Product Overview

P—
P470 Electronic Pressure Control with Display Product/Technical Bulletin
5
The P470 control uses a P399 transducer to generate
the 0.5 to 4.5 VDC input signal. The transducer is
wired to the control at the terminal block (
TB3
) on the
upper-left of the circuit board. Refer to Figures 4-7
when wiring the transducer to the control. Connect the
cable shield to
COM
on the
TB3
terminal block. Do not
connect the other end of the cable shield to anything.
Use 22 AWG, 3-wire, shielded cable to extend the
wiring harness. The recommended maximum length of
shielded cable is 100 ft (30.5m) between the
transducer and the control. Refer to the
P399
Electronic Pressure Transducer Product/Technical
Bulletin (LIT-125515)
for more information about the
installing and wiring the pressure transducer.
NC
C
NO
P470FB
24 VAC
Class 2
Transformer
Optional Binary Input Device
(SPST Switch)
SEN
COM
Load
T1
T2
S2
5VDC
RED
BLK
WHT
P399
Transducer
3-Wire
Shielded
Cable
TB3
Connect Cable
Shield to COM
Figure 4: Typical Wiring for 24 VAC Applications of
the P470FB-1 Pressure Control
240V
AC
COM
120V
NC
C
NO
P470EB
120 VAC
Neutral
Load
RED
BLK
WHT
SEN
COM
S2
5VDC
Optional Binary Input Device
(SPST Switch)
P399
Transducer
3-Wire
Shielded
Cable
TB3
Connect Cable
Shield to COM
Figure 5: Typical Wiring for 120 VAC Applications
of the P470EB-1 Pressure Control
240V
AC
COM
120V
NC
C
NO
P470EB
208/240 VAC
Load
Optional Binary Input Device
(SPST Switch)
RED
BLK
WHT
SEN
COM
S2
5VDC
L1
L2
P399
Transducer
3-Wire
Shielded
Cable
TB3
Connect Cable
Shield to COM
Figure 6: Typical Wiring for 208/240VAC
Applications of the P470EB-1 Pressure Control
P470
Optional Binary Input Device
(SPST Switch)
SEN
COM
S2
5VDC
RED
BLK
WHT
P399
Transducer
P470
SEN
COM
S2
5VDC
Optional Binary Input Device
(SPST Switch)
3-Wire
Shielded
Cable
TB3
TB3
Connect Shield from
Transducer Cable to
COM on TB3 in Control
Figure 7: Wire Multiple P470 Controls in Parallel
with a Single P399 Transducer
IMPORTANT:
No more than four P470
controls should be wired to a
single P399 transducer.
Use a
3-wire cable that is 15 ft (4.5m)
or less to connect the controls.
See Figure 7.