Eurotherm 590SP, Product Manual

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App. L - 2 590SP Digital Product Manual
L
Appendix L 590SP DRV Option
Figure L.6 - DRV Terminal Tightening Torque
Ratings and Wires Sizes
TERMINAL TORQUE RATING
A+, A-, DB+, Ground 1.4 lb-ft (1.9 Nm) 14 to 10 A
F+, F-, 1, 2 0.66 lb-ft (0.9 Nm) 14 A
Circuit Breaker (L1, L2) 3.0 lb-ft (4.0 Nm) 14 to 10 A
DRV WIRING PROCEDURES
Caution
Make certain all wiring complies with national or local electric codes. The 590SP DRV has an AC
supply circuit breaker rated for supplementary protection only. Install motor DC overload protection, as
required.
Follow the wiring guidelines in Chapter 2 for most connections. Refer to the wiring diagram in Figure L.5 at the end
of this appendix. A schematic diagram of the 590SP DRV appears in Figure L.4. The differences in wiring the DRV
model of the 590SP are discussed below.
Power Wiring: The main AC input supply connects directly to the two pole circuit breaker. The motor armature con-
nects to terminals A+ and A-; the field connects to terminals F+ and F-. These terminals are mounted to the DRV base.
Motor Field Supply: The 590SP DRV has an on board field rectifier used to supply the motor field. The unit is
shipped with jumpers JP1 and JP2 in positions 2 and 3 so that the breaker supplies the rectifier. If the field requires an
input supply rated different than the main supply, connect this supply to terminals D1 and D2 and move jumpers JP1
and JP2 to positions 1 and 2 .
WARNING!
If supplying the field rectifier through terminals D1 and D2, the field will remain powered after the
contactor is de-energized and when the input supply circuit breaker is switched off. Check the field
voltage after removing power and before servicing the drive.
Power Conductor Ampacity and Terminal Torque: Rate the supply and output conductors according to the proce-
dures in Chapter 3. Figure L.6 lists the terminal torque ratings and terminal wire size range. Terminals A+, A- and
DB+ require spade lugs for #10 screws. Terminals F+, F- and armature contactor spare terminals 1 and 2 require #5
screw spade lugs.
Grounding: The DRV model provides separate ground screws for the input supply and the motor. Both are screw ter-
minations located on the DRV base.
NOTE. The 590SP DRV is designed to accept a three-wire supply, that is, line, neutral and ground.
Supplying the drive from a two-wire, non-grounded supply is not recommended.
Control Wiring: The 590SP DRV is shipped with jumpers JP5 and JP6 preset in positions 2 and 3 so that the DRV
derives its control supply off the main input supply.
Drive Start Relay: The DC contactor coil is rated at 240 VAC and should match the supply input. Leave jumpers JP3
and JP4 in the preset positions 2 and 3 so that the main supply powers the coil through the drive's internal drive start relay.
Signal Wiring (Terminal Blocks A, B and C): Because the DRV model isolates power to the motor with a DC con-
tactor, the hardwired drive enable terminal (C5) is pre-wired from the +24 VDC terminal (C9) through a normally
opened, auxiliary contact on the internal DC contactor. A normally opened auxiliary contact, rated at 10 amps, is
available as a spare at terminals 1 and 2, adjacent to field connection terminals on the mounting base.
NOTE. Refer to Chapter 3 for wiring instructions all other signal wiring connections.
Calibration and Speed Feedback Wiring: Speed feedback wiring and calibration for the DRV model are identical
to the 590SP. Refer to Chapter 3.