ICT PRT-PSU-DIN-2A User manual

PRT-PSU-DIN-2A
Protege DIN Rail 2A Intelligent Power Supply
Installation Manual

The specifications and descriptions of products and services contained in this document were correct at the
time of printing. Integrated Control Technology Limited reserves the right to change specifications or withdraw
products without notice. No part of this document may be reproduced, photocopied, or transmitted in any form
or by any means (electronic or mechanical), for any purpose, without the express written permission of
Integrated Control Technology Limited. Designed and manufactured by Integrated Control Technology Limited,
Protege® and the Protege® Logo are registered trademarks of Integrated Control Technology Limited. All other
brand or product names are trademarks or registered trademarks of their respective holders.
Copyright © Integrated Control Technology Limited 2003-2021. All rights reserved.
Last Published: 30-Apr-21 3:50 PM
PRT-PSU-DIN-2A | Protege DIN Rail 2A Intelligent Power Supply | Installation Manual 2

Contents
Introduction 5
Installation Requirements 6
Grounding Requirements 7
Safety Grounding 7
Earth Ground Connection 7
Mounting 9
Removal 9
Cabinet Tamper Switch 9
Vibration Sensor 10
Connection 10
Modes of Operation 11
Installation Procedure 11
Wiring Diagram 13
AC Power Supply 14
Backup Battery 15
Backup Battery Thresholds 16
Encrypted Module Network 17
Module Wiring 18
End of Line (EOL) Resistors 18
Output Load Connection 19
Output Current Influence on Output Load Operation 19
Core Temperature on Output Load Operation 19
Inputs 21
Trouble Inputs 21
Outputs 22
Online Mode 22
Programmable Outputs 22
Offline Mode 22
AC Fail Status Output 22
Battery Fail Status Output 23
Intelligent Monitoring 24
Monitoring Setup 24
Address Configuration 25
LED Indicators 26
PRT-PSU-DIN-2A | Protege DIN Rail 2A Intelligent Power Supply | Installation Manual 3

Status Indicator 26
Fault Indicator 26
Power Indicator 26
V1 Output/V2 Output Indicators 26
Battery Indicator 27
Temp Indicator 27
Over Current Indicator 27
Error Code Indication 28
Error Code Display 28
Mechanical Diagram 29
Mechanical Layout 30
Technical Specifications 31
Maximum Total Output Current: UL and ULC Installations 32
New Zealand and Australia 33
European Standards 34
UL and ULC Installation Requirements 36
UL/ULC Installation Cabinet Options 36
ULC Compliance Requirements 36
CAN/ULC-S304 36
CAN/ULC-S319 39
CAN/ULC-S559 40
UL Compliance Requirements 44
UL1610 44
UL294 45
FCC Compliance Statements 47
Industry Canada Statement 48
Disclaimer and Warranty 49
PRT-PSU-DIN-2A | Protege DIN Rail 2A Intelligent Power Supply | Installation Manual 4

Introduction
The Protege DIN Rail 2A Intelligent Power Supply provides 12VDC power suited to powering security, access
control or automation devices along with large numbers of Protege network powered modules. The power
supply allows for simple and powerful monitoring of supply currents and voltages.
Flexible module network architecture allows large numbers of modules to be connected to the RS-485 module
network. Up to 250 modules can be connected to the Protege system in any combination to the network, over a
distance of up to 900M (3000ft). Further span can be achieved with the use of a network repeater module.
The current features of the power supply include:
⦁Industry standard DIN rail mounting
⦁Online and remote upgradeable firmware
⦁Secure encrypted RS-485 module communications
PRT-PSU-DIN-2A | Protege DIN Rail 2A Intelligent Power Supply | Installation Manual 5

Installation Requirements
This equipment is to be installed in accordance with:
⦁The product installation instructions
⦁UL 681 - Installation and Classification of Burglar and Holdup Systems
⦁UL 827 - Central-Station Alarm Services
⦁CAN/ULC-S301, Central and Monitoring Station Burglar Alarm Systems
⦁CAN/ULC-S302, Installation and Classification of Burglar Alarm Systems for Financial and Commercial
Premises, Safes and Vaults
⦁CAN/ULC-S561, Installation and Services for Fire Signal Receiving Centres and Systems
⦁The National Electrical Code, ANSI/NFPA 70
⦁The Canadian Electrical Code, Part I, CSA C22.1
⦁AS/NZS 2201.1 Intruder Alarm Systems
⦁The Local Authority Having Jurisdiction (AHJ)
PRT-PSU-DIN-2A | Protege DIN Rail 2A Intelligent Power Supply | Installation Manual 6

