Sprint Electric 370 User manual

World Class Design | World Class Function | 30 Years Expertise in Industrial Motor Control
Product Manual HG105269EN00 Issue 1 (05/2022)
DC MOTOR DRIVE
370

Please read this information before installing or using the product.
Install, use and maintain this product following the procedures provided.
The manual(s) cannot provide all details, variations and contingencies required for your
installation, operation and maintenance of this product or the apparatus with this product
installed. For further help or information, refer to your local Supplier sales offi ce.
Application area
The equipment described is intended for industrial (non-consumer) motor speed control.
Intended users
To safely enable the user to obtain maximum benefi t from the equipment:
• Ensure this information is available to all persons required to install, confi gure or service
the described equipment or any other associated operation.
• Always store the manual in a conveniently accessible area for quick reference.
• Make it available for the next user/owner of the product.
Safety
Ensure all users and operators understand the included WARNINGS, CAUTIONS and
NOTES, which alert the user to safety issues. COMPLY WITH WARNINGS AND CAUTIONS
AT ALL TIMES. Each of these carries a special meaning and should be read carefully:
WARNING!
A WARNING is given when non-compliance with the warning may result in
personal injury and/or equipment damage.
CAUTION!
A CAUTION is given when non-compliance with the caution may result in
permanent equipment damage.
NOTE A note provides specifi c information to make important instructions clear.
Symbols
Attention Electrostatic
Discharge (ESD)
Electric Shock
Hazard
See the instructions for use.
Specifi c warnings not found
on the label.
This equipment contains
ESD sensitive parts. Observe
static control precautions
when handling, installing
and servicing this product.
Disconnect the mains
supply before working on
the unit.
Do not touch presets,
switches and jumpers!
Always use the correct
insulated adjustment tools.
This product is of the restricted sales distribution class according to IEC 61800-3
and has a "professional equipment" designation as defi ned in EN 61000-3-2.

Installation
• Ensure mechanically secure fi xings are in use as recommended.
• Ensure cooling airfl ow around the product is as recommended.
• Ensure cables/wire terminations are as recommended and are torqued correctly.
• Ensure the product rating is correct - do not exceed the rating.
Application risk
Electromechanical safety is the responsibility of the user. The integration of this product
into other apparatus or systems is not the manufacturer's or distributor of the product's
responsibility. It is the user's responsibility to ensure the compliance of the installation with
any regulations in force.
Health and safety at work
Electrical devices can constitute a safety hazard. Thorough personnel training is an aid
to SAFETY and productivity. SAFETY awareness not only reduces the risk of accidents and
injuries in your plant but also has a direct impact on improving product quality and costs.
If you have any doubts about the SAFETY of your system or process, consult an expert
immediately. Do not proceed without doing so. If in doubt, refer to the Supplier.
CAUTION!
EQUIPMENT DAMAGE HAZARD
• We thoroughly test our products. However, before installation and start-up,
inspect all equipment for transit damage, loose parts, packing materials, etc.
• Installation must observe the required environmental conditions for safe and
reliable operation.
• In a domestic environment, this product may cause radio interference, requiring
adequate measures to be taken. Obtain the permission of the supply authority
before connecting to the low voltage supply.
WARNING!
PERSONAL INJURY AND/OR ELECTRICAL SHOCK HAZARD
• Always isolate all power supplies from the equipment before starting any work.
• Never perform high voltage resistance checks on the wiring without fi rst
disconnecting the product from the circuit under test.
• Use guarding and additional safety systems to prevent injury and electric shock.
• Metal parts may reach 90°C during operation.
Hazards
This equipment can endanger life through rotating machinery and high voltages.
WARNING!
Only qualifi ed personnel must install, operate and maintain this equipment.
A qualifi ed person is someone technically competent and familiar with all safety
information, established safety practices, installation, operation, maintenance
and the hazards involved with this equipment and any associated machinery.
General risks

