21
Note: The PPC-4000 provides two terminals for 24 Vdc supply for the servos P2.2 & P2.3 (24 Vdc return via P2.4-
P2.6). The PPC-4000 can supply approximately 60 VA through these terminals
1
, for any combination of connected
servos. The PPC-4000 can supply up to twelve 4Nm servos or four 20Nm servos, or three 50Nm servos or some com-
bination that will result in 60 VA of power
2
. If more power than this is required, an external power supply must be
used
3
. See figure 5 for recommended wiring of the external power supply.
1. Power budget for the NXD410 display and oxygen probe does not impact the 60VA budget for the servos.
2. See nominal ratings on page 6.
3. Ratings for external power supply sizing should be based on peak servo ratings
Cables and Connectors
Cord sets having female connectors on both ends are available in 6 and 40 foot lengths. Field wire-
able connectors are available in kit form, 129-192. Fireye recommends cable part number 59-565 to
be used for servo wiring.
As shown above the cable strip length is specified at 30 mm (1.2 in) and each wire strip length is 7
mm (0.275 in).
To use cable 59-565, strip one end as specified. Strip each wire and wire to connector as shown.
FIGURE 5.
1
RS485 B(-)
(BROWN)
2
24 VDC RETURN
(BLACK)
3
EARTH GROUND
(DRAIN)
RS485 A(+)
4
(ORANGE)
5
24 VDC POWER
(RED)
Field wireable Connector
Rear View
(Screw End)
To P12.5
To P2.2/P2.3
To P2.5/P2.6
To P12.6
1
1
1
1
1
1
24Vdc
External
Supply
PPC4000
P2
1
2
3
4
5
6
+24V display
& O
2
Probe
+24Vdc
(and/or connect
to P2-3)
24Vdc
coil
24Vdc
24Vdc
24Vdc
Return
24Vdc
Return
NOTE: External power supply must be
sufficiently rated to supply total desired
servo loads:
4Nm: 7.5VA peak
20Nm: 35VA peak
50Nm: 38VA peak
Example: (4) 4Nm + (3) 20Nm servos
connected = 4*7.5VA + 3*35VA = 135VA
or 24Vdc @ 5.625A
PPC-4000 WIRING DIAGRAM
FOR EXTERNALLY SUPPLIED
POWER FOR SERVO
MOTORS
NO
Relay
Contact
DAISY
CHAIN
DAISY
CHAIN
……
Field wireable connector, 129-192