Siemens Simovert P 6SE21 Series User manual

SIMOVERT P 6SE21 Series Inverters
English
Operating Instructions
Siemens plc 1995 G85139–A1615–U156–A
02.95 3
Contents Page
Warning and Caution Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1. DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Control Facilities .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Monitoring Facilities .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4 Motor Characteristics .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4.1 Voltage/Frequency Characteristic .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4.2 Low Frequency Voltage Boost (Ku) .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4.3 Current Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
8
9
9
9
10
10
10
2. TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1 Equipment Ratings Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Cable Lengths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 11
3. MECHANICAL INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4. ELECTRICAL INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1 Mains Input / Motor Connections .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 Control Connections .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 16
5. COMMISSIONING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.1 Preparation for Switch–On .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1.1 Starting and Stopping the Inverter .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1.2 Direction of Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1.3 Jog Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1.4 Speed Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2 First Switch–On .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3 Parameterisation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.1 Changing Parameter Settings .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.2 Parameter Descriptions .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4 Fault Indications .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.5 Fault Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18
18
20
20
20
20
21
21
22
30
31
6. USING CLOSED LOOP SPEED CONTROL .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2 Installation of Control Loop Speed Control .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2.1 Scaling Factor of ‘Actual Speed’ .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2.2 Speed Control Operation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2.3 Speed Control Optimisation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2.4 Slip Limit (P35) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2.5 Sample Rate (P36) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32
32
32
33
33
33
33
7. QUICK REFERENCE GUIDE .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
7.1 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2 Parameter List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3 Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34
35
35

SIMOVERT P 6SE21 Series Inverters
English Operating Instructions
Siemens plc 1995
G85139–A1615–U156–A
02.95
4
Contents (continued) Page
Figures
1 Block Diagram Simovert P 6SE21 .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Voltage/Frequency Characteristic Curves .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Connection Example .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Fault Code Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 Closed Loop Speed Control .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
10
15
17
30
32
Note
These instructions do not purport to cover all details or variations in equipment, nor to provide for every
possible contingency to be met in connection with installation, operation or maintenance.
Should further information be desired or should particular problems arise which are not covered sufficiently
for the Purchaser’s purposes, the matter should be referred to the local Siemens Sales Office.
The contents of this instruction manual shall not become part of or modify any prior or existing agreement,
commitment or relationship. The Sales Contract contains the entire obligations of Siemens. The warranty
contained in the contract between the parties is the sole warranty of Siemens. Any statements contained
herein do not create any new warranties or modify the existing warranty.

SIMOVERT P 6SE21 Series Inverters
English
Operating Instructions
Siemens plc 1995 G85139–A1615–U156–A
02.95 5
Warning and Caution Notes
Thisequipmentcontainshazardousvoltagesandcontrolshazardousrotatingmechanicalparts.Loss
of life, severe personal injury or property damage can result if instructions contained in this manual
are not followed.
Onlysuitablequalifiedpersonnelshouldworkonthisequipment,andonlyafterbecomingfamiliarwith
all safety notices, installation, operation and maintenance procedures contained in this manual. The
successful and safe operation of this equipment is dependent upon its proper handling, installation,
operation and maintenance.
WARNING
Definitions
• Qualified Person
For the purposes of this manual and product labels, a qualified person is one who is familiar with the installation,
construction,operationandmaintenanceofthisequipmentandwiththehazardsinvolved.Inaddition,thepersonmust
be:
(1) Trained and authorised to energise, de–energise, clear, ground and tag circuits and equipment in
accordance with established safety practices.
(2) Trained in the proper care and use of protective equipment in accordance with established safety
practices.
(3) Trained in rendering first aid.
• DANGER
For the purposes of this manual and product labels, DANGER indicates that loss of life, severe personal injury or
substantial property damage WILL result if proper precautions are not taken.
• WARNING
For the purposes of this manual and product labels, WARNING indicates that loss of life, severe personal injury or
substantial property damage CAN result if proper precautions are not taken.
• CAUTION
Forthepurposesofthismanualandproductlabels,CAUTIONindicatesthatminorpersonalinjuryorpropertydamage
CAN result if proper precautions are not taken.
• Note
For the purposes of this manual and product labels, Notes merely call attention to information that is especially
significant in understanding and operating the drive.