Weight
Consideration should be given to the weight of our heavier products when handling.
Risk assessment
Under fault conditions or conditions not intended: the motor speed may be incorrect; the
motor speed may be excessive; the direction of rotation may be incorrect; the motor may be
energised.
In all situations, the user should provide suffi cient guarding and/or additional redundant
monitoring and safety systems to prevent risk of injury.
NOTE: During a power loss event, the product will commence a sequenced shut-down
procedure. Therefore, the system designer must provide suitable protection for this case.
Maintenance
Only qualifi ed personnel should maintain and effect repair using only the recommended
spares, alternatively return the equipment to the factory for repair. The use of unapproved
parts may create a hazard and risk of injury.
WARNING!
PERSONAL INJURY AND/OR EQUIPMENT DAMAGE HAZARD
When replacing a product, all user-defi ned parameters that defi ne the product's
operation must be installed correctly before returning to use. Failure to do so
may create a hazard and risk of injury.
The packaging is infl ammable and incorrect disposal may lead to the generation
of lethal toxic fumes.
Repairs
Repair reports can only be given if the user makes suffi cient and accurate defect reporting.
Remember that the product without the required precautions can represent an electrical
hazard and risk of injury, and that rotating machinery is a mechanical hazard.
Protective insulation
Non-isolated product
WARNING!
The motor must be connected to an appropriate safety earth.
Failure to do so presents an electrical shock hazard. Exposed metal work in this
equipment is protected by basic insulation and bonding to a safety earth.
This product is classifi ed as a component and must be used in a suitable enclosure.
1. There is no isolation between the Power and Control Circuits. ALL connections to
the Drive are HAZARDOUS. Mount the drive in an earthed enclosure.
2. The Installer MUST provide Protection for the End User by using Double or
Re-inforced Insulation. The drive's Control signal terminals operate at the output
voltage of the drive. Therefore, User controls MUST be made safe by the use of suitably
insulated components, i.e. Potentiometer, Run Switch.
3. DO NOT connect these Control signal terminals to low voltage equipment or any
non-isolated potential as this will cause signifi cant damage to both the Drive and
attached equipment.

Disposal
This product contains materials that are consignable waste under the Hazardous Waste
Regulations 2005. Metal and plastic materials can be recycled, however, disposal of the
printed circuit board requires compliance with all valid environmental control laws.
Products that must be recycled in accordance with the WEEE Regulations are
marked with the symbol opposite. Contact us when recyling the product.
Contents:
1 Introduction 11 Introduction 1
2 Mechanical dimensions 22 Mechanical dimensions 2
3 Guide for systems used in the EU 33 Guide for systems used in the EU 3
4 Multiple drives 34 Multiple drives 3
5 Requirements for EMC compliance 45 Requirements for EMC compliance 4
6 Installation 56 Installation 5
6.1 Motor installation 5
6.2 Drive installation 5
6.2.1 Electrical installation......................................................................................5
7 Commissioning 87 Commissioning 8
7.1 Initial settings - without power 8
7.2 Pre-operation motor check list 8
7.3 Operating the drive 9
8 Options 108 Options 10
9 Specications 119 Specications 11

11 IntroductionIntroduction
The 370 DC Drive is a non-isolated speed controller for small brushed shunt wound or
permanent magnet DC motors.
This "non-isolated" drive has control signals that are NOT isolated from the mains supply,
therefore, do not connect any of the terminals to earth or to other non-isolated equipment
as when power is applied to the drive ALL terminals are at dangerous line potential.
To control the motor speed the drive uses speed feedback derived from either the armature
voltage or a shaft-mounted tachogenerator. It incorporates an accurate current control loop
to protect itself and the motor.
Current loop: full P+I current shunt feedback
Speed loop: full P+I armature voltage or tach feedback
Speed range: 0-100% (motor dependent)
Load regulation: typically 0.1% Tacho, 2% Armature Volts
The LV sux, for example 370 LV60, denotes a low voltage version.
This component is hazardous. Please obtain expert help if you are not qualied to
install this equipment. Make safety a priority.
Read about the general risks and warnings at the front of this manual.
This apparatus complies with the protection requirements of the relevant EU
Directives.
WARNING!
PERSONAL INJURY HAZARD
This product is non-isolated and so, when power is applied to the drive, ALL
terminals are at dangerous line potential.
Ensure that connected items (e.g. speed potentiometer, Tacho, etc.) are NOT
earthed, and have sucient dielectric strength to avoid breakdown.
1Introduction

