Table of Contents
Advertisement
SECTION 4 |
4.4.2.22.3 Programming Steps for Parameter "BATTERY TYPE"
Any Operating Mode Screen from
Fig 3.1 to 3.8
E V O - 1 2 1 2 F
I n v e r t i n g
A C
o u t p u t :
1 2 0 . 0 V
< 0 . 1 0 A
6 0 . 0 0 H z
[Above screen is Screen 1 of Fig 3.2(a)]
4.4.2.23 SAFE CHARGING (Table 4.1, Parameter Setup Screen No. 23)
4.4.2.23.1 General Information
Programming parameter "SAFE CHARGING" is a Timer (0 to 300 min; Default: 0 min) that may be used for the
following operational conditions / requirements:
a) The unit is programmed to operate in Normal (Off-line) Mode (Parameter MODE set to "0= Normal" – See
Section 4.4.2.13) i.e. AC input power is the primary source of AC power and EVO's Inverter Section is the
backup source.
b) The AC load(s) that are fed with backup power from EVO
c) When AC input power is restored during "Battery low voltage!" fault condition (Section 7, Srl. 1 of Table 7.1),
EVO
will exit fault condition and change to "Charging Mode" (say, "Condition 1"). The AC input power
TM
may fail again within a short period of time and EVO
"Condition 2"). During "Condition 1", the battery voltage may not have risen appreciably higher than the
"BATT LOW VOLTAGE" threshold (Section 4.4.2.9). Hence, during "Condition 2", there would be MORE
likelihood that high inrush current from the AC load(s) would drag the battery voltage down to (i) 9V or
lower for EVO-1212F/ 1212F-HW/ 2212/ 2212E/ 3012/ 3012E or, (ii)18V or lower for EVO-1224F/ 1224F-HW/
2224/ 2224E/ 4024/ 4024E or, (iii) 36V or lower for EVO-4248SP. This may trigger "Battery ultra low volt!"
fault condition (Section 7, Srl. 2 of Table 7.1). It is, therefore, desirable that when AC input power is restored
during "Battery low voltage!" fault condition (Condition 1) and fails again (Condition 2), the AC load(s) should
NOT be transferred to the Inverter Section (under Condition 2) till the AC input power had been restored
(under Condition 1) for a minimum safe charging time period set through Timer "SAFE CHARGING" (Section
4.4.2.23).
4.4.2.23.2 Initial Settings:
•
As an example, assume that the timer associated with parameter "SAFE CHARGING" (Section 4.4.2.23) is set to
> the Default setting of 0 min, say "t" min
Parameter "LV CUT OFF TIME" (Section 4.4.2.11.2) is set to 0 sec to ensure that the unit does not shut down
•
completely if AC input is not restored before expiry of time set through programming parameter "LV CUT OFF
TIME" (Section 4.4.2.11)
74 | SAMLEX AMERICA INC.
Parameter Setup
Enter Key
S e l e c t
G r o u p
*
C H A R G E
C U R V E
ð
P a s s w o r d
k e y
0 0 0 0
Password 8052
See Section 4.3.1
Enter Key
S e l e c t
P a r a m e t e r
C H A R G E
ð
*
B U L K
C U R R E N T
2 0 A
Enter Key
S e l e c t
P a r a m e t e r
i n
C H A R G E
ð
*
B A T T E R Y
0 = L e a d
See Table 4.3, Parameter Setup
Screen No. 22 for
programmable options
have very high inrush current.
TM
will immediately revert back to "Inverting Mode" (say,
TM
Down Key x 21 times
S e l e c t
C U R V E
C H A R G E
ð
*
B A T T E R Y
0 = L e a d
C U R V E
T Y P E
A c i d
Enter Key
P a r a m e t e r
C U R V E
ð
T Y P E
A c i d
Advertisement
Table of Contents
