92
www.elspec-ltd.com | December 2014 | SMX-0609-0101
User Manual | EQ-ST | V15
T
HE
U
NIT
D
ISPLAYS
N
EGATIVE
A
CTIVE
P
OWER
Negative active energy indicates that the load supplies energy back to the network.
If the energy flows to the load, the connection of one or more of the CTs is reversed, or the set-up parameter of
CT polarity is not properly set.
To fix, either change CT polarity or repeat the installation procedure.
N
O
C
APACITORS
C
ONNECTED IN
A
UTOMATIC
M
ODE
(1)
In order to verify measurement readings using the LCM test refer to Page 60;
(2)
For Repeat Site Installations see Page 26;
(3)
To verify that you have reached the Target Power Factor see Page 70;
(4)
Verify that the current is not running a too low value, which may cause the single group to lead to
over-compensation;
(5)
If the STARTUP COMPENSATION MODE is set to KVAR THERESHOLD, you need to verify its value. If
it is set BY AN EXTERNAL SIGNAL verify that the 24VDC reaches the inhibit signal connector;
T
HE
C
ONTROLLER
D
OESN T
R
EAD
T
HE
C
ORRECT
V
OLTAGE
V
ALUES
Check Neutral connection from the system. If the system was designed to receive Neutral, it must be
connected. If not, a connection must be made from the ground to the terminal.
S
INGLE
C
APACITOR
G
ROUP
F
AILURE
(1)
Repeat Site Installation (Page 26);
(2)
Disconnect all the groups and check system current. If it is not zero, replace that switching module
to which the malfunctioning group is connected;
(3)
Review malfunctioning group data (see "Group Test Report" on Page 80);
(4)
If Error 5 is reported, replace the Switching Module (see more details below);
(5)
If Error 3 has been detected in three or more adjacent groups, for Switching M
on Page 17),
s below);
(6)
s fuse (see more details below);
G
ENERAL
E
RROR
M
ESSAGE
(1)
If the failure occurs only once, allow five minutes for the failure to correct itself or switch sys
supply voltage off and on;
(2)
If a blinking ERROR indication appears in the status line, press F2 (INFO or IN/OUT) to display full
error description;
(3)
Table 9 lists all possible error messages and their possible solution. The error message on the
controller also includes recommendation for correction of the error message. It may also include
help screen for additional information. First try to resolve the problem as written on the unit's
display, since it may be more relevant to the exact situation;