QEL BACnet/IP module BAC-Box
The BACnet must be enabled in the BACnet MENU
Certification
Pending:
Standard UL2017 and CSA 61010-1

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4. Installation
4.1 Unpacking the equipment
The Q4 Controller is shipped with the following:
 The Q4 Controller in a NEMA 4X enclosure
 M-View USB Flash Drive
 User Operation Manual
 Installation Drawing
 USB Cable A to B M/M
 Enclosure mounting feet kit
4.2 Type and Location
The Q4 Controller is designed and certified for installation in a fixed location where is not subject
to shock and vibration. Please observe the temperature and humidity specifications above for
ambient conditions. Observe the possibility of leaks or possible water damage from cleaning done
in the area.
The mounting height and location should provide easy access to the wiring terminals and front-
panel. Backlighting is provided for the display in case of low lighting conditions.
It is recommended that controllers be installed 5 feet (1.5m) above the floor, at approximate eye
level. Securely mount the controller using the appropriate screws.

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Figure 1: Q4 Controller Physical Dimensions
The controller also comes with a mounting feet kit as an option. The same wall mounting holes
can used to install the feet kit.

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4.3 Cabling
Approved cable conduit and conduit connectors should be used to ensure a safe and reliable
installation. Check the local wiring code for more information. Make sure all conduit connectors
are screwed in tight and that they are not coming in contact with any bare conductors.
Strain relief should be installed to the enclosure to prevent any mechanical stress from being
transmitted to terminals and internal connections.
We recommend using BELDEN 9841 for communications. This wire has 120 ohms input
impendence, which will eliminate RS-485 communication problems.
QEL warrantees and support only covers installation with proper cable. If in doubt, please
contact QEL support personnel.
4.4 Connectors
Make sure to observe wiring to the correct terminal blocks. Removable terminal blocks are
provided. Make sure there is no confusion about which terminal block to wire to.
Note: Incorrect wiring to any of the terminals of the Q4 Controller could cause
permanent damage to the unit, which is not covered by the warranty. Incorrect
wiring could also cause fire, electric shock, or bodily injury. Please observe the
polarity on all connections.
Warning: Disconnect the main supply when changing any of the wiring to the unit. Be
especially cautious when wiring high voltage to the relays. Do not touch
sensitive components on the circuit card to prevent static discharge damage to
the unit.
4.5 Power Supply Connection
The Q4 Controller power supply Voltage requirements are nominally 24VAC/DC.
NOTE: Q4-Controller II has full-wave rectifier and half-wave rectifier circuit on board for
flexibility. You will damage devices if you mix half wave and full wave rectifiers on the same AC
source. Use extreme caution when sharing a common AC source. Sharing a common DC source
is less problematic.
QEL supplies one standard transformer
 M-Transformer 120 to 24 VAC 200 VA [QEL SKU#: 6500-0024]

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4.6 RS-485 Installation
The RS-485 (EIA-485) standard specifies the electrical characteristics for a digital communication
link allowing communication between multiple devices on a single link. The RS-485 uses two
wires, A+ and B-, and works on the voltage difference between them. If the voltage difference is
positive, then that is a “1” if negative then that is a “0”.
Connections: Wire terminals A+ to A+ to A+ etc., and B- to B- to B- etc.
Terminator: Q4-Controller supplies two end-of-line resistor on the main board, one for sensor
RS-485 port, one for Modbus/BACnet port, they are chosen using a jumper at J3, J4.
 J3/4 1-2: Terminator Disabled/Off (Default)
 J3/4 2-3: Terminator Enabled/On
Factory default setting is disabled terminator.
Distances: The RS-485 standard allows up to 1300 meters (4000 feet) of line length. It is best to
avoid lines of this length if at all possible.
Stubs: Short lengths of cable from the main cable over to a device are called Stubs. When the
Baud rate (communication bit rate) is low – e.g. 2400 baud, then it is often possible to use short
lengths of a few inches without seriously impairing the signal integrity, especially when overall
distances are relatively short; however, this is taking a chance on garbling your signals and is not
recommended.
Shield Grounding: There are certain things to keep in mind for the shield.
 The shield must be grounded otherwise it can make the situation worse.
 Ground the shield at only one end to prevent ground loops.
 If you cut the cable then either ground each section of the shield at that point or connect
the shields together to ground back at an origin point.
RS-485 Driver Replacement: RS-485 lines in heavy industrial environments are sometimes
subjected to magnetic disturbances causing sufficient inducted power surges to damage the driver
integrated circuit (IC). The IC U5 and U6 have sockets on the circuit card for ease of replacement
in the field.
U5 U6: RS-485 TRANSCEIVER [QEL SKU#: 3200-0044]

