E-216-5N-E
7
CAUTION: Before making wiring connections, verify the validity of flowmeter (pulse generator) and receiving
instrument combination by referring to their product No., tag No., etc.
85〜264V AC
Short-circuit board
If the interlock is not used, attach the
short-circuit board in between 25
(I.Lock) and 26 (COM.1).
D-SUB connector
Short-circuit board
If the externally operated input STOP is not
used, attach the short-circuit board in
between 19 (STOP) and 20 (COM.1).
Terminal Nos.
1 to 8, 17 to 24
Terminal Nos.
9 to 16, 25 to 32
1A
Fig. 5.1 External wire connection terminal diagram
5. WIRING
NOTE: See
“
WIRING
”
in the pulse generator instruction manual.
5.1 Cables for Field Wiring
(1) For flowmeter input signal cable, electrostatically shielded, polyethylene insulated, vinyl-sheathed control
cables (CEVS, 1.25 to 2mm
2
, 2- or 3-conductor), or equivalent, must be used.
For output signal cables, insulated, vinyl-sheathed cables (CVV, CVVS
…
JIS C 3401) are suggested.
(2) Cable shields must be connected to terminal
“
G
”
of the counter. At the probe end, leave the shield wire end
unprepared.
(3) For the connection cable to D-SUB connector, use 25-pin soldering type (male). Create it as a dedicated part.
For an electric wire, use the electric wire "equivalent to UL1007, 0.5mm
2
".
5.2 Wiring Connections
(1) Conduit work is suggested for field wiring.
NOTE: In conduit work, use separate conduit for power cables and signal cables in order to minimize the
possibility of stray current pickup.
(2) Route cables sufficiently away from other power lines or power circuits, if any, to reduce the possibility of
inductive interference to a minimum.
(3) Use crimp-style terminal lugs for connections and ensure good electrical contact. Connection terminals are
found at rear of the counter (Fig. 5.1).
(4) In applications where an inductive load (valve, counter, etc.) is driven, do not fail to use a surge suppressor
(see Fig. 5.2).
(5) For the wiring, ensure approx. 30cm of allowance to enable the easy maintenance.
5.3 Identifying the External Connection Terminal Block
On the rear surface of this device, there are terminal block fixed to input board (terminals No.1 to 8, 17 to 24),
terminal block fixed to output board (terminals No.9 to 16, 25 to 32), D-SUB connector fixed to power supply
board (25-pin female).