22 Mechanical dimensionsMechanical dimensions
97 mm
100 mm
86 mm
40 mm
90 mm
370
screw terminals
4 off - suitable for
M4 x 20 mm bolts
Figure 1 Mechanical dimensions
WARNING!
PERSONAL INJURY AND/OR
EQUIPMENT DAMAGE HAZARD
The drives are NON-ISOLATED.
Do not allow contact of the enclosure with the drive card electronics.
2Mechanical dimensions

33 Guide for systems used in the EUGuide for systems used in the EU
Special consideration must be given to installations in member states of the European Union
regarding noise suppression and immunity. According to IEC 1800-3 (EN61800-3) the drive
units are classied as complex components only for professional assemblers, with no CE
marking for EMC.
The drive manufacturer is responsible for the provision of installation guidelines.
The resulting EMC behaviour is the responsibility of the manufacturer of the system
or installation. The units are subject to the LOW VOLTAGE DIRECTIVE 73/23/EEC and
are CE marked accordingly.
Following the procedures outlined below will normally be required for the drive system
to comply with the European regulations, some systems may require different measures.
Installers must have a level of technical competence to correctly install. Although the drive
unit itself is not subject to the EMC directive, considerable development work has been
undertaken to ensure that the noise emissions and immunity are optimised.
EN61800-3 species two alternative operating environments. These are the Domestic
(1st environment) and Industrial (2nd environment). There are no limits specied for
conducted or radiated emissions in the industrial environment, hence it is usual for
the AC supply lter to be omitted in Industrial systems.
Denition of an industrial environment: all establishments, other than those directly
connected to a low-voltage power supply network that supplies buildings used for
domestic purposes.
*
44 Multiple drivesMultiple drives
The arrangement shown below is for multiple drives with one lter, showing the star point
earthing method.
The lter should be rated for the worst case total armature current load. The drive units
are designed to function normally on unltered AC supplies shared with other thyristor DC
drives. (Not AC drives).
DRIVE 1
AC SUPPLY
FILTER
UNIT *
DRIVE 2
24V LOGIC CONTROL CLEAN EARTH
INSULATED FROM METALWORK
ANALOGUE 0V (COM) CLEAN EARTH
INSULATED FROM METALWORK
BACKPLATE
METALWORK
DOORS
110V CONTROL
CUBICLE
METALWORK
EARTH
STAR
POINT
INCOMING SAFETY EARTH
Figure 2 Star point connections for multiple drives
3Guide for systems used in the EU

