Line Reactors; Auxiliary Ac Supply And Connections; Table 4-3 Terminal Functions - Emerson Quantum MP QMP45A4 User Manual

Safety Product Mechanical
Information Information Installation
Figure 4-7 Removing the MOV ground connection, Size 1
3
1
2
The method for disconnecting the MOV ground connection is shown
below:
1. Remove the M4 x 16 screw using T20 Torx driver.
2. Remove the M4 x 12 screw using T20 Torx driver.
3. Remove the plate.
4. Re-fit the M4 x 12 screw using T20 Torx driver and tighten to a
torque of 0.6 Nm (0.44 Ib ft).
5. Fit a M4 x 16 nylon screw (not supplied) and tighten to a torque of
0.25 Nm (0.18 Ib ft).
The M4 x 16 screw (1) should not be re-used if the plate (3)
is not re-installed. Instead a nylon screw should be used.
WARNING
Figure 4-8 Removing the MOV ground connection, Size 2
1
The method for disconnecting the MOV ground connection is shown
below:
1. Remove the M4 x 30 screw using T20 Torx driver
If re-fitting the M4 x 30 screw using T20 Torx driver, the screw must be
tightened to a torque of 2.5Nm (1.84 lb ft).
4.3.3 SCR bridge AC supply
Table 4-1 Three phase AC supply
Specification
Max nominal supply
Tolerance
Min nominal supply
Tolerance
4.4

Line reactors

The Quantum MP, in common with all naturally commutated SCR drives,
causes voltage notches at the input supply terminals. In order to avoid
disturbance to other equipment using the same supply, the addition of
external line inductance is strongly recommended in order to restrict the
depth of the notches imposed on the shared supply. This is generally not
Quantum MP User Guide
Issue: A3
Electrical Getting Basic
Installation Started parameters
5
4
Product voltage variant
480V
480V
+10%
24V
-20%
www.emersonct.com
Running the SMARTCARD
Optimization
Motor Operation
necessary where a dedicated transformer is used to supply the drive.
The following recommendations for added line inductance, have been
calculated based on the power drive systems standard: EN61800-
3:2004 "Adjustable speed electrical power drive systems – Part 3: EMC
requirements and specific test methods".
NOTE
The current ratings specified in Table 4-2 is for typical motor currents
where the motor current ripple is no more than 50% of drive rating.
Table 4-2 Minimum values of L
480V supply
Model
QMP45A4(R)
QMP75A4(R)
QMP155A4(R)
QMP210A4(R)
QMP350A4(R)
QMP400A4(R)
QMP550A4(R)
QMP700A4(R)
4.5

Auxiliary AC supply and connections

Table 4-3 Terminal functions

Terminals
Supply for control electronics and field controller. These
terminals should be in phase with the mains supply to the
E1, E3 drive. E1 and E3 are pre-wired at the factory to the main
supply lines L1 and L3. If it is necessary to separate the
auxiliary and main supplies, see section 4.6
Field on / off. When L11 and L12 are open the supply is
L11, L12 disconnected to the field regulator so there will be no field
current.
F+, F- Field supply to the motor.
These terminals are used to provide feedback from the
motor armature terminals. This is required when there is a
contactor in the main DC armature connection as is the
case with Quantum MP. When the contactor is opened
MA1, MA2
the drive will still be receiving armature feedback. This
allows the field regulator to function correctly when the
contactor is open. MA1 and MA2 are pre-wired at the
factory to the appropriate armature terminals.
Table 4-4 One phase line to line supply
Max nominal supply
Tolerance
Min nominal supply
Tolerance
Each drive has an on-board field controller with the following current
ratings.
Onboard Advanced Technical
PLC Parameters Data
and inductor current rating -
add
L Typical
add
current rating
µH A
260 38
260 63
190 130
140 176
85 293
71 351
54 460
43 586
Function
Specification
UL
Diagnostics
Information
Maximum
current rating
A
40
67
139
188
313
375
492
626
Value
480 V
+10%
208 V
-10%
37