Sprint Electric 340i User manual

Model 340i / 680i / 1220i DC drive product manual HG102938 iss 8 1
This drive is an isolated 1 Quadrant speed controller for shunt wound or permanent magnet motors. It utilises
speed feedback from the armature voltage (Avf), or from a shaft mounted tachogenerator. It incorporates a
fully controlled thyristor bridge with a current loop to protect the drive and motor. It can be used in speed or
current control modes.The drive can motor forward and will regenerate for reverse rotation by an external
force. Please obtain expert help if you are not qualified to install this equipment. Make safety a priority. This
component is hazardous. (All specifications in this document are nominal).
340i 0.55KW (0.5 HP) at 180 Volts DC, 3.4 Amps
680i 0.75KW (1.0 HP) at 180 Volts DC, 6.8 Amps
1220i 1.80KW (2.0 HP) at 180 Volts DC, 12.2 Amps
Versions that work from 60V / 30V AC supply are also available.
340i / LV60, 680i / LV60, 1220i / LV60. For motors rated up to 48V DC
Armature: 200 Volts DC. or 50V DC for LV60 models
Models 340i / 680i /1220i --- 3.4/ 6.8/ 12.2 Amps.
Field: Volts DC= 0.9 x AC supply volts. 1 Amp
(0.45 x AC for field connected to F- and N). 1 Amp.
110V AC or 240V AC +/-10%, 50–60 Hz.
30V AC or 60V AC +/-10%, 50-60Hz for LV60 models.
Speed range 0–100%. (motor dependant)
Load Regulation typically 0.2% tach, 2% Arm Volts.
Presets accessible under lift up cover.
Clockwise rotation for linear increase in parameter.
Relay driver threshold (Level) +/-(0.5% to 105%). (+/-10.5V) Symmetrical about zero.
Maximum Speed (Max spd) 40V-200V span with Spd x 2 switch. (Avf/Tach fb volts)
LV60 models have an Avf range 10 - 50V.
Minimum Speed (Min spd) 0 to 30% of maximum speed. (With 10K external pot).
Up Ramp (Ramp ) 20 to 1 seconds up ramp rate. (For 0 to +10V)
Down Ramp (Ramp ) 20 to 1 seconds down ramp rate (For +10 to 0V)
Stability (Stab) Gain 1 to 10
Maximum Current (I max) 0 to 100% current limit.
IR compensation (IR comp) 0 to 25%
Speed setpoint from external 10K Ohms pot.
External RUN contact for electronic STOP/START.
Built in functions are +/- channel with pushbutton control inputs, and relay driver with variable
threshold. There is a pot kit available with graduated dial and knob. Sprint Electric part ref. POTKIT.
Speed loop: Full P+I armature voltage or tach feedback.
Current loop: Full P+I isolated current feedback.
Use correctly rated cable minimum 600V AC, 1.5 times
armature current.
DOC# HG102938 iss 8 17/06/05
Sprint Electric Limited, Arundel, UK
Tel. [phone]
Fax. [phone]
Email. [email protected]
www.sprint-electric.com
MAXIMUM OUTPUT
AC SUPPLY INPUT
SPEED RANGE
USER ADJUSTMENTS
EXTERNAL CONTROLS
CONTROL ACTION
INSTALLATION
POWER RATING

2 Model 340i / 680i / 1220i DC drive product manual
Sprint Electric semi-conductor fuse parts.
20A fuse 6 X 32 CH00620A
Fuseholder 6 X 32 CP102071
DIN rail clip for fuseholder FE101969
Suitable for use on a circuit capable of delivering not more than 5000A RMS symmetrical amperes when protected by an Ar class fuse.
WARNING The drive can only be protected by fitting an external
AC supply semi-conductor fuse with an I2t rating below 150 A2s.
Control signals are isolated from the supply, and the unit may be
connected to other isolated instruments.
The unit is designed to clip onto a DIN rail. Avoid vibration and
ambient temperatures outside –10 and +40C. Protect
the unit from pollutants. Ensure there is an adequate supply of clean cool air to ventilate the unit
and the enclosure it is mounted in. (Dissipation in Watts = 5 x Armature Amps).
Foot mounted motors must be level and secure. Protect motors
from ingress of foreign matter during installation. Ensure
accurate alignment of motor shaft with couplings. Do not hammer pulleys or couplings onto the
motor shaft.
Before running motor, complete the following check list. (Warning isolate the supply first).
1) Correct insulation between all motor windings and earth. Disconnect all drive cables.
2) Check inside connection box for foreign objects, damaged terminals etc.
3) Check that brushes are in good condition, correctly seated and free to move in brush
boxes. Check correct action of brush springs.
4) Motor vents must be freed of any obstruction or protective covers prior to running.
To avoid damage, ensure the supply selection jumper on the
drive matches the incoming supply. 110V or 240V AC.
FormodelswithLV60suffix30VACor60VAC.
Set the I max (Max Current) preset to approximately match the
motor armature rating. Fully clockwise is 100% drive
rating. (340i 3.4A, 680i 6.8A, 1220i 12.2A). Fully anticlockwise is 0%. E. g. for a 340i unit a
midway setting is 50% i.e. 1.7A. More accurate setting requires a suitable current meter in series
with the armature. Set the Stab preset midway. (Clockwise rotation of the stab preset increases
gain, excessive rotation may lead to instability). Set all the other presets anticlockwise to start off
with. (Note LV60 models avf range 25%)
The preferred strategy for initial commissioning is in armature voltage feedback mode described as
follows. Set Avf/Tach switch ON (left) for armature voltage feedback (Avf) and Spd x 2 switch OFF
(right) for 40V max feedback. For systems utilising tach feedback, remove the terminal 11 tach
connection and temporarily make wire end safe until later.
Check that the Power lamp lights.
Increase the external speed pot slowly to maximum.
The motor should slowly ramp up to around 40V on the
motor armature. Now set the correct 100% armature voltage and hence speed by using the Spd x
2switch (ON (left) for speed X 2) and the Max spd preset (Clockwise to increase speed). Note, if
you change the Spd x 2 switch position whilst running, the speed will undergo an immediate step
change.
FUSING REQUIREMENT
CONTROL SIGNALS
MECHANICAL
MOTOR
AC SUPPLY
PRESET POT settings
POWER ON