• Keep parallel runs of power and control cables at least
0.3 metres apart. Cross-overs must be at right angles.
• Keep sensitive components at least 0.3 metres from
the drive and power supply cables.
• The AC connections from the lter to the drive must be
less than 0.3 metres or, if longer, correctly screened.
• Do not run ltered and unltered AC supply cables
together.
• Control signals must be ltered or suppressed, e.g.
control relay coils and current carrying contacts. The
drive module has built-in lters on signal outputs.
• The AC supply lter must have a good earth connection
to the enclosure back plane. Take care with painted
metal to ensure good conductivity.
• The AC input lter has earth leakage currents. Earth
RCD devices may need to be set at 5% of rated current.
• The metal enclosure will be RF ground. The AC lter,
drive earth and motor cable screen should connect
directly to the metal cabinet for best performance.
• Linear control signal cables must be screened, with
the screen earthed at the drive end only. Minimise the
length of screen stripped back and connect it to an
analogue earth point.
• (1) The motor cable must be screened or armoured
with 360 degree screen terminations to earth at each
end. The cable must have an internal earth cable and
the screen must extend into the enclosure and motor
terminal box to form a Faraday cage without gaps.
• (2) The internal earth cable must be earthed at each
end. The incoming earth must be effective at RF.
WARNING! The earth safety must always take
precedence.
55 Requirements for EMC complianceRequirements for EMC compliance
WARNING!
ELECTRIC SHOCK HAZARD
AC supply lters
must not be used
on supplies that
are unbalanced or
oat with respect to
earth.
The drive and AC
lter must only
be used with a
permanent earth
connection. No
plugs/sockets are
allowed in the AC
supply.
The AC supply
lter contains high
voltage capacitors
and should not
be touched for a
period of at least 20
seconds after the
removal of the AC
supply.
DRIVE
CONTROL
TERMINALS
DRIVE
AC SUPPLY
INPUTS
DRIVE
EARTH
TERMINAL
ARMATURE
AND FIELD
OUTPUTS
CONTROL
SIGNAL
FILTERS
AC SUPPLY
FILTER
UNIT *
dc drive module
User’s metal enclosure
12
Figure 3 Connections for EMC compliance
4Requirements for EMC compliance

66 InstallationInstallation
6.1 Motor installation
• Foot-mounted motors must be level and secure.
• Ensure accurate alignment of the motor shaft and couplings.
• Do not hammer pulleys or couplings onto the motor shaft.
• Protect the motor from ingress of foreign matter during installation.
NOTE: This drive does not provide motor over-temperature protection. If required, t
an external thermal sensor device to the motor that will remove the supply when activated
by over-temperature.
Earthing: Connect the motor to the system enclosure earth.
6.2 Drive installation
Requirements during installation and operation:
• Avoid vibration.
• Protect the drive from pollutants.
• Avoid ambient temperatures below –10°C and above +40°C.
• The heat dissipation of the drive is 11 W at rated current. Ensure there is an
adequate supply of clean cool air to ventilate the unit and the enclosure it is
mounted in.
6.2.1 Electrical installation
WARNING!
PERSONAL INJURY AND/OR
EQUIPMENT DAMAGE HAZARD
Never work on any control equipment without rst isolating all power supplies
from the equipment.
Protection must be provided by a correctly rated semi-conductor fuse, tted
upstream of the drive. The fuse must have an I2t rating of less than 50 A2s at
the applied supply voltage. Refer to page 11 for recommended fuse and fuse
holder.
The built-in line fuse is rated at 6.3 A HRC ceramic. DO NOT replace with a glass-
fuse type.
Control cable 1.5 mm2
External control
options:
Speed setpoint from external 10K
potentiometer *
External RUN contact (Terminal 5)
for electronic STOP/START
* Potentiometer, graduated dial and knob - Sprint Electric part number: POTKIT
EMC wiring: If the unit is to be used in the domestic environment, then for installations in
the EU a supply lter is recommended in order to comply with EN6800-3. Sprint Electric part
number: FRLN16.
5Installation

