IM02602002E
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MP-3000
Connect a source of 120 Vac only to the power terminals of connector
J3 on the URTD module. Connect either terminal 16 or terminal 32
(but not both) to a non-current-carrying safety ground.
-
The maximum cable length is 500 ft (152 m).
Consult URTD Module Instruction Leaet I.L.17367.
Three URTD terminals are provided for each RTD input. Terminals
1-15 and 17-19 are inputs for up to 6-winding RTDs. Terminals 20-25
accept up to two motor bearing RTDs. Terminals 26-31 accept up to
two load bearing RTDs. Terminals 33-35 accept an auxiliary RTD.
The three terminals for any unused RTD input channel should be
wired together. For example, if MW5 and MW6 are unused, MW5
terminals 13-15 should be wired together; and MW6 terminals 17-19
should be separately wired together.
Figure 6.9 shows the wiring of RTDs to the URTD inputs. Use
#18 AWG, three-conductor shielded cable. Note the connection rules
in the gure. When making connections to a two-lead RTD, connect
two of the cable conductors to one of the RTD leads as shown. Make
this connection as close to the motor as possible. Connect the third
cable conductor to the remaining RTD lead.
Connect the shield and drain wire, along with the one cable conduc-
tor, to the middle of the three RTD input channel terminals, as shown
in Figure 6.9. The RTD cable shield should be connected only at the
URTD end, and insulated at the RTD end. The RTDs themselves
must not be grounded at the motor.
Remember to set the URTD module DIP switches according to the
types of RTDs in each of the winding, motor bearing, load bearing, and
auxiliary groups. Refer to URTD Module Instruction Leaet I.L. 17367.
Figure 6.7 shows connections between the URTD and the MP-3000.
Use either the optical ber or the electrical 3-wire connection. It is not
necessary to connect both. If both are connected, the MP-3000 uses
data from the optical ber. It defaults to the wired connection, only if
the ber is removed or fails.
The optical ber is the much-preferred method of transmitting
temperature data from the URTD to the MP-3000. It is also
easier to install.
Preassembled plastic optical bers with connectors can be ordered
from Eaton Inc., or from any distributor of Agilent Technologies® opti-
cal ber products.
In addition, these same distributors offer long rolls of cable with con-
nectors that can be installed in the eld. Some distributors will make
custom lengths to order.
The ber length should not exceed 400 ft (121.9 m). For long runs
over 33 ft (10 m), be sure to use H-P extra low loss plastic ber HBFR-
ELS or -EUS. Do not splice ber. Maximum short-term pulling force is
11.3 lbf (50 N).
Surplus length of a precut ber causes no problems. Simply coil and
tie the excess ber at a convenient point. Avoid high tie pressure.
The bending radius of the ber should be greater than 2 in. (50.8 mm).
The ber terminations simply snap into or out of the connectors of the
URTD and MP-3000.
When using 3-wire shielded cable, wire according to the connection
guidelines in Table III of the Universal RTD Module IL 17367. The
3-wire shielded cable should be #16 AWG (1.31 mm
2
) or #18 AWG
(0.832 mm
2
). Connect the cable shield only at the MP-3000 end, at
terminal 23. Insulate the shield, and do not connect at the URTD end.
Length (Meters) Catalog Number Number
1 MPFO-1 HBFR-ELS001 or
HBFR-RLS001
5 MPFO-5 HBFR-ELS005 or
HBFR-RLS005
10 MPFO-10 HBFR-ELS010 or
HBFR-RLS010
25 MPFO-25 HBFR-ELS025
50 MPFO-50 HBFR-ELS050
75 MPFO-75 HBFR-ELS075
76 MPFO-76 HBFR-ELS076
100 MPFO-100 HBFR-ELS100
120 MPFO-120 HBFR-ELS120
Uncut Fiber Not Applicable HBFR-EUS (length)
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