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4.7 Sensor Port RS-485 and BAC-Box Installation
The TB8 can be programmable set to either work with BAC-Box which supports BACnet/IP
protocol, or work as Modbus RTU slave protocol, default is Modbus RTU protocol.
4.8 Buzzer, Strobe and Horn Outputs
The Q4 Controller supports strobe and horn outputs. Buzzer1 to buzzer 3 and strobe can be
programmed individually, horn output would be actuated if any of buzzers is/are actuated.
 Buzzer 1: Continuous, normally used to be high alarm buzzer
 Buzzer 2: Intermittent 50% duty cycle, normally used to be low alarm buzzer
 Buzzer 3: Double-tap Intermittent, normally used to be fault alarm buzzer
The strobe and horn outputs are 24 VDC transistor outputs
The maximum current is not more than 250mA.

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5. Function and Configuration
After the controller powers up, it will show no enabled inputs and outputs on the LCD display, as
no input or output is enabled in the factory defaults settings. You need to enter MENU to config
the Q4-Controller. The menu is password protected. Default password is 4321.
5.1 Miscellaneous
Setting Description
Password
:
Default password is 4321
Baud Rate:
Modbus RTU RS-485 Port:
 default baud rate is 19.2kbps, no parity
Sensor RS-485 Port:
 default baud rate is 4800bps
LCD
Bac
k
light
:
The LCD backlight can be set to
 Always Off
 Always On
 AUTO
In AUTO mode, the backlight will turn On for 10 seconds after any key has
been pressed
Default setting is AUTO mode
5.2 Relay Configurations
Relay1-4 configurations may be styled in two basic ways: Voting and Averaging. Each method
allows certain advantages and limitations. Common functions apply to both styles.
Common Functions Description
On Delay
:
Delay on Actuation (‘Delay on Make’). For each relay, a separate time
delay may be set up to 60 minutes before an alarm condition will cause
the relay to actuate
Default is 00 minutes
Off Dela
y
:
Delay on De-Actuation (‘Delay on Break’). For each relay, a separate time
delay may be set up to 60 minutes before a return to a non-alarming
signal condition will cause the relay to de-actuate
Default is 00 minutes
Normally
De-energized: Each relay may be individually set to be normally energized or normally
de-energized
Default is normally de-energized

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Latching:
Each relay may be set to latch in actuate status until acknowledged by a
front-panel action
Default is non-Latching
Style:
Normal Relay Style:
 Work as normal relay
Buzzer Style Relay:
 When the relay is used to control a buzzer or horn.
Working as a buzzer style will make the relay have the same
function as the buzzer. It will be switched off when performing the
Hush function
Default is Normal Relay Style
Ena
bled
Each relay may be individually set to be enabled or disabled. If it’s
disabled, the relay will always de-actuate no matter what the current gas
concentration
Default is Disabled
Fault Ac
tuat
i
on
When relay is set with Fault Actuation, the relay will be actuated when its
assigned sensors report any fault or offline
Default is Disabled
5.3 Voting Mode
Settings Description
Voting N
umber:
For a given list of sensors assigned to a relay actuation list, this number
indicates the minimum number of sensors which must pass or equal their
alarm “On” concentration before the relay will actuate
Default is 1
Assign Sensor:
Each relay may be assigned to any one or more of the enabled sensors or
AI (Analog Inputs)
On
Concentration
Reading:
Off Concentration
Reading:
If On Concentration is great than or equal to Off Concentration:
On Concentration: For each sensor or analog input assigned, set the
concentration at or above which the voting number will increase 1
Off Concentration: For each sensor or analog input assigned, set the
concentration at or below which the voting number will decrease 1
On
Con
ce
ntration
Reading:
Off Concentration
Reading:
If On Concentration is less than Off Concentration:
On Concentration: For each sensor or analog input assigned, set the
concentration below which the voting number will increase 1
Off Concentration: For each sensor or analog input assigned, set the
concentration above which the voting number will decrease 1