SIMOVERT P 6SE21 Series Inverters
English Operating Instructions
Siemens plc 1995
G85139–A1615–U156–A
02.95
6
Hot Line
Siemens operates a telephone ‘hot line’ for users of their 6SE21 range of
inverters. This service is available during normal working hours, Monday to
Friday. If you require assistance, contact our customer support personnel
on the following number:
Tel: [phone]
Fax: [phone]
Please have the following information available before dialling:
• inverter model number
• hardware type (stored in P49)
• software version (stored in P50)

SIMOVERT P 6SE21 Series Inverters
English
Operating Instructions
Siemens plc 1995 G85139–A1615–U156–A
02.95 7
1. DESCRIPTION
SIMOVERT P transistorised voltage–source inverters operate with high voltages.
Connection, commissioning and fault–finding should only be carried out by qualified personnel who
are fully conversant with the relevant documentation, installation regulations, etc.
Only permanently–wired input power connections are allowed. This equipment must be grounded
(IEC 536 Class 1, NEC and other applicable standards).
Safety Note:
Do not apply input power to the equipment when the plastic cover has been removed. Dangerous
voltagesare present within the equipment which could cause serious injury or death if touched. After
removing mains power, always allow a minimum of five minutes for the internal capacitors to
discharge before removing the cover.
When the 3–phase mains input is protected by a current–operated earth–leakage breaker, the input
to the inverter must be isolated from the mains if the earth–leakage breaker is to operate effectively.
Thedc–linkcapacitorsremainchargedtodangerousvoltagesforuptofiveminutesaftertheincoming
power has been switched off.
Whenthemotorisnotrunning,dangerousvoltagesarestillpresentonthepowerinputterminalsAND
motor output terminals and also on the dc–link terminals.
Under certain set–up conditions, the inverter may restart automatically after an input power failure.
WARNING
1.1 Introduction
SIMOVERT P inverters of the 6SE21 series are designed for low–loss speed control of three–phase motors. This is
achieved by rectifying input voltage to establish a dc link voltage, and modulating this link voltage with a three–phase
transistor bridge to produce a Pulse–Width Modulated (PWM) three–phase output voltage (see Figure 1) . The
inductanceofthemotorwindingsconvertsthisPWMvoltagetoasinusoidalmotorcurrent.Byvaryingthefrequencyof
this sinusoidal current, the rotational speed of the motor is controlled without significantly affecting the losses in the
motor. The output frequency can be adjusted between 0 and 400 Hz.

SIMOVERT P 6SE21 Series Inverters
English Operating Instructions
Siemens plc 1995
G85139–A1615–U156–A
02.95
8
Block Diagram – SIMOVERT P 6SE21 Figure 1:
3
M
PWM
SE
PROM
CPU
A/D
D/A
SV
SI
GR
ZK
WR
Run/Stop
0 – 10 V
0 – 20 mA
4 – 20 mA
BUS
+
Power Supply
Mains Fuse(s)
DC Link
Power Supply
Microprocessor
Analog/Digital Converter
Bus Connector
GR Rectifier
WR Inverter
SE Current Monitoring
PWM Pulse Width Modulator
D/A Digital/Analog Converter
R/L Clockwise/Counter–clockwise
Frequency, Current Indicator
Jog
FRONT
PANEL
Fu/Iu
PROM
Fault
Trip
Tacho
Fu/Iu
P
RS485
X11 X1
X1
ZK
CPU
A/D
BUS
+15 V
+10 V
2
3
4
13
6
7
9
12
11
16
17
18
19
20
21
14
15
SI
SV
R/L 5
1.2 Control Facilities
Theinvertercanbestarted/stoppedbyanyofthefollowingmeans (seeparameterP05insection5.3.2andalsoFigure
3)
:
(1) Connection of a latching switch to the run/stop input (terminals X11.2/3).
(2) Applying a rising edge (i.e. momentary push–button) to the Run/Stop input (terminals X11.2/3) and a falling
edge to the trip input terminal X11.2/4.
(3) Connection of a voltage level of 7 – 33 V to the Run/Stop input (terminals X11.3/1).
(4) Automatic starting on application of input power (shorting link terminals X11.2/3).
(5) Connection of a voltage level of 7 – 33 V to the jog input (terminal X11.13/1).
(6) Control via the serial I/O connections.