Grounding Requirements
An effectively grounded product is one that is intentionally connected to earth ground through a ground
connection or connections of sufficiently low impedance and having sufficient current-carrying capacity to
prevent elevated voltages which may result in undue hazard to connected equipment or to persons.
Grounding of the Protege system is done for three basic reasons:
1. Safety
2. Component protection
3. Noise reduction
Safety Grounding
The object of safety grounding is to ensure that all metalwork is at the same ground (or earth) potential.
Impedance between the Protege system and the building scheme ground must conform to the requirements of
national and local industrial safety regulations or electrical codes. These will vary based on country, type of
distribution system and other factors. The integrity of all ground connections should be checked periodically.
General safety dictates that all metal parts are connected to earth with separate copper wire or wires of the
appropriate gauge.
Earth Ground Connection
The DIN rail enclosure and the DIN rail modules must be grounded to a suitable single-point earth ground
connection in the installation. A minimum 14AWG solid copper wire (or thicker, in accordance with local
authorities) shall be used from the Protege system's earth connection points.
The DIN rail enclosure includes an earth ground single-point link connection via the metallic enclosure. This
single-point link is the Protege system's earth ground. All modules that have earth ground connections and that
are installed in the same enclosure shall be connected to this single point. A single-point earth ground
connection avoids the creation of ground loops in the system and provides a single reference point to earth
ground.
Reader Expander
Input Expander
Output Expander
Controller
Dialer’s Earth
Ground Connection
Power Supply
V-
DIN Rail Ground Connections (one or more cabinets installed in the same room)
DIN Rail Enclosure Additional DIN Rail Enclosure(s)
Module Network
(RS-485 N+, N-, NA, NB)
AC Mains Wiring
Earth Ground
Link Connection
PRT-PSU-DIN-2A | Protege DIN Rail 2A Intelligent Power Supply | Installation Manual 7

Sector or Building #2Sector or Building #1 Sector or Building #3
Input Expander
Input Expander
Input Expander
Reader Expander
Input Expander
Output Expander
Power Supply
Controller
Dialer’s Earth
Ground Connection
V-
Earth Ground
Link Connection
DIN Rail Enclosure DIN Rail Enclosure DIN Rail Enclosure
Module Network (RS-485 N+, N-, NA and NB)
DIN Rail Ground Connections (multiple cabinets in different rooms, sectors, or buildings)
Note that the DIN rail enclosure earth terminal is connected to the power supply V- terminal.
There must be only one single earth grounding point per system.
PRT-PSU-DIN-2A | Protege DIN Rail 2A Intelligent Power Supply | Installation Manual 8

Mounting
Protege DIN rail modules are designed to mount on standard DIN rail either in dedicated DIN cabinets or on
generic DIN rail mounting strip.
When installing a DIN rail module, ensure that there is adequate clearance around all sides of the device and
that air flow to the vents of the unit is not restricted. It is recommended that you install the module in a location
that will facilitate easy access for wiring. It is also recommended that the module is installed in an electrical
room, communication equipment room, secure cabinet, or in an accessible area of the ceiling.
1. Position the DIN rail module with the labeling in the correct orientation.
2. Hook the mounting tabs (opposite the tab clip) under the edge of the DIN rail.
3. Push the DIN rail module against the mount until the tab clips over the rail.
Removal
A Protege DIN rail module can be removed from the DIN rail mount using the following steps:
1. Insert a flat blade screwdriver into the hole in the module tab clip.
2. Lever the tab outwards and rotate the unit off the DIN rail mount.
Cabinet Tamper Switch
The enclosure tamper input notifies the monitoring station or remote computer that the enclosure has been
opened. The tamper input switch and steel bracket provided should be correctly mounted into the enclosure
and secured to the wall. The tamper input switch terminals are connected in series with the tamper input (TP)
and the V- terminal of the power supply (or any other system input designated and programmed as a 24HR
tamper alarm input). When the tamper input is triggered, trouble input AExxx:01 on the power supply will be
opened.
Tamper Input Connection:
Bracket
C
TAMPER
NCNOCTP
BATT OK AC OK
FORM B CONTACTS (50mA max)
V2+ V- V1+ V-
12VDC OUTPUT 2 12VDC OUTPUT 1
Tamper Switch
PRT-PSU-DIN-2A | Protege DIN Rail 2A Intelligent Power Supply | Installation Manual 9

