2. WIRING
2-14
2.2.1 MC-3000S connections
Unfasten four screws to remove the cover, pass the cables through the clamps and
attach the cables to respective connectors. The shield part of the cable (or drain wire)
must be fastened by (connected to) the clamp.
Note: Fasten the cable shield with the cable clamp.
How to set NC/NO output (J2)
The POWER FAIL signal on the connector J2 can be set to NC (normal close) output
or NO (normal open) output as shown in the table below.
How to set input specification (J4 to J9)
For connectors J4 to J7, the connections are different depending on the input
specifications as shown below. Also, for J8 and J9, the signals which are input/output
are shown.
Connector J4
Pin# Signal name In/Out Description NO NC
1 24V_IN - 24 VDC
DPYC-1.5
2 24V_GND - GND (24 VDC)
3 PWR_FAIL_A Out Power fail output
TTYCS(LA)-1
No connection
4 PWR_FAIL_COM Out Power fail output
TTYCS(LA)-1
5 PWR_FAIL_B Out Power fail output No connection
Pin
#
Signal
name
In/
Out
Description IEC61162-2 IEC61162-1
1 TD1-A Out Serial CH1, output IEC61162-1/2/modbus TTYCS(LA)-4 TTYCS(LA)-4
2 TD1-B Out Serial CH1, output IEC61162-1/2/modbus
3 RD1-A In Serial CH1, input IEC61162-2/modbus No connection
4 RD1-B In Serial CH1, input IEC61162-2/modbus
5 ISOGND1 - Isolation, GND (CH1)
6 RD1-H In Serial CH1, input IEC61162-1 No connection TTYCS(LA)-4
7 RD1-C In Serial CH1, input IEC61162-1
J1
J2
J4
J5
J7
J6
J8
J9
For TTYCSLA cables, pass the drain
wire into the shrinking tube (local supply),
then use these crimp-on lugs and screws
to connect drain wires from TTYCSLA cables
to here.
DPYC1.5
MC1.5-W-L cable
TTYCS-4/
TTYCSLA-4
TTYCS-1Q/
TTYCSLA-1Q
FR-FTPC-CY cable
IV-1.25sq. (Local supply)
IV-1.25sq. (Local supply)