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SECTION 4 | Parameter Setup
NOTE: Parameter “CHARGING PROFILE” will be required to be programmed to select the desired charging
prole for the Lithium Ion Battery from the following options:
• 1=3 Stage Type 1
• 2=3 Stage Type 2
• 3=2 Stage Type 1
• 4=2 Stage Type 2
• 5=2 Stage Type 3
[For details, please refer to parameter “CHARGING PROFILE” explained under Section 4.4.2.21]
4.4.2.22.3 Programming Steps for Parameter “BATTERY TYPE”
ð ð
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
Enter Key Enter Key
Any Operating Mode Screen from
Fig 3.1 to 3.5
[Above screen is Screen 1 of Fig 3.2(a)]
Password 8052
See Section 4.3.1
See Table 4.3, Parameter Setup
Screen No. 22 for
programmable range
S e l e c t G r o u p
* C H A R G E C U R V E
ð
S e l e c t P a r a m e t e r
C H A R G E C U R V E
* B U L K C U R R E N T
2 0 A
ð
S e l e c t P a r a m e t e r
C H A R G E C U R V E
* B A T T E R Y T Y P E
0 = L e a d A c i d
S e l e c t P a r a m e t e r
C H A R G E C U R V E
* B A T T E R Y T Y P E
0 = L e a d A c i d
Enter Key
Down Key x 21 times
P a s s w o r d k e y i n
0 0 0 0
ð
Enter Key
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 have very high inrush current.
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
may fail again within a short period of time and EVO will immediately revert back to “Inverting Mode” [say,
“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 9V or lower
for EVO-1212F/1212F-HW or 18V or lower for EVO-1224F/1224F-HW. 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 (say 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:
• Timer associated with parameter “SAFE CHARGING” [Section 4.4.2.23] is set to > 0 min, say “t” min
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