Vibration Sensor
Protection is provided by a DSC SS-102 Shockgard seismic vibration sensor mounted within the system
enclosure.
Connection
⦁Terminals 1(V+) and 2(V-).12V power connection, reverse polarity protected.
⦁Terminals 3 and 4. N.C. alarm output contacts, with built in 10 ohm resistor in series.
1. 12V (Screw terminal 1).
2. 0V (Screw terminal 2).
3. Alarm circuit. N/C contact. (Screw terminals 3&4).
PRT-PSU-DIN-2A | Protege DIN Rail 2A Intelligent Power Supply | Installation Manual 10

4. Latch terminal (12V SET + SW +). Not used.
5. Anti-tamper. Terminals not used.
6. Not used. Off.
7. Sensitivity selection level (Low/High). Switch 5 set to on. High selected.
8. Latch reset switch. Not used. Off.
9. Pulse count selection switches. Not used. Off.
10. Sensitivity adjustment potentiometer.
Set pointer marker to point at the corner opposite the MIN marker.
11. Case anti-tamper switch. Not used.
Modes of Operation
When using the sensor in momentary mode, it will be necessary to connect using a 4 core cable.
⦁The N.C. alarm contacts are non-latching.
⦁Upon alarm activation the alarm contacts will open circuit momentarily for a minimum time of 1 second
before automatically resetting.
⦁The LED will illuminate when the alarm contacts are open circuit in response to an input signal.
⦁LED indication: During the sensitivity test procedure indication of the green LED denotes alarm and relay
operation. Indication of the red LED denotes vibration detected (pulse) but insufficient to create alarm
conditions.
⦁Dual stage linear sensitivity: The detector permits the installer a greater threshold of sensitivity adjustment
by adjustment of the potentiometer through either a low level or high level adjustment.
⦁When DIP Switch 5 is in the ON position the sensitivity potentiometer allows adjustment in the high
sensitivity area and when in the OFF position allows adjustment in the low sensitivity area.
Installation Procedure
1. Select the intended position for installation, ideally positioned horizontally in the vertical center of the
enclosure, 50mm to the right of the large opening.
Ensure the surface is clean and clear of any irregularities.
2. Remove the sensor cover by unscrewing the single captive screw until the cover can easily be removed
from the base.
3. Carefully lift the printed circuit board from the base.
4. Position the base in the mounting position and mark the desired fixing holes (3.1mm drill).
5. If rear cable entry is required, cables should be threaded through the rear of the base.
6. Fix the base in position using M3 pan head machine screws to the captive nuts provided in the enclosure, or
with nuts and washers if located in an alternative position.
Take care not to let the screw protrude further than the nut height on the rear of the enclosure.
7. Carefully push the printed circuit board onto the base.
8. Make the electrical connections to the Shockgard SS-102, wired in series with the enclosure tamper switch
24HR monitor.
9. If side cable entry is being used, remove the appropriate knockout from the cover and insert a grommet.
10. Setting up and adjustment:
-With the unit in momentary operation (See Modes of Operation: Dual stage linear sensitivity above),
use a terminal screwdriver to turn the sensitivity control fully clockwise to maximum (Position 6).
PRT-PSU-DIN-2A | Protege DIN Rail 2A Intelligent Power Supply | Installation Manual 11

-Using a suitable implement, bang or tap the protected area, observing the LED response.
-Reduce the sensitivity by a small amount (turn sensitivity control anti-clockwise) and bang or tap the
protected area.
-Repeat this process until the unit only just responds to the desired impact.
11. Replace the sensor cover, tighten the fixing screw and check its response to the desired impact.
PRT-PSU-DIN-2A | Protege DIN Rail 2A Intelligent Power Supply | Installation Manual 12

