Blazer IV Brochure
Blazer IV®
Series ¼ - 5hp Isolated Regen Drives
3204 Rocky River Road, Heath Springs, SC 29058
Phone: 803-286-8614
Fax: 803-286-6063
The Blazer IV Series of D.C. motor controls
provide full-wave, four-quadrant regenerative
speed or torque control for 1/4-5 HP shunt wound
and permanent magnet D.C. motors.
The BRC700 models are loaded with standard
features that only Carotron could provide reliably.
One very important feature of the Blazer IV series
is control circuit isolation. The control circuit of
each model is completely isolated from the power
circuit.
This isolation protects reference circuits and
feedback circuits from possible damage due to
accidental shorts to ground. Also, this standard
isolation greatly simplifies master reference,
tachometer follower and process control
applications.
Another primary feature is an armature contactor
for safety disconnect during normal stop
conditions. Logic in the BLAZER IV control circuit
assures that current flow to the motor has ceased
prior to de-energizing the contactors. This reduces
electrical stress and increases contactor life.
Encoder or pulse tachometer feedback is another
key standard feature in the BLAZER IV Series.
This feature allows frequency signals required for
process monitoring to be used to improve speed
regulation and simplify system requirements.
Other standard feedback methods available in
each model are armature voltage or 7 and 50
VDC tachometers. An accessory drive circuit
monitor, Model DCM100-000, is available to assist
in set-up and troubleshooting by plugging into the
control board to easily access 20 separate
signals.
Additional features of the BLAZER IV SERIES are
listed on the following pages. As you can see,
these units are loaded with innovative features
that can simplify your drive applications.
Standard Features
• Regenerative action provides four quadrant
speed control
• Isolation amplifier for providing isolated armature
current feedback
• Impedance isolation, 5 Meg Ohms, for armature
voltage feedback isolation
• Tachometer and encoder feedback are
insensitive to direction of motor rotation
• Encoder power supply, +12 VDC @ 100 mA,
terminal strip accessible
• Jog Delay to allow rapid jogging without
deenergizing the line contactor to extend
contactor life
• Bridge delay circuitry built in to extend contactor
life
• Terminal strip access to Accel/Decel output,
Velocity Loop output and Current Loop input for
systems interface
• Internal JOG pot for adjustment of Jog Speed
• Summing input with on board trim pot to allow
voltage summing with speed reference
• Jumper selection to allow summing input to be
clamped or not clamped in the Jog Mode
• Jumper selection to control summing input
polarity
• 45° angle depluggable terminals for all customer
connections except line, armature and field
connections
• Terminal strip connections for Forward Run,
Reverse Run, Forward Jog, Reverse Jog, Ramp
Stop and Emergency Stop
• LED indicators for Power, Forward and Reverse
directions
• DCM connector and signal test points for easy
troubleshooting
• Inner current loop for fast stable response to
load change
• Metal film resistors and cermet pots for
temperature stability
• I.C. regulated power supplies
• High frequency multi-pulse gating
• Conservative power module rating
• R-C decoupling of signal level inputs for superior
noise rejection
• AC line fuses
• Line MOV and snubber for transient protection
• Functional terminal strip labeling and logical P.C.
board layout
• Independent adjustable linear acceleration and
deceleration in both the forward and reverse
directions
• Independent max speed for forward and reverse
directions
• Independent current limit for forward and reverse
directions
• Integral null adjustment
• Adjustable IR compensation
• Current range selectable by jumper Armature,
encoder or tachometer feedback selectable by
jumper
• Two tachometer feedback voltages selectable by
jumper: 7 or 50 VDC per thousand RPM tach
feedback
• 300 PPR encoder feedback
• Power On/Off switch for control circuit (enclosed
models only)
• Membrane switch control panel for Run Forward,
Run Reverse, Jog Forward, Jog Reverse and
Ramp Stop. Mushroom style locking button for
Emergency Stop (enclosed models with control
panel only)
• NEMA 12 enclosure for enclosed models
Armature contactor and Dynamic Braking for
safety disconnect in stopped condition
Specifications
BRC 702 Models
A.C. INPUT
115 VAC ± 10%, 50/60 Hz ± 2 Hz
230 VAC ± 10%, 50/60 Hz ± 2 Hz
ARMATURE OUTPUT
0- 90 VDC for 115 VAC input
0-180 VDC for 230 VAC input
FIELD OUTPUT
100 VDC @ 1 Amp for 115 VAC input
200 VDC @ 1 Amp for 230 VAC input
HORSEPOWER RANGE
1/4 - 1 HP @ 90 VDC
1/2 - 2 HP @ 180 VDC
BRC 705 Models
A.C. INPUT
230 VAC ± 10%, 50/60 Hz ± 2 Hz
ARMATURE OUTPUT
0-180 VDC
FIELD OUTPUT
200 VDC @ 1 Amp
HORSEPOWER RANGE
1/2 - 5 HP @ 180 VDC
All Models
SPEED REGULATION
Armature feedback: ±1.0% of base speed
Tachometer or Encoder Feedback: ±0.5% of base
speed
TORQUE REGULATION
±2% of current range selected
ADJUSTMENTS
• Max Speed: -20 to +10% of full base speed
• Current Limit: 0 to 150% of current range
selected
• IR Compensation: Range set by current limit
jumper
• ACCEL and DECEL: linear, independently
adjustable forward and reverse, 2 ranges, 1 - 8
sec. or 8 - 60 sec.
