27
In
st
al
la
tion
Wiring
■
Input signal
To run the pump in EXT mode or to use STOP function, connect signal wires to
the EXT terminal via a DIN 5-pin connector.
• When using an open collector:
Pay attention to polarity. PIN 1 and 2 are plus (+), and PIN 3 and 4 are minus (-).
• When using a contact:
Use a mechanical relay designed for an electronic circuit. Its minimum application
load should be 3mA or less.
PIN 1 : Pulse (brown)
PIN 2 : STOP (white)
PIN 3 :
COM
(blue)
PIN 4 : COM (black)
PIN 5 : N.C. (green)
*
Each terminal is coloured as
above for our optional cable.
The PIN 5 is not used.
NOTE
•
Do not lay on these signal cables in parallel with a power cable or combine them in a
concentric cable (ex. 5 wires cable). Otherwise noise is generated through the cables
due to induction effect and it results in malfunction or failure.
•
The following products are the recommended SSRs (Solid State Relays) for signal
input. Any other SSRs may cause malfunction. See manufacturer's information for
details on these SSRs.
–OMRON G3FD-102S or G3FD-102SN
–OMRON G3TA-IDZR02S or G3TA-IDZR02SM
•
When using a mechanical relay for signal input, its minimum application load should
be 3mA or below.
•
Insert the DIN connector as far as it will go and then rotate the outer ring to fix it.
•
Our optional cable has 5 wires. Cut off a green wire that is not used.
•
PIN 5 is not used. Do not short-circuit it to COM 3 or 4.
*Use either a no-voltage contact or an open collector.
*
Set pulse duration in 10-100ms and the number of pulses at or below 360 pulses per
minute.
Wiring for
Pulse signal
Wiring for
STOP signal
3
2
4
5
1
3
2
4
5
1
