Lenze 7812 Parts list manual

ET46/fa checked: 19.04.89 ~I4B 33.0831 GB page: 1
Table of conterits page
1. Features 2
2. Specifications 2
3. Conriecting diagram 3
4. Installation instructions 4
5. Conriectirig instructions 4
5.1 External set-value adjustment 4
5.1.1 Using poteritioxrieter 4
5.1.2 Using master voltage 4
5.1.3 Using current loop control 4
5.2 Controllerinhibit 5
5.3 Reversing and brakirig 5
5.4 Selectiori of tixed frequencies (speeds) 6
5.5 External temperature switch 7
5.6 External TRIP reset 7
5.7 Switching of the acceleration and deceleration ramp 7
5.8 Standstill iridication 8
5.9 ‚Identical freguency“ indication 8
5.10 Overload indication 9
5.11 TRIP relay 9
5.12 Frequencyoutput 10
5.13 I4ains connection 10
5.14 Motor connection 11
5.15 Connection of braking resistor(s) 11
6. Display and operating panel 12
7. Modification of factory-set paraineters 13
7.1 Keyboard operation 13
7.2 Furiotion code 14
7.3 Description of the function code 15
8. Fault diagnosis 27
9. Dimensionsand weights 28
10. Mains chokes 29
11. Semiconductor fuses and fuse holders 30
12. Braking resistors 31
?.ad%o i::terfe~er~ce suD~‘reE:i1Qn 32
:bers
1;ems supp1i~ Ii
32

ET4 6/fa checked: 19.04.89 ~MB 33.0831 GB
page: 2
The Lenze inverter series 7800 comprises 8 frequency inverters for
standard three-phasemotors of powers from 2.0 to 20 kW.
1. Features
- Sinusaidal pulse width inodulation
- Isolated contro3. inputs
- Contro3. either externally or via keyboard
- Power outputs are short— and earth-circuit protected
- Set-value integrator with separately prograininable
acceleration and deceleration ramp
- U/f control
- Fault indication system including TRIP indication
- Tntegrated braking chopper
- Reversirig
- Preselection of 4 fixed speeds
- Option boards can be retrofitted
2. Specifications
Ty~e O.vtput
power
Output
voltage
Mains
vottage
50-60
Hz
Hains
current
at norn.
power
Nomin.
motor
power
Power
Loss
at 1=1
f=5OHz
Nca~in.
current
Maxin~j¶~
current
Output
frec~~ency
maxifrLrn
ma ter
vo?t age!
master
current
Ant~ient
teape-
rature
iL7~W
Dimensions
H x L X 0
ljeight
S /kVA
et
U /V
phase
U/ -
mains
/V
hA
eff
p /kW
N
Pv/w 1 IA 1 /A
max
f/Hz ULN/V
7811 3.3
0 ..
lJ 3
3x340 .
505V
4-Q%
4 2.0 100 5 7.5
0.5 ...
360Hz
0. .+/-10V
4 ..20 rnA
0 ...
400C
~3~x240x235
•430x240x2.35
10 kg
430x240x235
10.5 kg
430x240x235
11kg
480x280x235
16 kg
480x280x235
18.5 kg
565x280x235
20.5 kg
565X280X235
21.5 kg
8.5 7&12 5.6 7.5 3.7 180
112
118
1
13
7813 8 10.5 5.5 270 18
7814 12 16.5 7.5 360 27
7815 15 21.5 11 510 23 35
2 ...
240 Hz
7816 19 27.5 14 640 29 44
7817 24 35 17 760 37 55
7818 28 41 20 8.60 43 64

ET4 6/fa checked:
19.04.89 33.0831 GB
page: 3
3. Connecting diagram
Control stage
potentio~eter
Lmnaster voltage 0 to +10V
or 0 to
10V at teni-~inal 11 —
to terDlirlal 11
reversing (S1) brake (S2)
Power stage
muains choke
s~~ccndu~ztor
*
cable protectingtuse
- UG
overload
~nomina). = ~actuai
standstill
externaj. TRIP reset
external TRiP set
controller inhibit RSP
Tir/Tif extension
external speed
set value
external speed
set value
thret~—ph~se
I~otcr
TRIP
contact
capacity
250 V/2A-
speed set value __
sigriaj. current 4 to 2OmA
special
accessories

ET46/fa checked: 19.04.89 ~4B 33.0831 GB page: 4
4. Installation instructions
The controller should be fitted vertically with the terminals located
at the bottom. Ensure that there is a free space of
± :LOOin~ at the top and bottain, and 50 mm at the sides in order to
inaintain the flow of air tI~xrough the heat sink and controller. The
maxrmmm ambient temperature must not exceed 400C.
In case of an earth circuit fault, the mains choke limits the current
rise and improves the ~nains current factor. The 7800 inverter series
inust only be operated with specif led mains choke and sexni-conductor
fuses (see paint 10./il.).
5. Connectinc~ instructions
5..l External set—value
5..l.1 Usinc~ potentioxneter
(-) +10V
— Corrnect the enclosed
potentiometer 1 kfl linear
(part no..: 304 651) to
terminals 11, 12, 13,
ensuring that the wiper
of the potentiometer is
connected to l2~
5.1.2
— Connect the external master voltage
source to terminals 11 and 12.
Umaster max = 10 V
— For amaster voltage
of 0 to—lOV the wire link ~
UmastermaxiOV must be connected as
shown in the figure.
5..l..3 Usinq~ current loop control ~f~B3Ocf12
— Connect the external current source
between terminals 11 and Cl.
‚master = 4~- 20mA
- For giving speed control froln
a 0 to 2OmA current signal, ensure
that a 511 fl resistor
(‚-x=~t ;o. 225 ?D2) is c~nm-.ccted
— -~ —.
master