Model 340i / 680i / 1220i DC drive product manual HG102938 iss 8 3
The up / down ramps can now be set between 20 and 1
seconds, and the Min spd adjusted up to 30%.
(Note, down ramp becomes up ramp for negative input).
Speed droop on heavy loads may occur when armature voltage
feedback is used. This is compensated for by
clockwise rotation of IR comp. Excessive rotation may lead to instability.
Note, IR comp is not used with tach feedback, leave preset anticlockwise.
The tach feedback signal on terminal 11 must be negative with
respect to terminal 10 COMMON.
Whilst still in AVF mode measure the tach volts on the wire intended for T11 when running at
100% speed. (Warning, possible high voltage). This is the tach full speed voltage. Make a note of it
to assist in selecting the speed range. Stop the motor and turn off the supply.
Set Avf/Tach switch OFF (right). Adjust the Max spd preset anti-clockwise. (With Spd x 2 switch
OFF (right) maximum speed range = 40 to 100V. With Spd x 2 switch ON (left) the maximum
speed range = 80 to 200V). Re-connect the tach wire to T11, re-start and adjust Max spd as
required.
WARNING. A+, A-, F-, F+, N, L, are at high potential.
DO NOT TOUCH the terminals or any connected conductor
1 +10V output. 10mA max. (Use a 10K Ohm pot for external speed reference).
2 MIN Speed. 5K Ohms preset to COM. (Connect to minimum end of speed pot).
3 IP. Speed input to ramp. 0 to 10V from speed pot wiper. 47K internal pull down.
4 OP+/-. (+/-10.5V range). 10mA max. T6 is the input for this function. Invert with T8
PB- input open. Non-invert with T7 PB+ open and T8 PB- connected to T5 COM. (This
function may be used to buffer or invert system signals).
5 COM. Common. (0 Volts)
6 IP+/-. Input to pushbutton controlled +/- signal channel. OP on T4. 50K Ohms.
Note. This channel can invert input signals in the range +/-10.5V. It can also buffer (i.e.
non-invert) signals in the range 0V to +10.5V. (It cannot buffer negative signals. If you
try to buffer negative signals the output swings positive).
7 PB+ Pushbutton input. 47K Ohm pull up to +12V. Connect to T5 COM. Latches T4 to
buffer (non-invert) positive T6 signals when opened, provided T8 PB- is connected to T5
COM.
8 PB- Pushbutton input. 47K Ohm pull up to +12V. Connect to T5 COM. Latches T4 to
invert T6 when opened. T7 PB+ may be open or connected to T5 COM.
9 RUN. Internal 12K pull up to +12V. Open to reset, close to T5 COM to run. WARNING.
RUN is an electronic inhibit function. The field remains energised, and all power terminals
‘live’. RUN must not be relied on during hazardous operations.
10 COM. Common. (0 Volts)
11 TACH input. The tach voltage must be negative on T11. 1.5 MOhms.
12 RLOP. Relay driver output. +10V active high at 10mA. Flywheel diode to COM.
13 RLIP. Relay driver input. Accepts 0 to +/-10.5V signal inputs. The threshold to activate
the relay driver is symmetrical around zero, and set by the Level preset between +/-
0.05V and +/-10.5V. When the T13 input exceeds the positive or negative threshold,
then the T12 RLOP is turned ON. Typical uses include zero speed detector, zero current
detector, stall detector etc. The input will accept any output from other terminals. 50K
Ohm pull down to COM.
RAMP and MIN SPEED
IR COMP
TACH FEEDBACK
TERMINAL LISTING