• Jog Speed: 0 - 25% of rated armature voltage
• Sum Trim: 0 - 150% of summing input
• Integral Null: null adjustment to eliminate motor
creeping and backup
SPEED RANGE
20:1 motor dependent
TEMPERATURE RANGE
Chassis: 0 - 55°C
Enclosed: 0 - 40°C
.
Standard Models and Descriptions
115
VAC
Input
230VAC
Input
Model
Number
¼ - 1 HP
---
½ - 2 HP
½ - 5 HP
BRC702-000
BRC705-000
¼ - 1 HP
½ - 2 HP
BRC702-E00
---
½ - 5 HP
BRC705-E00
¼ - 1 HP
½ - 2 HP
BRC702-E0C
---
½ - 5 HP
BRC705-E0C
¼ - 1 HP
---
½ - 2 HP
½ - 5 HP
BRC702-0B0
BRC705-0B0
¼ - 1 HP
½ - 2 HP
BRC702-EB0
---
½ - 5 HP
BRC705-EB0
¼ - 1 HP
½ - 2 HP
BRC702-EBC
---
½ - 5 HP
BRC705-EBC
Description
Chassis Only, Basic Model
Chassis Only, Basic Model
NEMA 12 Enclosed Model with
E-Stop, and Power On/Off Switch
NEMA 12 Enclosed Model with
E-Stop, and Power On/Off Switch
NEMA 12 Enclosed Model with Fwd,
Rev, Jog Fwd, Jog Rev, E-Stop, Stop
and Power On/Off Switch
NEMA 12 Enclosed Model with
Speed Pot, Fwd, Rev, Jog Fwd, Jog
Rev, E-Stop, Stop and Power On/Off
Switch
Run Brake Model, Chassis Only
Run Brake Model, Chassis Only
NEMA 12 Enclosed Run-Brake Model
with E-Stop and Power On/Off Switch
NEMA 12 Enclosed Run-Brake Model
with E-Stop and Power On/Off Switch
NEMA 12 Enclosed Run-Brake Model
with Speed Pot, Fwd, Rev, Jog Fwd,
Jog Rev, E-Stop, Stop, and Power
On/Off Switch
NEMA 12 Enclosed Run-Brake Model
with Speed Pot, Fwd, Rev, Jog Fwd,
Jog Rev, E-Stop, Stop and Power
On/Off Switch
Approx.
Shpg. Wt.
Dim. Conn.
11 lbs.
20 lbs.
E.1
E.3
E.5
E.6
22 lbs.
E.2
E.5
30
E.4
E.6
22
E.2
E.5
30
E.4
E.6
11
20
E.1
E.3
E.5
E.6
22
E.2
E.5
30
E.4
E.6
22
E.2
E.5
30
E.4
E.6
3
Dimensions
4
Dimensions
5
Connections
6
Connections
7
Blazer IV®
Series ¼ - 5hp Isolated Regen Drives
View or download the complete Blazer IV Instruction Manual (MAN 1008-00) from www.carotron.com .
3204 Rocky River Road Heath Springs, SC 29058
Phone: (803) 286-8614 Fax: (803) 286-6063
Email: [email protected] Web: www.carotron.com
FLY1049-0A Issued 03-12-2013
8
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