Terra SRM524, Manual

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DC voltages diagnostic LEDs meanings described in Table 2.
Table 2 .
LED “V” LED “H” Voltage at
DC IN
DC from V
lines switch
DC to /
from H lines
switch
Voltage
in V line
Voltage
in H line
Warnings
and notes
blank Yellow 15…20 V OFF OFF 0 V 0 V Normal operation.
Multiswitch powered from
DC IN port.
blank Green 0 V OFF ON 0 V 15…20 V Normal operation.
Multiswitch powered from
H line.
blank Blinking
Yellow /
Green
1. 15…20 V
2. 15…20 V
OFF
OFF
ON
OFF
0 V
0 V
15…20 V
15…20 V
Normal operation.
Multiswitch powered from
DC IN port and power
pass from DC IN to H
lines
Normal operation.
Multiswitch powered from
DC IN port. Voltage in H
line from another system
power point.
blank Red 1. < 14 V
2. 0 V
OFF
OFF
OFF
ON
0 V
0 V
0 V
< 14 V
Low voltage at DC IN
.
Multiswitch powered from
DC IN port.
Attention! increased
current consumption .
Low voltage in H line .
Multiswitch powered
from H line. Voltage in H
line from another system
power point.
Attention! increased
current consumption .
Green blank 0 V ON OFF 15…20 V 0 V Normal operation.
Multiswitch powered from
V line.
Red blank 0 V ON OFF < 14 V 0 V Low voltage in V line .
Multiswitch powered
from V line. Voltage in V
line from another system
power point.
Attention! increased
current consumption .
Green Yellow 15…20 V OFF OFF 15...20 V 0 V Normal operation.
Multiswitch powered from
DC IN port. Voltage in V
line from another system
power point.
Green Green 0 V One of switches is ON 15...20 V 15...20 V Normal operation.
Multiswitch powered from
V or H line (depending on
which switch is ON).
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