SIMOVERT P 6SE21 Series Inverters
English
Operating Instructions
Siemens plc 1995 G85139–A1615–U156–A
02.95 9
Theoutputfrequencyoftheinverter,andhencethespeedofthemotor,canbecontrolledbyanyofthefollowingmeans
(see 5.3.2, parameter P04 and also Figure 3) :
(1) Connection of 0–10 V control voltage (terminals X11.7/8).
(2) Connection of a 0–20 mA current loop control input (terminals X11.9/10).
(3) Connection of a 4–20 mA current loop control input (terminals X11.9/10).
(4) Connection of a 5 kΩcontrol potentiometer (terminals X11.6/7/8).
(5) Bydigitalparameterisation viathe push–buttonsfittedto theinverter, orviaequivalent externalpush–buttons
connected to terminals X11.17 and X11.18.
(6) Via the serial I/O connection.
1.3 Monitoring Facilities
The following monitoring facilities are available:
(1) Seven–segment display for output frequency, output current, fault indication or parameterisation. This is
viewed through a window in the cover.
(2) A 0–10 V analogue signal, proportional to output frequency or output current.
(3) A changeover relay, normally energised when the drive is connected to a suitable input supply. The relay is
de–energised when a fault is indicated
(see section 5.5) .
(4) The drive may be interrogated via the serial I/O connection.
1.4 Motor Characteristics
The inverter can be adjusted to suit individual motor characteristics in the ways described in 1.4.1 and 1.4.2.
1.4.1 Voltage/Frequency Characteristic
Six voltage/frequency characteristic curves are available plus one programmable curve (see Figure 2) . They are
intended for the following applications:
Curve 0: VN/50 Hz (constant torque)
For standard 50 Hz induction motors with linear speed/torque characteristics.
Curve 1: VN/60 Hz (constant torque)
For standard 60 Hz induction motors with linear speed/torque characteristics.
Curve 2: VN/87 Hz (constant torque)
For delta–connection of standard induction motors designed for star–connection of 50 Hz input voltage.
This increases the speed range over which constant motor torque can be achieved.
Curve 3: VN/120 Hz (constant torque)
For applications where a constant torque is required over the full operating speed range 0.1 to 120 Hz.
Curve 4*: VN/50 Hz (torque proportional to speed 1.5)
For operation of 50 Hz motors drivingloadswheretorque is proportionalto(speed)1.5. Typicalexamples
of such loads are fans and pumps.
Curve 5*: VN/60 Hz (torque proportional to speed 1.5)
For operation of 60 Hz motors driving loads where torque is proportional to (speed)1.5.
Curve 6*: Programmable
(not shown in Figure 2)
The curve type and corner frequency may be selected by the user.
* Curves4and5allowvariabletorqueoutputcurrentvalues(seesection2.1)tobeloadedintoparameterP17.Curve
6may allow variable torque output currents depending on the user–defined curve specified.

SIMOVERT P 6SE21 Series Inverters
English Operating Instructions
Siemens plc 1995
G85139–A1615–U156–A
02.95
10 
Figure 2: Voltage/Frequency Characteristic Curves
0 10 20 30 40 50 60 70 80 90 100 110 120
10
20
30
40
50
60
70
80
90
100
Voltage
%
Frequency
0
1 2 3
4
5
Boost
Ku
400
1.4.2 Low Frequency Voltage Boost (Ku)
Theoutputvoltagecanbeboostedin0.1%stepsupto30%forlowfrequenciesfrom0Hz.Thismayberequiredtogive
additional starting torque in some applications. The amount of voltage boost decreases linearly until 100% voltage is
achieved.
Ifrequired,automaticboostmaybeused
(seesection5.3.2,ParameterP19) .Thismeasuresthemotorcharacteristics
and selects a suitable boost voltage at first switch–on.
1.4.3 Current Limit
The maximum output current available from the inverter can be adjusted to provide thermal protection of the motor
and/or limit the maximum motor torque (see section 5.3.2, parameters P17 and P18) .
1.5 Options
The following options are available for use with 6SE21 inverters:
Sinewave Filter Module Part No. 6SE2100–1FC51/53/55
NAMUR Interface Module Part No. 6SE2100–1FC50/52/54
Relay Module * Part No. 6SE2100–1GA00
Tachometer Interface Unit * Part No. 6SE2100–1DA00
Clear Text Operator Panel * Part No. 6SE2100–1CA00
*
These options cannot be fitted in combination with each other.

