Innovative Technology ICT22012-100, ICT22012-140, ICT22012-70, ICT22024-35, ICT22024-70 Instruction Manual

THEPOWEROFRELIABILITY

INNOVATIVE CIRCUIT TECHNOLOGY LTD.

855-080-005

ICT N+1 REDUNDANT SERIES

INSTRUCTION MANUAL

Incorrect wiring, such as reverse battery connection, may result in
serious damage to both the N+1 system and equipment connected to
the system.

Do not block any of the vents on the outside of the unit.

Servicing of the unit should be done by ICT.

Ensure that the two voltage selector switches are both set correctly and
to the same position. If the switches are incorrectly set it will result in
module failure.

The system must be operated from an outlet with a proper grounding
connection.

If replacing modules, disconnect power from any external source
including the AC cord and any connected batteries.

WARNING: High leakage current, use only cord set provided with this
equipment.

ICT N+1 REDUNDANT SERIES

SETUP SAFETY + WARNINGS

The ICT N+1 Redundant Series is a high reliablity, expandable DC power system. The system is designed with active current sharing technology to
distribute the load current among the modules, reducing stress on individual components and increasing reliability. Each module is equipped with a
high power shottky output diode for true redundancy.

This series comes standard with system monitoring functions through a D-Sub connector, with signals such as module ok, over temperature
warning, analog DC output current, fan failure, and AC fail. Battery backup terminals are provided for float charging an external lead acid battery and
providing battery revert capability.

These instructions should be read before using the product and it should be saved for future reference. A more detailed manual is available on
request from ICT.

For 120V operation, set both voltage selection switches to the
120V position. For 220V operation, set both to the 220V
position.

After the system has been mounted, connect the load to the
terminal block at the rear of the unit. If desired, connect a 12V
or 24V lead acid battery (matching the N+1 system voltage) to
the battery terminals for float charging.

A disconnect device must be provided for both the DC power
output circuit and the battery backup circuit if used. The
backup battery (if used) should be provided with an overcurrent
device suitable for the available short circuit current of the
batteries used.

Connect the AC power cord to the unit and then to the available
outlet. Alternate AC cord types are available.

Turn the power switch on the front of the unit to the on
position.

4

4

4

4

4

4

4

4

4

4

4

4

Input

Voltage

Range

Configs.

Output

Voltage

Output

Current

(Cont.)

Output

Current

(Peak)

Current

Limiting

Line

Regulation

Load

Regulation

Output
Ripple

(Max)

Efficiency

(Typical)

# of

Modules

N NM

N - Standard NM - with LCD Meter

105-130/

205-250 VAC

13.8 VDC

+/- 300 mV

34.0 Amps 70.0 Amps 80.0 Amps 2.20% 1.00% 40 mV RMS 79%

ICT22012-70

2

105-130/

205-250 VAC

13.8 VDC

+/- 300 mV

105.0 Amps 105.0 Amps 120.0 Amps 2.20% 1.00% 40 mV RMS 79%

ICT22012-100

3

105-130/

205-250 VAC

13.8 VDC

+/- 300 mV

83.0 Amps

(90A @ 240 VAC)

127.0 Amps 160.0 Amps 2.20% 1.00% 40 mV RMS 77%
(80% @ 240 VAC)

4

105-130/

205-250 VAC

27.6 VDC

+/- 600 mV

17.0 Amps 36.0 Amps 40.0 Amps 2.20% 1.00%

40 mV RMS 83%

ICT22024-35

2

105-130/

205-250 VAC

27.6 VDC

+/- 600 mV

34.0 Amps 54.0 Amps 60.0 Amps 2.20% 1.00%

40 mV RMS 83%

ICT22024-50

3

105-130/

205-250 VAC

27.6 VDC

+/- 600 mV

41.0 Amps

(51A @ 240 VAC)

56.0 Amps4 80.0 Amps 2.20% 1.00%

40 mV RMS 83%

(84% @ 240 VAC)

ICT22024-70

105-130/

205-250 VAC

13.8 VDC 34.0 Amps 35.0 Amps-- 36.0 Amps 2.20% 1.00% 35 mV RMS 80%

ICT12-30

105-130/

205-250 VAC

27.6 VDC 17.0 Amps 18.0 Amps-- 19.0 Amps

Redundant

Current

34.0 Amps

34.0 Amps

34.0 Amps

17.0 Amps

17.0 Amps

17.0 Amps

--

-- 2.20% 1.00% 40 mV RMS 80%

ICT24-17

Modules

All complete systems are CSA C22.2 No 107.1, UL 1012 Approved

& FCC class A Compliant

SPECIFICATIONS

ICT22012-140

LIMITED WARRANTY

INNOVATIVE CIRCUIT TECHNOLOGY LTD.

26921 GLOUCESTER WAY LANGLEY, BRITISH COLUMBIA, CANADA V4W 3Y3

T 604.856.6303 F 604.856.6365 www.ictcorporate.com

ICT Limited Warranty is only intended for the benefit of the original
Purchaser of this product. This Warranty is not transferable or
assignable without the prior written permission of ICT. ICTʼs sole
obligation and liability under this warranty is limited to either repairing
or replacing defective products at the sole discretion of ICT. When
repairing or replacing the products, ICT may use products or parts
that are new, equivalent to new or re-conditioned. Parts repaired or
replaced during the warranty period will be under warranty for the
remainder of the warranty period.

The warranty period on ICT products purchased new from ICT is two
years. The warranty period for a repaired product or part thereof is
ninety (90) days or the remainder of the unexpired term of the new
product warranty period, whichever is greater. Repair or
replacement of a defective product or part does not extend the
original warranty coverage period.

