Maretron ACM100 - Manual (Page 11)

Revision 1.2 Page 7
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will need to purchase an optional current sensor (Part # M000630) for monitoring this type of
system.
Step 1: De-energize the AC Source.
Step 2: The Current Transformer has black and white wires. Install the Phase A Current
Transformer as follows:
a. Connect the black wire to pin 7 (I
A+
) on the ACM100
b. Connect the white wire to pin 8 (I
A-
) on the ACM100
c. Disconnect the Phase A hot wire from the AC power source and place it through the
hole in the Current Sensor such that the arrow on the Current Sensor points towards
the AC power source. Then, reattach the hot wire to the AC power source.
Step 3: Repeat step 2 for the Phase B Current Transformer as follows:
a. Connect the black wire to pin 9 (I
B+
) on the ACM100
b. Connect the white wire to pin 10 (I
B-
) on the ACM100
c. Disconnect the Phase B hot wire from the AC power source and place it through the
hole in the Current Sensor such that the arrow on the Current Sensor points towards
the AC power source. Then, reattach the hot wire to the AC power source.
Step 4: You must supply cables for connecting the voltage sense pins on the ACM100 to the
AC source. For the purposes of these instructions, we will assume that each cable has one
black conductor and one white conductor. Install the first voltage sense cable as follows:
a. Connect the white wire from one end of the first Voltage Sense cable to pin 4
(V
ANeutral
) on the ACM100.
b. Connect the white wire from the other end of the first Voltage Sense cable to the
neutral wire of the AC source being monitored
c. Connect the black wire from one end of the first Voltage Sense cable to pin 1 (V
ALine
)
on the ACM100
d. Connect the black wire from the other end of the first Voltage Sense cable to a fuse
appropriately sized for the black wire (18 gauge wire minimum and 3 amp fuse or
less).
e. Connect the other end of the fuse to the AC source hot wire (the fuse should be
placed within 6 inches of the connection to the hot wire).
Step 5: Install the second Voltage Sense cable as follows:
a. Connect the white wire from one end of the second Voltage Sense cable to pin 5
(V
BNeutral
) on the ACM100.
b. Connect the white wire from the other end of the second Voltage Sense cable to the
neutral wire of the AC source being monitored.
c. Connect the black wire from one end of the second Voltage Sense cable to pin 2
(V
BLine
) on the ACM100
d. Connect the black wire from the other end of the second Voltage Sense cable to a
fuse appropriately sized for the black wire (18 gauge wire minimum and 3 amp fuse
or less).
e. Connect the other end of the fuse to the AC source hot wire (the fuse should be
placed within 6 inches of the connection to the hot wire).