TERMINAL LISTING - tightening torque: 0.5 Nm (4.4 lbf.in)
1+10 +10 V output, 2 mA maximum. Use a 10K
potentiometer for external speed reference. cw.
A+ Motor armature +
2MIN Minimum Speed: connect to minimum end
of internal speed potentiometer 10K preset to
common. acw.
A- Motor armature –
3IP Speed Input: 0 to +10 V speed input from the
potentiometer wiper. It has a 39K internal pull-
down resistor.
F- * Motor eld –
For half wave eld Volts 0.45 x
AC, connect eld to F– and N.
4COM Common. 0 V (zero). F+ * Motor eld +
5RUN Internal 12K pull-up resistor to +10 V.
Open to stop; close to COMMON to run. See the
WARNING below. Reset release time 0.1 to 0.5 s.
NNEUTRAL/RETURN : AC supply
6TACH When using Tach feedback, the tach
feedback polarity must be negative with respect
to COMMON, Terminal 4.
LLIVE : AC supply
*
No connection required for permanent magnet motors.
L1/L2/L3, A+/A- Use correctly rated cable - minimum 600 Vac, 1.5 x armature current
DANGER!
ELECTRIC
SHOCK
HAZARD
MOTOR
ARMATURE
MOTOR
FIELD
AC SUPPLY
10K
semi-
conductor
fuse
1
+10
2
MIN
3
I/P
4
COM
5
RUN
6
TAC
A+
A-
F-
F+
N
L
-ve+ve TG
(optional)
cw
WARNING!
PERSONAL INJURY HAZARD
Terminals A+, A-, F-, F+, N & L are at high potential.
Do not touch the terminals or any connected conductor.
RUN is an electronic inhibit function. The eld remains energised, and all power
terminals ‘live’. During hazardous operations remove the power source to the
system. RUN must not be relied on to ensure the machine is stationary.
The motor FIELD output remains energised with RUN open, please beware of
overheating the motor when stopped (does not apply to permanent magnet
motors).
Figure 4 Terminal connections
Earthing: All control inputs to the drive are NON-ISOLATED. Do not connect any of the
terminals to earth or to other non-isolated equipment. A common cause of damage is
accidental earthing of the external potentiometer or RUN contact wiring.
6Installation

WARNING!
When power is applied
to the drive, ALWAYS use
an insulated tool when
adjusting the presets.
MAX
SPEED
MIN
SPEED
RAMP
IR COMP
CURRENT
Maximum current: rotate clockwise to increase current limit.
0 to 100% current limit (0 to 3.7A).
IR compensation: rotate clockwise to increase level of armature voltage droop
compensation. 0 to 25%. Excessive rotation may cause instability. Always set
fully anti-clockwise in Tacho mode.
Ramp: Rotate clockwise for a faster response. 20 to 1 seconds up ramp rate.
* Minimum speed: rotate clockwise to increase minimum speed.
0 to 30% of maximum speed.
ON: Power is present when lit.
Maximum speed: rotate clockwise to increase speed, 90 V to 200 V
(armature or tach feedback Volts).
LV model has Avf range 24 V to 48 V.
*
Assumes using
a 10K speed
reference
potentiometer
ANTI-CLOCKWISE MID-WAY CLOCKWISE
TRANSFORMER
Link these two pads (on
solder side) for optimum
performance when using
a 60 Hz supply
R32 Tacho range scaling
See table on page 10
R32
R1
R1 Armature Voltage
Feedback range scaling
Change R1 to 180 kΩfor
AVF range of 45 to 100 V
SUPPLY
SELECT
110
LV
60
LV
30
240
FUSE
6.3A
MIN
SPEED
RAMP
IR COMP
CURRENT
Jumper
must
match
supply
MAX
SPEED
ON
The suggested Commissioning
strategy starts in the safest
possible mode of operation and
progressively exercises each
element of the system to
achieve full functionality.
USER ADJUSTMENTS
Figure 5 User adjustments
7Installation

