Arrangement Of The Terminal Board And Switches; Connecting The Power Supply; Connecting The Communication Line; Power Supply Wiring - Panasonic CZ-256ESMC3 Technical Data Manual

Installation Instructions
2
Wiring
Always shut off the power supply (breaker) before installing or uninstalling the Communication Adaptor.
Remove the two screws at the front of the unit and remove the upper case.

Arrangement of the terminal board and switches

Detailed board
illustration
Home key
S6 D1 S7 S8
HOME D2 UP DOWN SET
Terminating resistance plug
for the Communication
Adaptor control wire
S1
100-240V~
B A
1 3
CN32
CN1
Power supply Power switch
terminal strip

(1) Connecting the power supply

The unit can use AC power sources between 100 and 240 V.
Connect the power supply to terminals 2 (N) and 3 (L) on the power terminal strip CN1. (Connect the AC neutral end to N.)
Connect the ground line securely.

(2) Connecting the communication line

For the Communication Adaptor control wires, use only two-conductor shielded wire with a cross-section between 0.5 and 2.0 mm
(MVVS or CPEVS).
Be sure to ground only one end of the shielding.
The overall length of each line should be 1 km or less.
Do not run the communication line through the same conduit as the power supply, use the same cable as the power supply, or run close to
the power supply line (maintain at least 30 cm separation).
Do not run the LINK1 and LINK2 signal lines through the same conduit, use the same cable for wiring, or run them close together.
Use different communication and power cables so they can be differentiated visually.

Power Supply wiring

7-segment LED
Up, down and
set keys
S9
CN2
10 19
0 9
Signal terminal strip
(see details at right)
Inter-unit control wiring
Communication adaptor
Detailed terminal
assembly illustration
N L
ON
100-240V~ OFF
POWER
ADAPT +/- : Communication Adaptor control wire (RS-485)
LINK 1/2: Inter-unit control wiring (HBS)
P1: Pulse meter inputs (gas flow meter and fuel flow meter) (*)
P2 and P3: Pulse meter input (power flow meter) (*)
DI1: All stop input (*)
DI2: All operation input (*)
DI3: Reserved
DO1: All alarm output (*)
DO2: All operation output (*)
(*) Input/output function when connecting to the Intelligent Controller
2
ー 155 ー
10 11 12 13 14 15 16 17 18 19
+ –
DO 1 DO 2 DI 1 DI 2 DI 3
ADAPT(RS485) DO-COMMON DI-COMMON
0 1 2 3 4 5 6 7 8 9
1 U 2 U U1 U2 (LINK2 1 P 2 P 3 P
(LINK1
LINK1 –U2) LINK2 –U2) P-COMMON
2