4 Model 340i / 680i / 1220i DC drive product manual
14 OVLD. Overload. +10V active high at 10mA if the current demand exceeds 100%.
Latches high if the stall timer eventually times out.
15 TRIP. Latched +10V active high at 10mA for either stall OR fan alarm tripped.
16 ROP. Ramp output. 0 to +/-10V output for 0 to +/-10V input. 1K Ohm output.
17 DEM. Demand output. 0 to -/+10V output for 0 to +/-100% speed demand. 1K Ohm
output impedance. Represents the inverted total speed demand.
18 SOP. Speed output. 0 to +10V for 0 to 100%. 1K Ohm output impedance.
19 IOP. Current output. 0 to +5V output for 0 to 100% armature current. Maximum output
+7.5V for 150% current. 1K Ohm output impedance.
20 SPD. Direct speed input fast response. Input impedance 100K. This signal is summed
with T3 ramped reference. 0 to +/-10V input for 0 to +/-100%.
21 TRQ. Torque input. 100K Ohms pull up to +12V. 0 to +7.5V for 0 to 150% current
(torque) demand. This input acts as an upper clamp on the current demand output
produced by the speed loop. It controls torque by clamping the demand amplitude. The
total input speed demand must require current higher than this clamp level will allow.
Conversely, if the speed loop current demand falls below this clamp level, the speed loop
will regain control.
A+ Motor armature + Form Factor typically 1.5. (Load dependant)
A- Motor armature -
F- Motor Field – (No connection required for permanent magnet motors).
F+ Motor Field +(For half wave field volts 0.45 X AC, connect field to F- and N).
N AC supply. 110V AC or 240V AC +/-10%, 50–60 Hz. (30/60VAC for type LV60)
L AC supply. 110V AC or 240V AC +/-10%, 50–60 Hz. (30/60VAC for type LV60)
Terminal tightening torques A+ A- F- F+ N L 4.4in lb - 0.50Nm
Terminals 1 to 21 2.2in lb - 0.25Nm
Models 680i and 1220i use an internal fan for cooling. The
Alarm lamp will come ON and the drive will electronically shut
down if the internal fan fails. The field will remain energised,
hence if the machine is to be left unattended for long periods it may cause the field to overheat.
(T15 TRIP alarm output available).
All models possess a STALL TIMER. This starts to integrate when the current demand exceeds
100%. A continuous demand of 150% will take 30 seconds to saturate the timer integrator and
trip the drive into shut down. Overload profiles at lower levels will take longer to trip. A STALL
TRIP is indicated when the Stall lamp is latched on and the drive is shut down by the alarm. The
LAMP gets progressively brighter as the stall integrator fills up prior to tripping. (T15 TRIP alarm
output available and T14 OVLD also latches high).
For frequent stopping or jogging it is recommended to use T9
RUN input. When using a mains contactor, connect a spare
Normally Open contact from the contactor in series with T9 RUN input.
ALARMS
JOGGING

Model 340i / 680i / 1220i DC drive product manual HG102938 iss 8 5
The product is enclosed in a stylish DIN rail mounted enclosure
with plug in screw terminal connections.
Height Width Depth
340i 105 60 120
680i 105 70 120
1220i 105 70 120
Earthing A clean signal earth
Connection should be made to
Terminal 10 (Common). The motor
earth should be connected to the
earth in the system enclosure.
This is available at
www.sprint-electric.com ‘Downloads’, ‘Technical Data’.
If the unit is to be used in the domestic environment, then for installations in the EU a supply filter
is recommended in order to comply with EN6800-3. Sprint Electric part number FRLN16. For EU
EMC compliance guidelines refer to the above website.
Health and safety at work. Electrical devices constitute a
safety hazard. It is the responsibility of
the user to ensure compliance with any acts or bylaws in force. Only skilled persons should install
this equipment. Sprint Electric Ltd. does not accept any liability whatsoever for the installation,
fitness for purpose or application of its products. It is the users responsibility to ensure the unit is
correctly used and installed.
MECHANICAL DETAILS
Supply
Select
Sw1 AVF
Sw2 Spd x 2
Max Speed
Min Speed
Up Ramp
Stability
Max Current
Comparator
Level
p
reset
Lift up cover
Terminals
12 to 21
A+ A- F- F+ N LFan exhaust
For models
680i, 1220i
DIN rail
release catch
with bottom
rear access
slot. (Unplug
terminals to
gain access)
APPLICATIONS GUIDE
WARNINGS
Sprint Electric Limited, Arundel, UK
Tel. [phone]
Fax. [phone]
Email. [email protected]
www.sprint-electric.com
IR Comp
Alarm lamp
Stall lamp
Increasing brightness
for imminent trip.
Power ON lamp
Brighter for positive current.
Down Ramp
Terminals
1 to 11
Armature Field
Basic single direction speed control with tach feedback
1 2 3 5 9 10 11 A+ A- F- F+
10K Pot RUN Tach
Earth