77 CommissioningCommissioning
7.1 Initial settings - without power
1. To avoid damage, ensure the supply selection jumper on the
drive matches the incoming ac supply: 240 Vac or 110 Vac,
(60 Vac or 30 Vac for LV models).
2. With the unit on the work bench, set the CURRENT preset to match
the motor armature current rating as closely as possible:
• fully anti-clockwise = 0%
• fully clockwise = 100% of the drive rating, i.e. 3.7 A.
For example, to adjust the preset for a motor with an armature current rating
of 1.85 A, set it to 50%. Use a suitable current meter temporarily connected in
series with the armature to achieve accurate settings.
3. Set MAX SPEED, MIN SPEED, RAMP and IR COMP presets to fully anti-clockwise.
4. The preferred strategy for initial commissioning is to use armature voltage feedback
(AVF). The drive's default setting is to use armature voltage feedback. (Temporarily
remove any tachogenerator connection made to Terminal 6. Make the wire end safe
until later).
• Resistor R1 scales the armature voltage. Depending on what armature voltage
is needed at full speed, R1 is 510K (as tted) for AVF 90 to 200 V or change R1 to
180K for AVF 45 to 100 V. Refer to "Figure 5 User adjustments" on page 7.
DO NOT use armature voltage feedback and a tachogenerator at the same time:
• When using armature voltage feedback, DO NOT t the TACH connection (T6).
• When using tacho feedback, ALWAYS remove resistor R1.
SUPPLY
SELECT
110
LV
60
LV
30
240
7.2 Pre-operation motor check list
5. With no power applied, complete the following check list:
• Check for the correct insulation between individual motor elements, and between
these elements and the earthed motor frame. Disconnect all drive cables before
testing. The motor elements are: armature winding, eld winding*, temperature
sensors*, tachogenerator* (* where applicable).
• Check inside the motor connection box for foreign objects, damaged terminals etc.
• Check that motor brushes are in good condition, correctly seated and free to move in
brush boxes. Check for the correct action of brush springs.
• Check that motor vents are free of any obstruction and that any protective covers
have been removed.
WARNING!
PERSONAL INJURY HAZARD
This product is non-isolated and so, when power is applied to the drive, ALL
terminals are at dangerous line potential.
Ensure that connected items (e.g. speed potentiometer, Tacho etc.) are NOT
earthed, and have sucient dielectric strength to avoid breakdown.
8Commissioning

7.3 Operating the drive
CAUTION!
When reversing the system: To prevent damage, do not transpose the
motor armature connections until the motor has stopped rotating.
6. For this initial start, disconnect and insulate the (optional) Tacho connection to
Terminal 6 as the drive will be using Armature Voltage feedback.
7. Apply power to the drive. The drive's power lamp (ON) will light.
8. Close RUN to Enable operation.
9. Slowly increase the external speed potentiometer setting to maximum. The motor will
ramp up slowly to about 90 V on the motor armature (to about 25 V for LV units).
10. Is the motor turning in the required direction? If not, reverse the system by
transposing the A+ and A- motor armature connections.
The drive is now commissioned to use Armature Voltage feedback.
WARNING!
PERSONAL INJURY HAZARD
RUN is an electronic inhibit function. The eld remains energised, and all
power terminals ‘live’. During hazardous operations remove the power source
to the system. RUN must not be relied on to ensure the machine is stationary.
The motor FIELD output remains energised with RUN open, please beware of
overheating the motor when stopped - this does not apply to permanent magnet
motors.
11. MAX SPEED Set the speed potentiometer to maximum. The drive will ramp up to full
speed. Adjust the MAX SPEED preset as required. DO NOT exceed the armature voltage
rating.
NOTE: If the DC motor rated armature volts is 90 V, operating from a nominal 110 Vac
supply, it may be necessary to change R1 to 180K.
12. MIN SPEED Set the speed potentiometer to minimum. The drive will coast down to
zero. Adjust the MAX SPEED preset as required. The Min spd potentiometer can now
adjust between 0% and 30%. (This assumes that a 10K potentiometer is being used to
provide the speed setpoint at terminal 1, 2 and 3.)
13. RAMP Set the ramp up rate as required (from 20 seconds to 1 second).
14. IR COMP Speed droop on heavy loads may occur where armature voltage feedback is
used. Compensate for this by clockwise adjustment of the IR COMP preset. Excessive
rotation may lead to instability.
9Commissioning