SIMOVERT P 6SE21 Series Inverters
English
Operating Instructions
Siemens plc 1995 G85139–A1615–U156–A
02.95 11
2. TECHNICAL DATA
Rated supply voltage: Models 6SE21**–1AA11
Models 6SE21**–3AA21
** – May be any number
1 AC 50/60 Hz +/–1%, 220 – 240 V +/–10%
3 AC 50/60 Hz +/–1%, 380 – 500 V +/–10%
Output voltage 0 V – rated supply voltage
Output frequency 0.0 – 400 Hz
Efficiency ≥0.94
Motor power factor ≤0.9 lagging/inductive
Ambient operating temperature
(unit must not be exposed to direct sunlight) 0 – 40oC
Storage/transport temperature –30 – +85oC
Degree of protection IP21 (NEMA 1)
Humidity 0 – 95% at 25oC
Frequency stability at Tmax 10oC referred to fmax Analogue setpoint 1%
Digital setpoint 0.01%
Frequency resolution 0.1 Hz
Overload rating 1.5 x rated current for up to 60 seconds
2.1 Equipment Ratings Table
Model
6SE21..
Input
Voltage
Range
Max.
Cont.
Input
Current
Circuit
Breaker
Constant Torque
Output Variable Torque Output **
Variable Torque
Output **
460 V (USA)
Variable Torque
Output **
500 V
Overload
Current
Model
6SE21..
Voltage
Range
Input
Current
Breaker
Continuous
Current Motor Rating * Continuous Current Motor Rating * Continuous Current Motor Rating * Continuous Current Motor Rating *
Current
01–1AA11
198–264 V
1 phase
9.8 A 16.0 A 2.8 A .55 kW 3.9 A .75 kW – – – – 4.2 A
02–1AA11
198–264 V
1 phase
13.5 A 16.0 A 3.9 A .75 kW 4.8 A 1.1 kW – – – – 5.8 A
03–1AA11
1 phase
26.5 A 32.0 A 6.8 A 1.5 kW 10.0 A 2.2 kW – – – – 10.2 A
03–3AA21 5.5 A 10.0 A 4.0 A 1.5 kW 5.5 A 2.2 kW 4.8 A 3 hp 4.8 A 2.2 kW 6.0 A
05–3AA21 10.0 A 16.0 A 7.6 A 3.0 kW 9.5 A 4.0 kW 8.1 A 5 hp 8.1 A 4.0 kW 11.4 A
08–3AA21 17.0 A 20.0 A 12.0 A 5.5 kW 17.0 A 7.5 kW 14.0 A 10 hp 12.0 A 7.5 kW 18.0 A
13–3AA21
342–550 V
3 phase
28.0 A 32.0 A 19.0 A 7.5 kW 23.0 A 11.0 kW 21.0 A 15 hp 19.0 A 11.0 kW 28.5 A
17–3AA21
342–550 V
3 phase
38.0 A 40.0 A 25.0 A 11.0 kW 32.0 A 15.0 kW 27.0 A 20 hp 25.0 A 15.0 kW 37.5 A
22–3AA21 40.0 A 50.0 A 32.0 A 15.0 kW 38.0 A 18.5 kW 34.0 A 25 hp 32.0 A 18.5 kW 48.0 A
27–3AA21 48.0 A 63.0 A 38.0 A 18.5 kW 46.0 A 22.0 kW 40.0 A 30 hp 38.0 A 22.0 kW 57.0 A
33–3AA21 70.0 A 80.0 A 46.0 A 22.0 kW 60.0 A 30.0 kW 52.0 A 40 hp 46.0 A 30.0 kW 69.0 A
42–3AA21 87.0 A 100.0 A 60.0 A 30.0 kW 75.0 A 37.0 kW 65.0 A 50 hp 60.0 A 37.0 kW 90.0 A
* Siemens 4–pole motor, 1LA5 series or equivalent.
** Automatically selected on voltage/frequency curve types 4 and 5 (see section 1.4.1).
2.2 Cable Lengths
The inverters will operate satisfactorily with unscreened cables of up to 150 m in length and screened or armoured
cable of up to 50 m in length. For applications where longer cables are required, inductors must be fitted to reduce
capacitive currents.
Note
If long cables are used, it may be necessary to change the value of parameter P52 to compensate for any
inaccuracies in the output current reading.
The following chokes are suitable for applications where up to 100/200 m screened/unscreened cables are required:
Model No. Choke Type
6SE210*–1AA11 & 6SE2103–3AA21 4EP3601–8DB
6SE2105–/6SE2108–3AA21 4EP3801–4DB
6SE2113–/6SE2117–/6SE2122–3AA21 4EP3800–4DB
6SE2127–/6SE2133–3AA21 4EP4002–1DB
6SE2142–3AA21 4EU2421–8AA00

SIMOVERT P 6SE21 Series Inverters
English Operating Instructions
Siemens plc 1995
G85139–A1615–U156–A
02.95
12 
3. MECHANICAL INSTALLATION
Highvoltagesaregeneratedwithinthisequipment.Itmustonlybeinstalled andoperatedbyqualified
personnel who are familiar with the equipment, its operating requirements and instructions.
The User is responsible for installation of the motor, drive controller, transformer and other devices
in accordance with regulations and local safety codes which may apply.
Adequate protective clothing (e.g. safety gloves, goggles, etc.) should be worn by the person
installing this equipment.
Failure to observe the appropriate warnings and regulations may result in serious injury or death.
WARNING
Theinvertermustbe installed inavertical position andfixedto a solidsurfacevia its fourmountingholes.It is suitable
for wall–mounting or installation within a cubicle.
Allinvertervariantsareair–cooled.Ensurethatafreespaceofatleast100mm(4in.)isleftbothabove
and below the unit to allow an unimpeded air flow.
Avoid subjecting the inverter to excessive shock and vibration.
CAUTION
Installation drawings for the inverters are shown on the next page.

SIMOVERT P 6SE21 Series Inverters
English
Operating Instructions
Siemens plc 1995 G85139–A1615–U156–A
02.95 13
Dimension Drawings
SIEMENS SIMOVERT
A
B
Control Terminals X11
Mains Input/Motor Terminals X1
All dimensions in millimetres
185
209
197 144
257 197
293
SIEMENS SIMOVERT
A
B
375
325
225
249
237
411
162
SIEMENS SIMOVERT
Exhaust Air
COOLING FAN
258258
225
249
237
172
561667
190
A
SIEMENS SIMOVERT
258258
225
249
237
561667
315
250
6SE2101–1AA11
6SE2102–1AA11
6SE2103–1AA11
6SE2103–3AA21
6SE2105–3AA21
6SE2108–3AA21
6SE2113–3AA21
6SE2117–3AA21
6SE2122–3AA21
6SE2127–3AA21
6SE2133–3AA21
6SE2142–3AA21
Notes:
A
B
B
A
B

