Installation manual ESM-T/X-EV (24 A / 48 A / 72 A)
Page 3/20
SIMON RWA SYSTEME GmbH, Passau
ESM-T/X-EV with power supply
Description
Den .
Min.
Norm al
Max
Unit
Adjus ted nominal voltage
(I
L
= 300mA )
Output current (c ontinuous operation)
1
EV-24
I
out
8
A
EV-48
I
out
16
A
EV-72
I
out
24
A
Volt age stabilit y in s hort ti me
operation
2
U
Tol. K
-1,50
1,50
%
Output current (s hort ti me operation)
(over load durabilit y t < 3 min (ED30%)
EV-24
EV-48
I
Peak
48
A
EV-72
I
Peak
72
A
V
DC
I
Peak
24
A
24,25
24,30
24,35
Switching power supply
???
?????'??
N
(+)
L
(+)
PE
Netz / Mains
210 - 250 V AC
Versorgungseinheit
Supply unit
EIN
Power on
Ausgang
Output
SNT - 120
(-)
(-)
Monitor
24 V / 20 A (KB 24 A)
+
-
Mains input 230 V AC
Mains-
indication
Output for
load electronics
1
( ) This current applies to the complete system in continuous operation.
2
( ) This range of tolerance applies to the adjusted nominal output voltage and to the defined short time current.
The overload detection is provided by an electronic fuse in the SNT
Note!
It is not permitted to exceed the
max. total current (e. g. at the power
supply, EV-72=72 A). This would lead
to an automatic regulation by the
switching power supply, SNT (that
means emergency current mode).
The switching power supply, type SNT-120 serves as the main power source and also is responsible for the mains supply of the
control panel. SNT is resistant against permanent short circuit and permanent no-load operation. Cooling occurs exlusively in
a natural way by some louvers at the housing
The mains supply for the switching power
supply has to lie within the nominal voltage
range of 195 - 265 V AC
The mains fuse protection by the customer
occurs with 16 A (fuse characteristic C or
more delayed).
The mains connection cable cross section
must be at least 0,75 mm² for each switching
power supply
Every switching power supply is provided with a monitoring output. This signals a fault in
following cases:
- mains failure (undervoltage detection U < 195 V AC)
- short-circuit resp. overload at the SNT-output
- technical defect of the SNT
- inactivity of the SNT (no energy output possible)
In case of failure the emergency current mode of the system gets triggered by the control
electronics.
Output currents from 24 A can be
realized when connecting several
switching power supplies in parallel
(max. 3 = 72 A).
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®