Wiring Diagram
Wiring
AUXWIRING:Min22AWGMax16AWG.(Depends on
length and Current consumption). For wire/cablesize,
a maximum of 5%voltage drop at the terminals of
the powered device has to be observed.
MODULE NETWORK WIRING:Recommended Belden
9842 or equivalent. (24AWG twisted pair with
characteristic impedanceof 120ohmor CAT5e/ CAT6
arealso supported for DataTransmission when using
ground in the same cable. Do not use extra wires to
power devices.) max 900m(3000ft).
Battery Characteristics
BatteryType to be used:VRLA (valve regulated sealed
lead acid type rechargeablebattery)
Recommended Battery:Yuasa model:
NP7-12, 12V,7Ah (www.yuasabatteries.com)
Nominal Voltage:12V
Nominal Capacity:7Ah
BatteryMaintenance:It is recommended to replace
thebattery every3-5 years.
NC C N0 C TP
V+ V- Z1 C Z2 Z3 C Z4
Input Expander
2A Power Supply
ACFail Connection
Ensure common ground between devices
NC C NO C TP
V+ V- Z1 C Z2 Z3 C Z4
BatteryFail Connection
Ensure common ground between devices
Input Expander
2A Power Supply
Until connection to any System Controller is established, the outputs operate in
Offline Mode. Whileinoffline mode, the 2 outputs function as status outputs.
AC Fail Status Output:
The output relay contacts
disconnect (Normally Open)
when AC power is removed
and unit remains running on
backup battery power. Upon
restoring AC power, the output
relay will revert back to its
default state
(Normally Closed).
Outputs - Offline Mode
BatteryFail Status Output:
The output relay contacts
connects (Normally Closed)
when either the backup battery
has been disconnected, or
when the Power Supply is
running on backup battery
power without AC power and
the backup battery voltage
drops below 11.75V. Upon
reconnecting a backup battery
with a voltage greater than
12.5V, the output relay will
revert back to its default state
(Normally Open).
The outputs are shown to be connected to a DIN Rail 16 Input Expander
so the statuses can be externally monitored.
The address of the 2A Intelligent Power Supply is
configured via programming and will require reference
to themoduleserial number.Theserial number can be
found on the identification sticker on the side of the
module.
Pleaserefer the SystemController Installation Manual for
address programming details.
LED Description
Power Green Correct moduleinput voltage applied.
Off Incorrect module input voltage applied.
Status
Modulesuccessfully registered with controller.
Moduleattempting registration with controller
Modulecommunicationactivity.
Fault Red
ON and OFF rapidlywith a delay of 1.5 second between each display cycle.
Number of Flashes Error Description
1 Unknown Error Code
2 FirmwareVersion
3 Address Too High
4 Address inUse
5 Controller Secured
6 Serial Number Fault
7 Locked Device
For further details, please refer to the Error Code Display section inthe Installation Manual.
V1 Out /
V2Out
Green 12VDC output operating OK.
Off 12VDC output failure.
Battery Off Backup batteryis disconnected/failedits dynamic batterytest.
Green Last backup battery dynamic test successful.
Temp
Red Core temperature exceeded. Over Temp Shutdown Activated.
Core temperature within 15°C of Over Temp Shutdown.
Off Core temperature OK.
Over
Current
Red Output current exceeded. Over Current ShutdownActivated.
Off Maximum output current not exceeded.
Outputs - Online Mode
Upon successfully completing the initial
registration with any System Controller, the
outputs operate in Online Mode. Whilein
onlinemode, the2 outputs function as PGMs
and can be used to activate bell sirens,
lighting circuits, door locks, relay accessory
products and other automation points.
NCCNCCTP
1K5 OHM
LED
Output Connection
V2+ V- V1+ V-
CAUTION:INCORRECT
WIRINGMAY RESULT
INDAMAGETOTHE
UNIT
Devices connected to other Modules
Inductive devices (such as electric locking
devices, solenoids, etc) connected to other
modules requirea 1N4007 diode to be fitted as
close to the deviceas possible.
+
-
1N4007Diode
12VDCElectric
Locking Device
NAN+ N- NB
SystemController
The 2A Intelligent Power Supply
should be supplied by adedicated
electrical power sourcerated for a
minimum10Amp load and have a
dedicated circuit breaker. Do not use
a switch controlled breaker or
switched electrical point to supply
power.
Next
modules
on network
NAN+ N- NB
White
Blue
Black
Red
Gel Cell
Backup
Battery
(Min7Ah)
Tamper
Switch
Bracket
Gel Cell
Backup
Battery
(Min7Ah)
Transformer
secondary16
to 16.5VAC,
50-60Hz40VA
and greater
ULC-LA AC
Indicator*
Inline
5A 3AG
fuseholder*
+
2APowerSupply
PRT-PSU-DIN-2A | Protege DIN Rail 2A Intelligent Power Supply | Installation Manual 13