SIMOVERT P 6SE21 Series Inverters
English Operating Instructions
Siemens plc 1995
G85139–A1615–U156–A
02.95
14 
4. ELECTRICAL INSTALLATION
Hazardous voltages of over 750 V are used in the operation of this equipment and can cause severe
personal injury or loss of life. The following precautions must be observed to reduce risk of injury or
death:
•Only qualified service technicians should be allowed to test and repair the equipment or parts
thereof.
•Keep all covers in place during normal operation.
•Defective discharge resistors of the dc–link circuit capacitors cause hazardous voltages to
remain in the unit for some time. Make sure that the voltage has dropped below 50 V before
touching any electrical contacts. Non–observance can lead to severe or fatal injury.
•Duringcommissioning,shoulditbe necessarytomake measurementswith thepowerturned on,
do not touch any electrical contacts during such work and keep one hand completely free and
outside the electrical circuitry.
•Ensure that test equipment is in good and safe operating condition.
•Stand on an ESD–approved insulated surface while performing commissioning work with the
power on, being sure not to be grounded.
•Whenworkingon theconnectedmotor ormotorsupply cable,ensurethat theinputpower switch
of the equipment for the external feed breaker is padlocked in the OFF position.
•All work on the equipment and its installation must be carried out in accordance with the locally
applicable electrical wiring regulations. This includes proper grounding to ensure that no
accessible part of the equipment is at line or any other hazardous potential.
•The User is responsible for installation of the motor, drive controller, transformer and other
devices in accordance with regulations and local safety codes which may apply. Pay special
attention to proper conductor sizing, fusing, grounding, isolating and disconnecting means and
to overcurrent protection.
•Failure to ground the inverter properly can result in the surface of the equipment carrying
hazardous voltages which may cause severe injury, loss of life or considerable damage to
property.
WARNING
4.1 Mains Input / Motor Connections
Only qualified personnel who are familiar with the equipment, its operating instructions and
requirements should be allowed to install and operate this equipment.
Incorrect connection of the mains and motor leads (such as connecting the input to the output or
connecting excessive supply voltages to the input) will result in damage to the inverter.
WARNING
First, ensure that an input power supply of the correct voltage and current rating is available – see section 2. Next,
ensure that the specified current rating fuse/overload circuit–breaker is connected between the input power source
and the inverter.
ThepowerinputsshouldbeconnectedtoX1onthelowerprintedcircuitboardusingathreeorfour–corecableandthe
motor should be connected using a four–core cable, both suitable for the currents specified in section 2.1. Toconnect
the cable, first remove the plastic cover of the drive by undoing the retaining screws or by levering the retaining clips
inwards with a screwdriver. Next, connect the cable to the terminal block X1 as shown in Figure 3.

SIMOVERT P 6SE21 Series Inverters
English
Operating Instructions
Siemens plc 1995 G85139–A1615–U156–A
02.95 15
POWER TERMINALS: TERMINAL BLOCK X1
Single Phase Input Units:
Connection Terminal Labelling Function, Data, Notes
U1 X1.L1 Mains
N1 X1.N
PE X1. Ground
PE X1. Ground
U2
V2
W2
X1.U
X1.V
X1.W Motor connection 3AC 0 V ... Line voltage
0.0 ... 400 Hz
M
3
Three Phase Input Units:
U1 X1.L1
V1
W1
PE
X1.L2
X1.L3
X1. Ground
Mains connection 3AC 380 – 500 V +/–10%
50/60 Hz
PE X1. Ground
U2
V2
W2
X1.U
X1.V
X1.W Motor connection 0.0 ... 400 Hz
M
CONTROL TERMINALS: TERMINAL BLOCK X11
X11.1
X11.2
X11.3
X11.4
X11.5
X11.6
X11.7
X11.8
X11.9
X11.10
X11.11
X11.12
=+24 V 0 V 100 k connection to ground
Run/Stop Level or edge–triggered (P05)
+15 V
Forward/Reverse Closed = reverse
+10 V Ref. Reference voltage for potentiometer
0...10 V Frequency setpoint (voltage) (P04)
0 V
0 (4)...20 mA Frequency setpoint (current) (P04)
0 V
0...10 V Frequency/Output current indication
0...50 V Tachometer input
1AC 220 – 240 V +/–10% 50/60 Hz
5 k
=
+
–
Tacho
3
Figure 3: Connection Diagram
X11.13 Jog Jog speed set by parameter P12
Ω
DC – Output X1.– Connections for Braking Module (EBM)
DC + Output X1.+
Trip Can be used in conjunction with Run/Stop
and with PTC
X11.14
X11.15
X11.16
X11.17
ARS485 Serial I/O connection
B
‘P’ Button connection
‘’Button connection
X11.18 ‘ ’ Button connection
X11.2
X11.19
X11.20
X11.21
X11.22
NO Fault indication
COM
NC
0 V
(energised during normal operation)
3AC 0 V ... Line voltage
X11.2
Use Class 1 60/75oC copper wire only. The tightening torque for field wiring terminals is 1.5 Nm (M4).
max. load 5 mA (10 V fmax/Imax)

