Wiring Details
Power Wiring
JACE-6 Mounting and Wiring Instructions
Part Number 10821 Published: April 19, 2007
11
Note If powering from a 24V transformer, do not power any other equipment with it. Otherwise, conducted
noise problems may result. Also, do not ground either side of the transformer’s 24V secondary.
Figure 3 NPB-PWR module wiring connections.
Located at the bottom of the NPB-PWR module is a 2-position power connector, and an earth ground spade lug,
as shown in Figure 3.
Connect the supplied earth ground wire to a nearby earth ground point. Unplug the power connector plug from
the module and make connections to it as shown in Figure 3.
Caution Do not plug 24V power into the NPB-PWR (reinsert connector plug) until all other mounting and
wiring is completed. See “Power Up and Initial Checkout,” page 15.
Power consumption depends on installed accessories and option boards, and may vary from:
• JACE-6 with NPB-PWR module alone: approximately 8.5 VA (AC) or 8.5 W (DC)
• JACE-6 with NPB-PWR and four (4) IO-16 modules, plus option boards: up to 20 VA (AC) or 20 W (DC)
NPB-PWR-UN
The NPB-PWR-UN module lets you power the JACE-6 (and if installed, IO-16 modules) from AC line power,
with a universal input range from 90–263Vac. If installing IO-16 modules, the NPB-PWR-UN installs as the last
(end) module in the chain. See Figure 1 on page 5.
Warning • A 120Vac or 240Vac circuit powers the NPB-PWR-UN. Disconnect power to this circuit
before installation to prevent electrical shock of equipment damage.
• Make all connections in accordance with national and local electrical codes. Use copper
conductors only.
• Do not exceed the 30W capacity of NPB-PWR-UN by the powered devices.
+
–
NPB-PWR (cover shown removed)
JACE-6
24Vac
Line Voltage
(Mains)
Earth Ground
or
Dedicated 24Vac Transformer
neither side of secondary tied
to earth ground
24Vdc
24Vdc Power Supply
(Polarity Not Critical)
neither side tied to earth
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