3-8
Chapter 3. MOUNTING AND WIRING
Wiring
CAUTION
Do not apply a negative voltage or a voltage exceeding 5V to the external
setup voltage input terminal. Doing so might cause malfunction or equipment
failure.
When using a relay for external contact input and/or external 3-way switching
input, always use a relay designed for micro-current use (with gold contacts).
Failure to do so could cause faulty contact, resulting in malfunction.
If there is a risk of a power surge caused by lightning, use Azbil Corporation's
SurgeNon to prevent possible fire or equipment failure.
Gas type switching by external contact input, flow rate switching, and ana-
log input/output voltage range switching by external 3-way input switching
should be done only after setting the operation mode to fully closed. Switching
while controlling could cause large fluctuations.
Be sure to check that the wiring is correct before turning the power on.
Incorrect wiring could cause damage or malfunction.
Do not apply excessive force to cables or connectors when connector cables
or the AC adapter is attached. Excessive force may damage the connectors or
circuit board.
z Connector pin layout
Connector model No. (device side): HIF3BA-20PA-2.54DS
Manufacturer: HIROSE ELECTRIC CO., LTD.
z Table of compatible connectors (all made by HIROSE ELECTRIC CO., LTD.)
Connector type
Compatible connec-
tor model No.
Compatible contact
model No.
Compatible wire
Contact crimp type HIF3BA-20D-2.54C HIF3-2226SCC AWG#22 to #26
(single wire allowed)
Cable clamp type HIF3BA-20D-2.54R Not required AWG#28 (flat cable only)
20 19
2
1
View from connector insertion side
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