88 OptionsOptions
• Speed Feedback selection: If the system is to use Tacho feedback you can now adjust
for the tachogenerator's output voltage, and hence the speed of the motor.
Run the drive in Armature Voltage feedback mode and check the polarity of the
tacho using a voltmeter. The tacho feedback polarity must be negative with respect to
COMMON, Terminal 4.
• Jogging: We recommend using the RUN input (Terminal 5) for stopping or jogging. If you
use a mains contactor, connect a spare normally-open contact of the contactor in series
with the RUN input.
For frequent stopping or jogging it is not good practice to rely on switching the
supply off and on to stop and start with the run contact permanently closed. This
can result in an uncontrolled current pulse for one half mains cycle under certain
conditions. For example, main contact bounce. This might lead to undesired motor
movement or device damage. Use a spare NO contact on the main supply contactor
in series with T5 and any other RUN contacts in rapid start-stop applications.
• Terminal 6 (TAC) has an alternative use when using armature voltage feedback:
As an auxiliary speed input - it acts as an arithmetic summing junction with the
main setpoint and has a strength of approximately 5% (+/-10 V input gives +/-5%
speed change). This input bypasses the setpoint ramp stage and has a fast response.
As an auxiliary speed trim - it acts as an auxiliary fast ± speed trim (approximately
5-10%).
NOTE: IR COMP must not be used with Tacho feedback - set the potentiometer
fully anti-clockwise.
a. To use Tacho feedback (Terminal 6), remove resistor R1 from the board -
refer to "Figure 5 User adjustments" on page 7.
b. If necessary, change the value of resistor R32 to accomodate the tacho voltage at
full speed:
Full speed tacho voltage Value of R32
110 to 270 V 1 MΩ - tted as standard
55 to 135 V 500 kΩ (1 MΩ soldered in parallel with R32)
22 to 67 V 250 kΩ (330 kΩ soldered in parallel with R32)
10 to 25 V 91 kΩ (100 kΩ soldered in parallel with R32)
10 Options

©2022, Sprint Electric. All rights reserved.
We accept no liability whatsoever for the installation,
fi tness for purpose or application of this product.
It is the user’s responsibility to ensure the unit is
correctly used and installed.
This leafl et is protected by copyright. No part of it may
be stored or reproduced in any form without written
permission from Sprint Electric.
The information in this publication was correct at the
time of going to print.
We reserve the right to modify or improve the product
without notifi cation.
The contents of this manual shall not become part of
or modify any prior existing agreement, commitment,
or relationship. The sales contract contains the entire
obligation of Sprint Electric. The warranty contained in
the contract between the parties is the sole warranty of
Sprint Electric. Any statements contained herein do not
create new warranties or modify the existing warranty.
We will be under no liability for any defect arising from
fair wear and tear, negligence, wilful damage, misuse,
abnormal working conditions, failure to follow the
manufacturer’s instructions, unauthorised alteration or
repair of hardware, unauthorised or accidental alteration
of software or confi guration, lost profi ts, commercial
loss, economic loss, or loss arising from personal injury.
We may, at our discretion, raise a charge for any faults
repaired that fall outside the warranty cover.
Sprint Electric Limited, Peregrine House, Ford Lane, Ford, Arundel BN18 0DF, U.K.
Tel: [phone] Fax:[phone] Email: [email protected]
www.sprint-electric.com
RATINGS
Drive
model
AC supply input
1 ph 50 or 60 Hz
Maximum output Power
rating
Armature voltage Armature
current
Field
current **
(Vac ±10%) (Vdc) (Adc) (Adc max) (kW / hp)
370
370 LV60
90-120 or
200-264
25-35 or
50-70
90–180 (200 V max)
24–48 (50 V max)
3.7
3.7
0.5
0.5
0.55 / 0.75
*
kW / hp ratings are for typical motor ratings at or below the available terminal ratings of
Watts = armature Volts x armature Amps.
* Note that the power output of LV versions will be proportionately lower than is shown above.
** Volts DC = 0.9 x AC supply Volts (0.45 x AC supply Volts for eld connected to F- and N)
A+ / A- motor armature terminals have Form Factor typically 1.5 (load dependent).
99 SpecicationsSpecications
All specications in this document are nominal.
FUSE - Class aR Series semiconductor - tted upstream of the drive
Drive model Drive rating Fuse rating Sprint part number Clearing I2t
370 3.7 A 8 A CH00608A 35 A2s
6 x 32 mm Panel-mount fuse holder - CP102071; DIN rail clip for fuse holder - FE101969