SIMOVERT P 6SE21 Series Inverters
English Operating Instructions
Siemens plc 1995
G85139–A1615–U156–A
02.95
16 
Inverters suitable for use with single phase supplies are fitted with three input terminals (X1.L1, X1.N and X1. ).
Those suitable for use with three phase supplies have four input terminals (X1.L1, X1.L2, X1.L3 and X1. ).
Connect the motor to terminals X1.U, X1.V and X1.W, ensuring that the motor is correctly connected for the inverter
output voltage. For single phase inverters, the motor windings will normally need to be connected in delta form.
Once the cables have been installed, route them through the rubber cable grommets or, if required, use a proprietary
cable gland.
4.2 Control Connections
Makethe controlconnections tothe topboard (X11)usingshieldedcableforanaloguesignals.Afterinstallation, route
the control cable through the right–hand cable grommet or, if required, use a proprietary cable gland.
The control cable should be routed separately from the power supply and motor cables.
The control wires must not run in the same cable duct/trunking as the motor output cables.
IMPORTANT
Refit the drive’s plastic cover.
Figure 4 shows an example of an inverter with typical control connections made. Other control configurations are
described in section 5.

SIMOVERT P 6SE21 Series Inverters
English
Operating Instructions
Siemens plc 1995 G85139–A1615–U156–A
02.95 17
P
SIMOVERT P
N
L1
1
3
2
5
W
V
U
12
10
11
9
6
7
8
X1 X1
L1
N
PE
Input
1AC 220 – 240 V, 50/60 Hz
L3
L2
X1
L1
L1
L2
L3
PE
Input
3AC 380 – 500 V, 50/60 Hz
Motor
Tachometer
Frequency/Output Current Indicator
Essential
Optional
OR
X11 X11
0..10 V
0..20 mA
4..20 mA Frequency setpoint
(analogue)
RUN
Forward/Reverse
+
+
Figure 4: Connection Example
13
Jog
20
21
19 Fault Indication to
External Alarm
17
18
16
P
14
15
Serial Comms
RS485
4
Trip
PTC
+
RUN
OR
OR
0 V
R/S
+15 V
M
3
Power
Power

SIMOVERT P 6SE21 Series Inverters
English Operating Instructions
Siemens plc 1995
G85139–A1615–U156–A
02.95
18 
5. COMMISSIONING
Hazardous voltages of over 750 V are used in the operation of this equipment.
Read the Warning Notice given at the start of section 4 before proceeding further.
WARNING
The factory setting of 6SE21–series inverters allows them to be used immediately in many applications. However,
matching to specific applications can be accomplished easily by using the wide range of digital parameter settings
provided (see section 5.3) .
5.1 Preparation for Switch–On
All the features of the 6SE21 inverter may be controlled via the RS485 serial interface. If this is how
the inverter is to be used, remember that it may start and stop without warning. Appropriate
precautions must be taken to prevent accidents from occurring while the inverter is being controlled
in this manner.
Iftheinverter is tobeoperated by externalremotecontrols connected viaterminalblock X11, disable
the integral controls to avoid misleading operation and possible damage to the inverter.
CAUTION
Ensure that the cover is fitted correctly before switching on the inverter.
Wait at least five minutes after switching off before attempting to remove the plastic cover and work
on the equipment. This will allow time for the capacitors within the unit to discharge to a safe level.
Failure to observe these precautions may result in serious injury or death.
WARNING
5.1.1 Starting and Stopping the Inverter
This equipment uses dangerous voltages and controls rotating mechanical machinery.
Dangerous voltages are present on the equipment even after switching off. Isolate elsewhere before
attempting to work on the equipment.
Under certain operating conditions the inverter can restart automatically after an input power failure.
Ensure that no one is close to machinery controlled by the inverter when such conditions prevail.
DEATH or SERIOUS INJURY can result if the above precautions are not observed.
WARNING
The method of starting and stopping the inverter depends on the setting of parameter P05. One of three different
methods of control may be used in conjunction with one of two different run–down modes. An additional run–down
mode which uses dc injection braking may be enabled by adjusting parameter P11.