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5.4 Averaging Mode
When working in Averaging mode, the Voting mode is disabled, and the Voting Number is
forbidden automatically. Input values to “Average On”, “Average Off”.
If Average On is great than or equal to Average Off:
Settings Description
Average On
:
The gas concentration at or above which the average of all the sensors
assigned to this relay will cause the relay to actuate
Average
Off
:
The gas concentration at or below which the average of all the sensors
assigned to this relay will cause the relay to de-actuate
If Average On is less than Average Off:
Settings Description
Average
O
n
:
The gas concentration at or below which the average of all the sensors
assigned to this relay will cause the relay to actuate
Average
Off
:
The gas concentration at or above which the average of all the sensors
assigned to this relay will cause the relay to de-actuate
5.5 Inputs and Outputs Addressing
The term “sensor” used throughout means a digitally communicating sensor unless otherwise
stated.
The Q4 Controller can support up to 4 remote digital sensor inputs. 4 relay outputs, 3 buzzers
outputs, 1 strobe.
Acceptable addresses:
 Sensors are addressed to Sensor0 to Sensor3 or S0 to S3
 Relays are addressed to Relay1 to Relay4 or R1 to R4
 Buzzers are addressed to Buzzer1 to Buzzer 3 or BZ1 to BZ3
 Strobe is addressed to Strobe or ST

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6. Keypad and Menu
All database programming and configuration can be done through the front panel keypad,
although this is practical only for short programs and program modifications. The following
discussion and flow charts demonstrate the operation and menu pathways. In practice you will
find that it is easier to use the keypad and menus than it is to read the reference descriptions. The
menus provide prompting at each stage, and only a few rules need be memorized.
Sensor TX, RX: When the digital sensors are connected to the Q4 Controller, the traffic of the
communication can be monitored visually through the two RS-485 indicators. One is RX LED,
which indicates the data stream replied from digital sensor and received in the Q4 Controller. The
other is TX LED, which indicates the data stream sent out of the Q4 Controller to the digital
sensors.
Master TX, RX: When the Q4 Controller is connected to a Modbus device or BAC-Box, the
traffic of the communication can be monitored visually through the two RS-485 indicators.
Note: If the TX LED or the RX LED is always ON, that means the communication
has a problem. See Troubleshooting for RS-485.
Relay1-4 LED: Indicate the status of each relay. When the relay is actuated/closed, the Relay
LED is ON. When the relay is de-actuated/open, the relay LED is OFF.
Note: If you set the relay to be Normally Energized Relay (Fail Safe), the relay LED
will turn ON at non-alarm state and turn OFF at alarm state, because the
LED reflects the relay coil status.

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6.1 Hold Mode:
Press key [Up] or [Down] to scroll through the display items, at the same time the display goes to
“Hold Mode” with display “*” at that row end. The Hold Mode will stop at that point for 3
minutes.
In Hold Mode, press key [Enter], you can check the selected channel running status and its config
settings in the controller.
Press key [Exit] exits the hold mode to auto scroll mode (monitoring mode).
6.2 Menu Mode:
Press key [Enter] during monitoring mode but not “Hold Mode”, to enter to Menu Mode.
Main Menu is password protected. Default password is 4321.
 Menu “Enter Main Menu”
o Once the password is accepted, you will enter to main menu tree
 Menu “Reset Latched”
o To acknowledge a latched condition. All latched relays for which the alarm
condition has been removed will reset. If the alarm condition (e.g., high gas
concentration) is still present the relay(s) will not reset.
 Menu “Reset Password”
o If you forgot the main menu password, you could reset the menu password to
default password “4321” by entering a correct active code. For the active code,
contact QEL.
 Menu “Check Database”
o You can always to verify the input and output config database integrity. For
example, if you accidently assigned a non-existed input (disabled input) to an
output, it would show a warning here.
 Menu “Unhush Buzzers”
o Remove Hush status from hushed outputs, the output will be alarmed again after
On Delay minutes.
MENU
> 1. ENTER MAIN MENU
2. RESET LATCHED
3. RESET PASSWORD
4. CHECK DATABASE
5. UNHUSH BUZZERS