AC Power Supply
The power supply should be supplied by a dedicated electrical power source rated for a minimum 10A load and
have a dedicated circuit breaker. Do not use a switch controlled breaker or a switched electrical point to supply
electrical power. Connect the primary of a 16 to 16.5 VAC, 50-60Hz, 40VA or greater transformer to the
electrical circuit and run the secondary to the AC input on the power supply terminals.
AC Power Connection
Transformer
Mains Input
AC AC
B+
B-
Specific regional regulations may allow the transformer to be mounted inside the cabinet enclosure. In this case
wire the electrical circuit to the electrical termination point inside the cabinet enclosure and the secondary wires
of the transformer to the AC input on the power supply. The earth wire shall be routed to the V- terminal on the
power supply when using an internal transformer.
Warning:
⦁This installation should be made by qualified service personnel and should conform to all local codes.
⦁Termination of wiring to the power supply while power is applied or the battery is connected may cause
serious damage to the power supply and will VOID ALL WARRANTIES OR GUARANTEES. Power the unit
only after all wiring, configuration and jumper settings are completed.
⦁Extra care must be taken when wiring the AC inputs. Improper connection will cause permanent damage
to the power supply.
PRT-PSU-DIN-2A | Protege DIN Rail 2A Intelligent Power Supply | Installation Manual 14

Backup Battery
A battery backup must be connected to the module network to provide a monitored supply. The battery plays
an important role in power conditioning and provides a continuous source of power in the event of a power
outage.
It is recommended that a minimum of a 7Ah battery is used as the main backup battery.
From the accessory bag provided:
1. Connect the red and black battery termination wires to the B+ and B- plugs.
2. Connect the spade terminals to the battery as shown below.
Connection of the battery in reverse will not damage the power supply, but will cause the battery circuit to
disconnect until correct connection is made.
P
UL
ULC
Please refer to the section on Maximum Total Output Current : UL and ULC Installations for
specific requirements on complying with UL and ULC installation standards.
Gel Cell Backup Battery
AC AC
B+
B-
+
-
Warning:
⦁Only attach standard lead acid batteries.
⦁Do not connect the battery wires or B+ and B- plugs of the module to any other ancillary device (siren,
lock, mag clamp, etc.).
⦁An incorrect connection may cause erroneous faults or serious damage to the module and will VOID ALL
WARRANTIES OR GUARANTEES.
The battery test procedure uses a special algorithm to prevent deep discharge and increase battery
endurance. A dynamic battery test is performed every ten minutes when mains power is present, and a battery
condition alarm will be generated if the battery is either disconnected or shows poor capacity. Battery fault
conditions will activate the battery trouble input associated with the address assigned to the power supply.
In addition to the dynamic battery test procedure, the power supply performs a battery presence test every 60
seconds, which determines whether the presence of a backup battery is detected. Similarly, if no backup
battery is detected a battery condition alarm will be generated and the battery trouble input associated with
the address assigned to the power supply will also be activated.
To comply with EN 50131-1 only one battery can be connected and monitored per system. If more capacity is
required a single larger battery must be used.
PRT-PSU-DIN-2A | Protege DIN Rail 2A Intelligent Power Supply | Installation Manual 15

Backup Battery Thresholds
The battery disconnection threshold is 8V. Upon reconnection of mains power the power supply automatically
detects the backup battery and begins controlled charging at 500mA (typical).
PRT-PSU-DIN-2A | Protege DIN Rail 2A Intelligent Power Supply | Installation Manual 16