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checked: 19.04.89 IB 33.0831 GB
5.2 Controller inhibit
— The controller is inhibited when
the RSP switch is closed.
— The controller is releasedwhen
the RSP switch is operied.
RSP
S7
USe low—current contacts
(12V/lOinA)
5.3 Reversincr and braking
- Clockwise rotation occurs with
switch 51 in FWD position,
assuming correct phase connection
of the motor
— Ariti-clockwise rotation occurs
with switch 51 in REV position
assulning correct phase connection
of the motor
— Braking occurs when switch
S2 is opened
Use low-current contacts
(12V/lOxnA)
FWD
SI
Qn
on
- - —i-----I------- —~--t
-‚Pn
REV k
si ~ fon
brakej 1
S2 ____ __________
T -~
II
~set ~‚~N‘c1ockw~se
, —‚
-1-
During reversal, the drive is
slowed down according to the
deceleration raxop, reverses at
n set- 0,5Hz and then
acceierates to the speed set—
value alcing the acceleration
ramp.
~-2~3rl th& ~wi~ch S2 is openec~,
— t~ ci~:fy~ is s.owed down
--~L..1¶ ~
-~ - s~. ~Q~U1J! accoroing
~ tI--~ v~1ue set c:~ thr.
Reversing
s1
~ti-clockwise

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5..4 Selection of fixed rotational field frecmencies
T
CMIX1 X2 Jogj
S3 S4 S5
Use bwcurrent
contacts (12V/lOmA)
xl
S3
lt
- lt all 3 switches are opened,
the drive is operated by the
set—value potentiometer,
master voltage, master current
or the internal setting.
- lt either Xl or X2 or both
terminals are connected to CM,
a constant prograiiuuable
f leid frequency is generated.
- In addition to this, lt the
terminal marked „JOG“, is
connected to CM, a tourth
progra~medfreq~uency is generated,
taking precedence over all
other preset frequencies. Four
different fixedspeeds can
therefore be selected
via simple switching action.
~~~1
f. 11
X2
S4
Jog
$5
„set
D3
tD2
~D1
~D set
D 4
t
— t

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checked: 19.04.89 MB 33.0831 GB
5.5 External teniperature switch
Use low-current
contacts (12V/lOmA)
- Temperature swltches can be
connected to the terminal
muarked THIR, in order to supervise
the motor temperature or monitor
the temperature of the external
braking chopper resistors.
As soon as the contact is opened,
the inverter switches to show a
fault condition. (This f1lnction is
selt holding).
The display shows code OLl.
5.6 Bxternal TRIP reset
T
- RST can be used to provide
an external TRIP reset.
CMjRSTj
switch
59
Use low-current
contacts (12V/lOmA)
5.7 Switchinq- of the accelerationand deceleration ramp
- Using the terminal marked „Saft“
a second common acceleration and
deceleration time can be used.
S6
Use low—current
contacts (12V/lOm.A)
So!
k _______
page: 7
79.
S8
1‘

ET4 6/fa checked: 19.04.8>t~/~14B 33.0831 GB
page: 8
5.8 Standstill indication
— The open collector transistor used tor
the standstill lndication function opens,
when, during the deceleration phase,
the pre—programmed frequency is reached.
The transistor remains open, until
the trequency f = 0Hz Is attained.
The minimum swltch-on tiine of the
transistor is lOOms.
‚max =5OmA
Umax =27V
5.9 ~Identical frecruency“ indication
‚max
Umax =27V
- The Open-Ccllector transistor
for the „frequency identical“
indication switches, when a programmed
freguency of the acceleration and
deceleration phase is reached.
The transistor is eriabled, until
the rotational field freguency is
identical with the compared treguericy
or the acceleration/deceleration
phase is not yet finished. The
minimum switching tlme of the
transistor Is lOOms.
(The signal can be used e.g. tor
switching ot the aoceleratlon/
deceleration ramp).
Compared frequency
- re. uer~cy
a~reemer~1
s~ ing
1 \ §S
1 .—
SAR O~ O~. O~ 0 ON O.~
tOO.~c ~O0~‘mc
SST
-= lOOms
< lOOms t3
> lOOms
~m~ 1OOfV~sec

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page: 9
5.10 Qverload indication
‚max SOmA
Umax =27V
OL
- The open collector transistorused
tor the overload indication is enabled
in case of an overload which is
langer than 10 sec, and remains in
this state as long as there is an
overload.It is disabled one second
after the unload.
The threshold of the overload
indication can be changed by
subseguent programming ot the device.
5.11 TRIP relav
- lt the inverter switches to show a
fault condition, the TRIP relay
is activated. The contact switches
from 30B to 30A.
F
[3oA13 OB 1300
Coritact capacity
250V/2A-