Fincor SERIES 2600, SERIES 2610 Catalog Page
2601/2602
SINGLE-PHASE DC SERIES
2601/2602-1
FIGURE 1.
1/6–5 HP Ratings
115 or 230V, Single Phase
Isolated Regulator
Speed or Torque Control
Overload Protection
DC Tach Feedback
AC Line Starting
External Signal Follower
Run Contact
Configurations
– Open Chassis
– “Bookcase” Style
– NEMA 4/12
NEC enclosed and NEMA Compliance
UL and cUL Listed
1/6 through 5 HP Adjustable Speed
DC Motor Controllers
Series 2601, 2602 units are offered in a variety of standard models based on the three functional groups as
shown in Tables 1-3. These units differ from the 2330
series in that they expand horsepower range with
capacities up to 5 HP while offering the on-board customization features of the 2610MKII series.
Model numbers that include a “P” suffix identify
enclosed units assembled by adding a top cover
assembly to a basic chassis unit. Top cover assemblies
P1, P2 and P3 include integral operator controls. Top
cover control P0 does not and is therefore intended for
remote control operation. The top cover assemblies
may be factory installed or, if desired, easily added to
the basic chassis models as field-installed kits. All
models are reconnectable for either a 115V or 230V A C
power source.
NOTES: (1) Units are shipped calibrated for the maximum horsepower rating.
Units may be calibrated for other standard ratings by changing
the position of a jumper in accordance with instructions provided.
Units are shipped connected for 230V.
Units may be easily reconnected for 115V.
(2) Includes option 1170A cooling fan as standard.
2601/2602
SINGLE-PHASE DC SERIES
2601/2602-2
1. Construction — The die-cast aluminum alloy base assembly
forms the basic Series 2600 open chassis which includes regulator electronics, AC line fuse, power conversion and protective circuitry as a totally functional, self contained unit.
Enclosed models are TENV, NEMA 4 and 12.
Model 2602, when rated five horsepower as an enclosed unit,
requires the addition of Option 1170A cooling fan assembly, as
shown in Figure 3.
Series 2600 unit covers are molded of high strength Noryl® engineering plastic.An aperture in the cover permits mounting a blank
panel for remote control models or various standard or optional
local operator control panels. (See Table 4.)
Where a hinged
cover is desired, Option 1638 provides a kit permitting easy field
installation.
2. Full-Wave Power Conversion — Full-wave converter configuration consisting of four SCR’ s and a free wheeling diode provide
benefits for optimum motor performance and long service.Power
bridge is composed of 600PIV, discrete, encapsulated and electrically isolated devices.The alloy base forms an integral heatsink
with the power control devices electrically isolated from the base.
3. Volta ge T ransient Protection — Metal oxide suppressor across
the AC line is combined with RC snubbers across the power
bridge to limit potentially damaging high voltage spikes from the
AC power source.
4. AC Line Protection — A high (100K amp) interrupting capacity
AC line fuse provides instantaneous protection from peak loads
and fault currents. Optionally offered for Model 2601 is (Option
1010), a two-pole, molded case, magnetic trip circuit breaker
which provides a means of manually disconnecting the AC power
to the controller and motor and automatic, instantaneous trip protection from a peak load.
5. Isolated Regulator – Internal DC circuits are isolated from the
AC power source for operator and equipment safety and for simplified application. The control reference input common may be
grounded or connected without additional isolation to other drive
units or grounded external signal sources.Isolation eliminates the
common condition of line voltage to ground potentials being present on the speed control potentiometer.
6. Feedback Isolation –
(a) Current Feedback – Isolation by optical coupler.
(b) Voltage Feedback – High impedance circuit (two megaohms).
7. Feedback – Two selectable modes of analog feedback are provided. See Table 7 for speed regulation characteristics.
(a) Armature Feedback – Counter EMF voltage feedback with IR
compensation.IR compensation is adjustable to suit individual
motor characteristics and optimize speed regulation in this
mode.
(b) DC Tachometer Feedback – Provides impedance matching,
voltage scaling and terminals for accepting a signal from a DC
tachometer generator mechanically coupled to the drive motor
armature.This results in expanded speed range, improved speed
regulation with load changes and reduced sensitivity to operating conditions such as line voltage variations, ambient temperature changes, motor field heating and other operating variables.
The controller will automatically transfer to counter EMF voltage
feedback to prevent run away if the tachometer circuit is open.
Tachometers producing 7 VDC to 150 VDC at maximum motor
speed may be used.
This feature is suitable for use with unidirectional units using DC
tachometers. See Options 1061C or 1061F for other conditions.
8. Control Voltage – A transformer coupled 24 VDC power supply
isolates all magnetic pushbutton control and logic from the AC
power source for operator protection.
9. Field Supply – Transient protected, half-wave or full-wave. See
Table 6 for output voltages.
10. Contactorless Design – Unit is designed for reliable solid state,
run-stop operation without an armature contactor. Logic includes
a provision to prevent an involuntary restar t after a power failure.
This feature may be defeated when an external customer furnished AC line contactor is used to control the unit.
11. Motor Contactor –
(a) Bidirectional Models — Model numbers which have an “A”suf-
fix such as 2601A, includes DC magnetic armature reversing
contactors.This provides a positive, two-pole disconnection of
the motor armature from the rectified power source. Action of
the contactor is sequenced with the SCR regulator to ensure
that the DC power circuit is “phased-off” before the contactor
is opened.This results in “dry switching”for improved contactor longevity.The standard contactor circuit board permits both
unidirectional and selectable bidirectional operation when
desired. To facilitate this, anti-plug protection is also provided
to prevent armature reversal until a safe minimum speed is
reached.
(b) Unidirectional Models — Model numbers which include a “B”
suffix such as 2602BP1, includes a DC magnetic armature
contactor.This provides a positive, two-pole disconnection of
the motor armature from the rectified power source. Action of
the contactor is sequenced with the SCR regulator to ensure
that the DC power circuit is “phased-off” before the contactor
is opened.This results in “dry-switching”for improved contactor longevity. The contactor circuit board permits unidirectional operation only.
12. Dynamic Braking — Standard feature of model numbers with an
“A” or “B” suffix. Dynamic braking provides exponential rate braking of the DC motor armature. Included is a DB resistor with an
anti-plug circuit to prevent restarting the controller until the braking cycle is complete, thereby preventing a potentially damaging
electrical surge and mechanical stress. The DB resistor is rated
for stopping a typical load, when the external machine inertia
does not exceed that of the motor armature, as shown in Table 9.
13. Motor Overload — A nonadjustable electronic circuit continuously monitors motor armature current and shuts down the drive
whenever the load exceeds 120% for 80 seconds.
(continued)
DESIGN FEATURES AND FUNCTIONS
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