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6.3 Menu “System Setting”
The Menu system setup contains general settings for monitor operations, communications.
Settings Description
Backlight:
Can be set to “Always ON”, “Always OFF”, “AUTO”
Default setting is AUTO mode
Modbus
Address
:
The slave device address in Modbus RTU protocol
Default is 3
M
odbus B
aud
R
ate
:
Baud rate for Modbus port
Default is 19200bps
Mod
bus Parity:
Parity bit for Modbus port
Default is no parity
Change Password
:
The new password can be any combination of up to four digits
Default password is 4321
Key Beeper
:
Beeping or not when the keypad is pressed
Default is ON
Stro
be Out
:
When the strobe is actuated, it can be set with either 100% duty cycle ON
or 50% duty cycle ON, so the strobe can be flashed by the strobe relay ON
and OFF at 50% duty cycle
Default is 100% duty ON
Broadcast QRP
:
Broadcast running status to remote display panel
Default is OFF

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6.4 Menu “Zero CAL”
All QEL digital sensors can be calibrated at the sensor side by one-person operation. Q4
Controller provides Remote Zeroing and Span Calibration functions for these sensors which
location is not accessible, so the remote calibration is a choice. Remote Zeroing Calibration is also
very convenient to zeroing a drifted digital sensor remotely.
Note: Please check digital sensor specification, not every QEL digital sensor
supports remote calibration commands.
Only enabled sensor can be remote calibrated.
Procedure:
 Select a Sensor and then press [Enter] button
 The LCD will display current reading of the sensor and inquire if “Zeroing” now?
 Apply zero gas to the sensor and wait until the reading is stable
 Press [Enter] to Zero the sensor
 If no error happens, it will display “Accepted” that means the calibration is successful and
the calibration information is accepted. Otherwise, it will display error information
6.5 Menu “Span Calibration”
Procedure:
 Select a Sensor and then press [Enter] button
 The LCD will display current reading of the sensor and inquire if “Span CAL”?
 Apply calibration gas which concentration is defined at sensor side to the sensor head and
wait until the reading is stable
 Press [Enter] to Span Calibration
 If no error happens, it will display “Accepted” that means the calibration is successful and
the calibration information is accepted. Otherwise, it will display error information

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6.6 Menu “Sensor Setting”
For digital sensor 0 to sensor 3 configuration
To assign a sensor input to any of relays, buzzers, and strobe, the sensor must already have been
enabled in the sensor settings.
Only the enabled sensors will be polled and monitored by the controller. The sensor’s gas type and
measurement unit will be read out of each enabled sensor.
Settings Description
Enable
:
The Q4 Controller must be told that a sensor is attached to the control
system
6.7 Menu “Relay 1 - 4”
For on-board Relay1 to Relay4 configuration
Settings Description
Enable
:
The Controller must be told which relays are active
Work style
:
Normal Relay Style or Buzzer Relay Style
Nor
mally Energiz
e
d
Normally De-Energized or Normally Energized
Latche
d
See relay configuration in 5.2
Voting Mod
e
:
See relay configuration in 5.2
Averaging Mode:
See relay configuration in 5.2
On Delay
(Minutes):
See relay configuration in 5.2
Of
f D
elay
(Minute
s
)
:
See relay configuration in 5.2
Fault Ac
turation:
See relay configuration in 5.2