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The optical fiber is the only method of transmitting temperature data from the URTDII
Module to the protective device.
Preassembled plastic optical fibers with connectors can be ordered from Eaton, or from
any distributor of Agilent Technologies® optical fiber products. In addition, these same
distributors offer long rolls of cable with connectors that can be installed in the field.
Some distributors will make custom lengths to order.
NOTICE!
Force is 11 pounds (50 Newtons).
Surplus length of a pre-cut fiber does not cause a problems. Simply coil and tie the excess
fiber at a convenient point. Avoid high tie pressure. Bending radius of the fiber should be
greater than 2 in. (50.8 mm).
The fiber termination at the URTDII simply snaps into or out of the connector. To connect
the fiber termination at the protective device, push the plug of the fiber optic onto the
device interface then turn it until it “snaps”.
CAUTION!
The protective device as well as the URTDII have various power supply options. Make
certain that the power supply is acceptable for both units before connecting the same
power supply to both devices.
Wiring RTDs to the URTDII Module
RTD Channel
(avail. signals see
Reference Manual)
URTDII Connect‐
ion Name
Terminals
Temperature Monitoring Point
WD1
Group Ⅰ, RTD1
J2-1, J2-2
RTD Temperature of the Motor
Winding 1
WD2
Group Ⅰ, RTD2
J2-5, J2-6
RTD Temperature of the Motor
Winding 2
WD3
Group Ⅰ, RTD3
J2-8, J2-9
RTD Temperature of the Motor
Winding 3
WD4
Group Ⅰ, RTD4
J2-12, J2-13
RTD Temperature of the Motor
Winding 4
WD5
Group Ⅰ, RTD5
J2-15, J2-16
RTD Temperature of the Motor
Winding 5
WD6
Group Ⅰ, RTD6
J2-19, J2-20
RTD Temperature of the Motor
Winding 6
MB1
Group Ⅱ, RTD7
J10B-19, J10B-20
RTD Temperature of the Motor
Bearing (1)
187
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EMR-3MP0
4 Protective Elements
4.14 URTDII Module Interface