SIMOVERT P 6SE21 Series Inverters
English
Operating Instructions
Siemens plc 1995 G85139–A1615–U156–A
02.95 19
Typical Configuration Comments
2
3
1
3
7 – 33 V
Simple control.
Does not restart after mains
break.
Simple control.
Restarts after mains break.
OR
2
3
1
3
7 – 33 V
OR
2
3
4
Run/Stop
Control
Ramps
down at
a rate set
by P03
Edge–triggered,
Terminal X11.3.
Trip Inactive.
Level–triggered,
Terminal X11.3.
Trip Inactive.
Run–Down
Mode Free runs
to a
standstill
000
(Factory
Setting)
002
001 003
PTC
2
3
4
OR
Simple Run/Stop control as
above, but high impedance >
2 k Ω X11.2 to X11.4 trips drive &
indicates F11.
Edge–triggered,
Terminal X11.3.
Trip active. 004 005
2
3
4
PTC
2
3
4
OR
Simple Run/Stop control.
Restarts after mains break.
High impedance > 2 k
Ω X11.2 to
X11.4 trips drive & indicates F11.
Level–triggered,
Terminal X11.3.
Trip active. 006 007
2
3
4
2
3
4
OR
RUN RUN
STOP STOP
Inverter starts when RUN button
is pressed (momentary action).
inverter stops when STOP button
pressed (momentary action,
normally closed). PTC may also
be used, but no fault will be
indicated.
Push–button
controls 008 009
P05 Setting
Do not restart the inverter or reconnect it to a motor which is already running. Wait for the motor to
stop and the inverter to reach zero output frequency before attempting to run the motor/inverter
combination again.
If required, a running restart facility is provided by parameter P42
(see section 5.3.2) .
CAUTION
The three run–down modes operate as follows:
Ramp–Down (P05 = 000, 004, 006 or 008)
The inverter output frequency will ramp–down at a rate set by parameter P03 until the minimum output
frequency (set by P07) is reached. At this point the inverter stops with no output.
Free Run (P05 = 002, 003, 005, 007 or 009)
Theinverteroutputstopsimmediately,allowingthemotorto‘freewheel’toastandstillortobestoppedbyother
means.
DC Injection Brake
DCinjection braking is selected by setting parameter P11 to avaluegreater than zero. Theinverterinjects dc
into the motor for a period equivalent to the ramp–down time set by P03 plus one second.

SIMOVERT P 6SE21 Series Inverters
English Operating Instructions
Siemens plc 1995
G85139–A1615–U156–A
02.95
20 
5.1.2 Direction of Rotation
The direction of motor rotation can be reversed by applying a voltage level of greater than +7 V to terminal 5 of the
control board. This can be achieved by connecting a short–circuit between terminals 2 and 5 on the control board or
applying an external control voltage of 7 – 33 V. If no connection is made, the output phase rotation will be clockwise.
5.1.3 Jog Feature
The inverter may be run up to a predetermined frequency (set via parameter P12) by applying an external control
voltageof7 –33 Vtoterminal 13onthe controlboard, orbyconnecting apush–buttonbetween terminals2and13on
the control board. The motor will only run while this voltage is applied, and the input is only active when the drive is
stopped.
The jog feature may be used for fine adjustment or ‘inching’ of equipment.
5.1.4 Speed Control
Themotorspeed isadjusted bythefrequencysetpoint.This canbe adjustedbyanaloguemeans(0–10V onterminal
X11.7or0–20mA/4–20mAonterminalX11.9)ordigitallybythepush–buttonslocatedbehindthefrontpanelaccess
clip.Thesepush–buttonsmaybeduplicatedbyconnectingpush–buttonstoterminalsX11.16,X11.17andX11.18 (see
Figure4)
.A10VreferenceoutputisprovidedonterminalX11.6sothatanexternalpotentiometercanbeused.Certain
fixed frequency modes may also be selected (see section 5.3.2) .
5.2 First Switch–On
Note
Refertosection 6 iftheinverter istobe usedinconjunction withtachometerfeedback. Refertodocument no.
6SE2100–0A64 if the inverter is to be controlled via the serial interface.
(1) Check input power and connections
(see section 4) .
(2) Switchoninputpower.Thedisplayshouldilluminateandread00.0.Itwillthenalternatebetween00.0 andthe
frequency to which the drive will ramp up when started.
(3) Set the parameters required
(see 5.3) .
(4) Set the frequency setpoint. Adjust the analogue setpoint to 0, or set digitally to minimum frequency via P09.
(Also see section 5.3.2 for digital frequency setpoint and skip mode operation.)
(5) Select parameter P00, and then press ‘P’. The display should read 00.0.The display will then alternate
between 00.0 and the frequency to which the drive will ramp up when started.
(6) Switchontheinverterattherun/stopinput
(seesection5.1.1) .Theinverterrunstotheminimumfrequencyset
by P07, or to the digital frequency setpoint (P09).
Note that if automatic boost operation has been selected
(see section 5.3.2) , the inverter will measure motor
characteristics and startup will be delayed for several seconds. This only occurs at first start up following a
change (other than a change to zero) of parameter P19.
(7) Adjust the low frequency voltage boost (P01) to suit the motor. If required, automatic boost may be used
instead
(see section 5.3.2) . Reset to frequency indication by selecting P00 and pressing ‘P’.
(8) Adjust the motor speed to the required value as shown by the front panel indicator.
(9) To reverse the direction of rotation of the motor, apply a voltage to the FORWARD/REVERSE input via an
externalswitch.Thefrontpaneldisplayandthemotorshoulddeceleratethrough0Hzandre–acceleratetothe
set frequency using ramp values set by P02 and P03.
(10) Tostopthemotor,applyastopsignal
(seesection5.1.1) orturnofftheinputpower.Themotorwillrundownas
defined by parameter P05 (or P11) until the display reads 00.0.