No claim will be accepted unless written notice of the claim is
received by ICT in accordance with ICTʼs Return Material
Authorization (RMA) procedure, as soon as reasonably possible
after the defect is discovered. A valid product serial number must be
provided with the RMA claim to prove eligibility. The RMA form is
available on the ICT website at
www.ict-power.com/support/warranty-repair/.

The Purchaser shall at their own risk and cost return the defective
product to ICTʼs factory or designated repair center once an RMA is
issued by ICT. Return of the products to the customer after repair is
completed shall be prepaid by ICT unless otherwise mutually agreed
between the parties. Products shipped to ICT which have incurred
freight damage will not be covered by this Warranty and any repairs
or replacement parts, components or products needed will be
invoiced in the full current price amount and returned freight collect
to Purchaser. It is the Purchaserʼs responsibility to check the
product upon receipt for any damage during shipping and to contact
the carrier or shipper regarding such damage. Product that is
returned as defective, which is determined to operate within
published specifications will be returned to the Purchaser freight
collect.

This Warranty will be void if the product has been subjected to
misuse, neglect, accident, exposure to environmental conditions not
conforming to the productsʼ limits of operation, improper installation
or maintenance, improper use of an electrical source, defects
caused by sharp items or by impact pressure, a force majeure event,
has been modified or repaired by anyone other than ICT or its
authorized representative, has been subjected to unreasonable
physical, thermal or electrical stress, improper maintenance, or
causes external to the unit including but not limited to general
environmental conditions such as rust, corrosive atmospheres,
sustained temperatures outside the specified operating range of the
equipment, exposure to power surges and/or electrical surges,
improper grounding, mould or dust, animal or insect damage, water
damage or immersion in liquid of any kind.

ICT does not control the installation and use of any ICT product.
Accordingly, it is understood this does not constitute a warranty of
performance or a warranty of fitness for a particular purpose.

STANDARD FEATURES AND OPTIONS (continued)

Input Fuse Protection protects against over current at the input
of each module and on the backplane.

13 12 11 10 9 8 7 6 5 4 3 2 1

25 24 23 22 21 20 19 18 17 16 15 14

STATUS

FUNCTION

+15V supply
AC Power Good Signal (5 VDC = good)
Not Connected
Fan Fail (5 VDC = ok, 0 VDC = fail)
Not Connected
System current (0 VDC to 5 VDC = 0A to maximum system current)
Module 1 check (5 VDC = good)
Module 2 check (5 VDC = good)
Module 3 check (5 VDC = good)
Module 4 check (5 VDC = good)
Not Connected
Over-temperature sense (5 VDC = fail)
System output voltage sense
Signal Ground

PIN

1
2
3
4
5
6
7
8

9
10
11
12
13

14-25

The N+1 is equipped with a 25 pin D-Sub female connector (behind
“STATUS CONNECTOR” panel on the rear of the unit) with the
following pinout:

The unit features protection in the event of faults, transients
and other abnormalities.

LED Status Display (Standard)

A green LED status indicator is provided in the top right to indicate
that there is a DC voltage present at the output terminals of the
power supply.

Protection Features (Standard)

A green LED is provided in the top left for indication of the presence
of AC voltage.

Two LED indicators are provided for each of the four internal
modules. A green LED will be lit to indicate that there is a voltage
present at the output of the module. A yellow LED will be lit if the
module voltage is not present, either due to a fault or absence of
the module.

Current Limit and Foldback protection are present on each module
to prevent the load from drawing current above the maximum
allowable value. If an excessive load is drawn the output voltage
will start to fold back, and in the case of a hard short the current
will be reduced as well.

Surge protection is provided on the backplane and each module to
protect against input voltage transients.

DESCRIPTION OF OPERATION

The N+1 redundant power system consists of a backplane and
up to 4 modules. Each module is a 400+ watt DC power
supply. They are highly efficient current mode power supplies
with electronic current and voltage foldback protection.

For true N+1 operation, each module includes a redundant
OR-ing diode. This diode ensures that no matter what type of
failure occurs in one of the power modules, it will not affect the
DC bus. Each one of these highly reliable power modules is
connected through the system backplane.

Through the backplane, each module is connected to create an
active load sharing network. This feature forces all of the
modules to share the load evenly.

ADJUSTMENT AND SERVICING

Remove the three screws located on the top of the system
cover using a Phillips screwdriver. Then loosen the four screws
on the sides of the case. You can now remove the lid.
Each module is secured with 3 screws. Remove the screws
using a Phillips screwdriver.
To remove a module, pull the module away from the backplane
until it is disconnected from the quick connector and then lift
the end up carefully.

STANDARD FEATURES AND OPTIONS

Battery Backup (Standard)

During normal operation, the power supply will provide power
to the output while float charging the battery that is connected
at the battery backup output. In the event that the AC power
source is interrupted, the battery will supply power to the load
through an isolation diode; however, the load voltage will be

0.4V lower than the battery voltage. The power resistors used
to float charge the battery limit the charging current to about 5
Amps. During battery operation the fans are thermally
controlled to conserve power.

Removal of Module

Installation of Module

To install a module, follow the steps to remove a module in
reverse. Pay special attention to the five spring clips in the metal
heat sink of the module. These should be tight and care should be
taken not to dislodge them.

Before opening the cover, be sure to turn off the unit and unplug
any power sources entering the unit. This includes both the AC
power souce and any battery connections. A full manual with
more detailed instructions is available on request.

An optional LCD display is available for the system. This display
shows the output voltage, current, and module status. A plug
symbol indicates that AC power is available, while a battery symbol
indicates that the unit is running on the backup batteries. The
display is backlit for better contrast in a wide range of ambient light
conditions.

LCD Display (M Option)

Protection Features (Continued)