Danfoss ICAD Mode D'emploi page 5

ENGLISH
Technical data
Input Data
Input voltage range:
22.5 - 30 V d.c
Current consumption:
No load/charging/maximum -
0.1 A/0.5 A/10.5 A
Switching threshold:
Ua< 22 V; dynamic
Uin- 1 V/0.1 s
Input fuse:
Internal, 15 A
Output Data – Normal Operation
Nominal output voltage:
24 V DC
Output voltage:
Correspond to Input voltage range
Output current:
10 A
Current limit:
None
Overload fuse:
Internal, 15 A
Output Data – At power failure
(buffer Mode)
Nominal output voltage:
24 V d.c
Output voltage:
27.9 V DC, maximum
Output current:
10 A
Current limit:
15 A
Overload fuse:
15 A, internal fuse
Charging
Charge characteristic curve
I/U characteristic curve
End-of-charge voltage
27 V
Charge current
400 mA
Time interval for check of battery
60 seconds
General
Nominal capacity:
1.3 Ah
Service life:
6 years at +20°C (68°F)
Ambient temperature:
Operation/storage:
0°C(32°F) to +50°C(122°F)/
0°C(32°F) to +40°C(104°F)
Enclosure:
IP 20 (~NEMA 1)
Terminals:
0.2 mm to 2.5 mm (25 AWG -14 AWG)
2 2
Digital Output relays:
30 V a.c/d.c. , Max. 1 A
Alarm Output
Bat.-Mode Output
Bat- Charge Output.
5
Installation
Mounting
ICAD-UPS is for DIN rail mounting and must
always be installed in an electrical panel.
See fig.2.
ICAD-UPS
When ICAD-UPS is fully charged it can
provide capacity according to fig. 3., at
power failure
From fig. 3: 10 A in 1.5 min
2 A in 20 min
Definition of Power failure
If the supply voltage drops more than 1 V
in a period of 0.1 seconds or falls below the
minimum threshold of 22 V, the ICAD-UPS
switches to buffer mode.
If the output voltage drops below 20.4 V in
buffer mode, this will be indicated by the
Alarm relay and Red LED.
If the output voltage drops to 19.2 V due to
a flat (low) battery module, the ICAD-UPS
will be shut down completely.
When the supply voltage is reapplied, the
ICAD-UPS automatically switches on again.
At power failure there are two different
ways to shut down the ICAD-UPS, when all
connected ICAD 600/900 has been driven
to the predefined condition (closed/open/
stay/go to specific opening degree).
This will save capacity and shorten the time
to fully recharge again, when power comes
back.
1. Remote shut down via digital input
R1 and R2. See fig. 6
When the connection between terminal
R1 and R2 is OFF (brakes) the ICAD-UPS
will unconditionally shut down, i.e. the
DC output will be forced to switch off,
independent of the current capacity of the
ICAD-UPS.
2. Time out [min] which can be adjusted
on ICAD-UPS. See fig 5
After power failure has taken place an
internal time-out timer is started in ICAD-
UPS.
With this timer the ICAD-UPS automatically
can shut down when a selected time has
elapsed. See fig. 5.
Possible time out time which can be
selected : 0.5, 1,2,3,5,10,15,20,30 [min].
Also infinite (no shut down due to time out)
can be selected.
Digital output relays and the LED on the
front of ICAD-UPS, can be used to indicate
the condition of the ICAD-UPS.
See fig. 4 for detailed information on digital
output relays.
DKRCI.PI.HV0.B3.52 / 520H0949
Overall general function
Alarm relay (terminal 11,12,13)
Battery fully discharged (red LED)
Battery quality check negative (red LED)
Bat-Mode relay (terminal 21,22,23)
Power failure (buffer mode) (yellow LED)
Bat-Charge relay (terminal 31,32,33)
Battery is charging (yellow LED flashing)
ICAD-UPS used together
with ICAD 600/900
See fig. 7 and fig. 8 for different
applications with ICAD-UPS, ICAD 600/900
and 24 V d.c. transformer.
The number of ICAD 600/900 to be
supported by ICAD-UPS must not exceed
10 A.
ICAD 600: 1.2 A
ICAD 900: 2.0 A
This means:
- max 8 pcs. of ICAD 600 connected to
1 pcs. ICAD-UPS or
- 5 pcs. of ICAD 900 connected to 1 pcs.
ICAD-UPS or
- A number of ICAD 600 and ICAD 900
which does not exceed 10 A. (See
example below)
In fig. 7, separate transformers are used for
both ICAD-UPS and all ICAD 600/900.
The ICAD-UPS will only load the 24 V d.c.
transformer with 0.5 A.
In fig 8, one common transformer is used
for both ICAD-UPS and all ICAD 600/900.
The 24 V d.c. transformer will be loaded
with the load of all ICAD 600 (1.2 A)/ICAD
900 (2.0 A) plus the load of ICAD-UPS (0.5
A).
Sizing of transformer when
one common transformer is used
Example
ICAD UPS : 0.5 A
ICAD 600 : 1.2 A
ICAD 900 : 2.0 A
E.g. 3 pcs. ICAD 600 and 2 pcs. of ICAD 900
means that the size of the d.c. transformer
is : 0.5 + (3 × 1.2) + (2 × 2.0) = 8.1 A
© Danfoss A/S (AC-SMC/MWA), 09-2011