SIMOVERT P 6SE21 Series Inverters
English
Operating Instructions
Siemens plc 1995 G85139–A1615–U156–A
02.95 21
5.3 Parameterisation
5.3.1 Changing Parameter Settings
Various digital parameters can be adjusted to match the inverter to a particular motor/installation. The procedure for
adjustment is described below:
Remove the small cover directly below the LED viewing window by inserting a small blade screwdriver into the slot
provided and levering the cover upwards. This will reveal the parameterisation push–buttons:
PParameter push–button
Raise
Lower
Carryoutparameterisationwithmainspowerappliedtotheinverter.Someparameterscanbeadjustedwhilethedrive
isrunning (see5.3.2) .Ifadjustmentofaparameterisnotpermitted,thedisplaywillflashwhenthebuttonsarepressed.
The parameter number mode is obtained by pressing the parameter (P)push–button once. This results in the display
showing P00. The desired parameter can then be selected using the raise and lower push–buttons.
Whentheparameter push–buttonispressed again,thecontents oftheselected parametermemoryis displayed.The
value can then be adjusted using the raise and lower push–buttons. When the desired value has been selected,
pushing the parameter button again loads the new value into non–volatile memory and the display once again shows
the parameter number.
Whenall the required parameter settings have been loaded in, return to normal operating mode by selectingP00 and
then pressing P. The display will then revert to its normal frequency/output current or fault code indication.
Note
If necessary, all parameters can be reset to the factory default settings. The procedure for this is as follows:
(1) Press P (P00 displayed).
(2) Press ∧until P41 is displayed.
(3) Press P to view the contents of P41 (000 for Europe, 001 for North America).
(4) Press ∧to change 000 to 001 (Europe), or ∨to change 001 to 000 (North America).
(5) Press P to load the new setting into memory.
(6) Press P again.
(7) Press ∨to change 001 back to 000 (Europe), or ∧to change 000 back to 001 (North America).
(8) Press P.
(9) Press ∨until P00 is displayed.
(10) Press P to return to the normal display.

SIMOVERT P 6SE21 Series Inverters
English Operating Instructions
Siemens plc 1995
G85139–A1615–U156–A
02.95
22 
5.3.2 Parameter Descriptions
Note: Parameters marked with a ‘•’ may be adjusted during operation.
Parameter
Number Description Display
Setting
(Default) Notes
P00
• Frequency, output current or fault
code
P01 • Low frequency voltage boost (%)
VOLTAGE
FREQUENCY
100%
Boost
0–30%
00.0 –
30.0
(00.0)
The inverter output voltage can be raised to improve the motor torque at
low speeds.
If the inverter trips and displays F00 when the RUN switch is operated,
the low frequency voltage boost should be adjusted upwards in 0.1%
increments until the motor starts without tripping. Note that excessive
boost can also cause tripping or motor overheating due to the motor
current being too high. (Adjustable while the motor is running.)
The boost may also be set using the automatic boost feature, set by
P19.
Note that P01 cannot be adjusted manually when automatic boost is
enabled.
P02 Ramp up time to maximum frequency
(seconds) 00.0 – 400
(10.0)
Short ramp up times will result in high motor currents being drawn
during start–up which can cause the inverter to trip (F00).
P03 Ramp down time from maximum
frequency (seconds) 00.0 – 400
(10.0)
Short ramp down times will result in voltage regeneration from the
stored mechanical energy in the motor which may cause the inverter to
trip (F00).
P04 Frequency control mode selection:
Analogue Inputs
0 – 10 V input (X11.7)
0 – 20 mA input (X11.9)
4 – 20 mA input (X11.9)
Digital Adjustment
Analogue Inputs
0 – 10 V input (X11.7)
0 – 20 mA input (X11.9)
4 – 20 mA input (X11.9)
000
001
002
003
004
005
006
007
008
009
(000)
0 V = 0 Hz, 10 V = max. frequency P08.
0 mA = 0 Hz, 20 mA = max. frequency P08.
4 mA = 0 Hz, 20 mA = max. frequency P08.
The frequency of the inverter can be adjusted upwards or downwards
using the
∧ ∨ keys. However, when the inverter is stopped and
restarted, it will always run to the frequency stored in parameter P09.
As 003 but the rate of change of the frequency is fixed (i.e. does not
increase after a few seconds). The feature may be useful in some
automated control functions.
As 003 but parameter P09 is updated (after a delay of about 3 s) to the
new adjusted value. In this case, when the inverter is stopped and
restarted, it will run to the new frequency stored in parameter P09.
As 004 but incorporates the P09 update feature of 005.
0 V = min. frequency P07, 10 V = max. frequency P08.
0 mA = min. frequency P07, 20 mA = max. frequency P08.
4 mA = min. frequency P07, 20 mA = max. frequency P08.
Note: Additional fixed frequencies are programmable using
parameter P24, which overrides this operating mode.