48 | SAMLEX AMERICA INC.
APPENDIX A
NOTE:
Parameter “CHARGING PROFILE” has been set at default option "0=3 Stage Adaptive" for Lead Acid Bat-
teries. This parameter will be required to be programmed to select the desired charging profile 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
[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”
Enter Key Enter Key Up Key x 21 times Enter Key
A N Y O P E R A T I N G
M O D E S C R E E N
ð
S E L E C T G R O U P
C H A R G E C U R V E
ð
B U L K C U R R E N T
4 0 A
ð
B A T T E R Y T Y P E
0 = L e a d A c i d
ð
K E Y I N P A S S WO R D
0 0 0 0
Password 8052
See Section 4.3.1
ð
B A T T E R Y T Y P E
0 = L e a d A c i d
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-2212/3012 or 18V or lower for EVO-2224/4024. 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
• Parameter “LV CUT OFF TIME” is set to 0 sec
[Section 4.4.2.11.2]
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]
SECTION 4 |
Parameter Setup