Encrypted Module Network
The power supply incorporates encrypted RS-485 communications technology. Network power is supplied by
the N+ and N- terminals. Connection of the communications and network power should be performed according
to the diagram shown. It is important that the N+ network communications power be 12VDC supplied from an
independent battery backed power supply unit or a networked module capable of supplying the required
voltage to all devices on the RS-485 network.
NAN+ N- NB
Network communications input
from the Controller or previous
module
Always connect the power supply NA and NB terminals to the NA and NB terminals of the communication
network.
Shield is frame
grounded at
one point
Shields are
connected together
and Isolated
Shielded Cable
Network Module
Shielded Cable
Shield not
connected
NAN+ N- NB NAN+ N- NB
NAN+ N- NB
V+ V-
Power Supply Controller
The diagram above shows how a single power supply can be connected to supply the module network. This
connection is suitable for smaller systems, provided that the following values are all lower than or equal to the
values outlined in the Technical Specifications section of this manual:
⦁Maximum total output current,
⦁AUX DC output current,
⦁Controller bell DC output current, and
⦁Total combined current
PRT-PSU-DIN-2A | Protege DIN Rail 2A Intelligent Power Supply | Installation Manual 17

If any of these currents are exceeded, a separate power supply must be used, as shown below.
Shielded Cable
Network Module
Shielded Cable
Module Network
NAN+ N- NB NAN+ N- NB
NAN+ N- NB
V+ V-
Power Supply 1 Controller
NAN+ N- NB
Power Supply 2
V+ V-
The 12V N+ and N- communication input must be supplied from only one point. Connections from more than
one 12V supply may cause failure or damage to the unit or the device supplying network power.
Module Wiring
The recommended module network wiring specifications are:
⦁Belden 9842 or equivalent
⦁24AWG twisted pair with characteristic impedance of 120 ohm
⦁Maximum total length of cable is 900m (3000ft)
⦁CAT5e / CAT6 are also supported for data transmission when using ground in the same cable (to a
maximum length of 100m (328ft))
Warning: Unused wires in the cable must not be used to carry power to other devices.
End of Line (EOL) Resistors
The 330 ohm EOL (End of Line) resistor provided in the accessory bag must be inserted between the NA and
NB terminals of the first and last modules on the RS-485 network. These are the modules physically located at
the ends of the RS-485 network cabling.
330R 330R
First Module on RS-485 Network Last Module on RS-485 Network
To
Next
Module
From
Previous
Module
NAN+ N- NB
NAN+ N- NB
PRT-PSU-DIN-2A | Protege DIN Rail 2A Intelligent Power Supply | Installation Manual 18

Output Load Connection
The power supply provides two sets of 12VDC output terminals, V1+ and V2+. Both V1+ and V2+ outputs are
individually fused.
A maximum current output of 1.0 amps at 12VDC can be provided across each output at any one time. However,
if a single current output of 2.0 amps is required, then both outputs need to be connected together in parallel.
When any inductive load, including electric locking devices, is powered (directly or indirectly) by the power
supply a reverse EMF protection diode must be placed across the positive (V1+ or V2+) and negative (V-)
terminals at the device.
Example Indirect Output Load Connection Example Direct Output Load Connection
V+
V- NO C NC NO C NC
NAN+ N- NB
12 VDC IN RS485 NETWORK
12 VDC OUT RELAY 3 RELAY 4
+
-
IN4007 Diode
V2+ V- V1+ V-
12VDC OUTPUT 2 12VDC OUTPUT 1
Power Supply Other Module
12VDC Electric
Locking Device
12VDC Electric
Locking Device
+
-
IN4007 Diode
V2+ V- V1+ V-
12VDC OUTPUT 2 12VDC OUTPUT 1
Note: The 1N4007 diode shown must be installed across the + and – terminals of any inductive load such as
electric locks, magnetic or motorized devices.
Output Current Influence on Output Load Operation
The table below helps illustrate how the total output current drawn from the power supply module influences
the operation of V1 and V2 outputs.
Output Load Current
Output Load Operation Status 0 - 2.0A 2.0 - 2.5A 2.5A - Short Circuit
Outputs Enabled (Mains Power)
Outputs Supplied by Battery
Output Over-Current Failure Trouble Input Activated
Over-Current Output Shutdown Activated
Core Temperature on Output Load Operation
The table below helps illustrate how the core temperature of the power supply module influences the operation
of the V1 and V2 outputs.
PRT-PSU-DIN-2A | Protege DIN Rail 2A Intelligent Power Supply | Installation Manual 19

Core Temperature
Output Load Operation Status <70°C 70-80°C >80°C
Outputs Enabled (Mains Power)
Outputs Supplied by Battery
Output Over-Current Failure Trouble Input Activated
Over-Current Output Shutdown Activated
PRT-PSU-DIN-2A | Protege DIN Rail 2A Intelligent Power Supply | Installation Manual 20