Siemens MICROMASTER 420 User manual

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MICROMASTER 420
0.12 kW - 11 kW
Compact Operating Manual Issue 04/04
User Documentation

Warnings, Cautions and Notes Edition 04/04
MICROMASTER 420
2 Compact Operating Manual
Warnings, Cautions and Notes
The following Warnings, Cautions and Notes are provided for your safety and as a
means of preventing damage to the product or components in the machines
connected.
Specific Warnings, Cautions and Notes that apply to particular activities are
listed at the beginning of the relevant chapters and are repeated or supplemented
at critical points throughout these chapters.
Please read the information carefully, since it is provided for your personal safety
and will also help prolong the service life of your MICROMASTER 420 Inverter and
the equipment you connect to it.
WARNING
 This equipment contains dangerous voltages and controls potentially
dangerous rotating mechanical parts. Non-compliance with Warnings or failure
to follow the instructions contained in this manual can result in loss of life,
severe personal injury or serious damage to property.
 Only suitable qualified personnel should work on this equipment, and only after
becoming familiar with 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.
 The DC link of all MICROMASTER modules remains at a hazardous voltage
level for 5 minutes after all voltages have been disconnected. Therefore always
wait for 5 minutes after disconnecting the inverter from the power supply before
carrying out work on any modules. The drive unit discharges itself during this
time.
 This equipment is capable of providing internal motor overload protection in
accordance with UL508C section 42. Refer to P0610 (level 3) and P0335.
Motor overload protection can also be provided using an external PTC via a
digital input.
 This equipment is suitable for use in a circuit capable of delivering not more
than 10,000 symmetrical amperes (rms), for a maximum voltage of 230/460 V
when protected by an H or K type fuse, a circuit breaker or self-protected
combination motor controller.
 Use Class 1 60/75 °C copper wire only with the cross-sections as specified in
the Operating Instructions..
 The mains input, DC and motor terminals carry dangerous voltages even if the
inverter is inoperative, wait 5 minutes to allow the unit to discharge after
switching off before carrying out any installation work.
NOTES
 Before installing and commissioning, please read these safety instructions and
warnings carefully and all the warning labels attached to the equipment.
 Make sure that the warning labels are kept in a legible condition and replace
missing or damaged labels.
 Maximum permissible surrounding ambient temperature is 50°C.
!

Edition 04/04 Contents
MICROMASTER 420
Compact Operating Manual 3
Contents
1Installation ............................................................................................................... 4
1.1 Clearance distances for mounting ............................................................................ 4
1.2 Mounting dimensions................................................................................................ 4
2Electrical Installation.............................................................................................. 5
2.1 Technical Specifications ........................................................................................... 5
2.2 Power Terminals....................................................................................................... 6
2.3 Control terminals....................................................................................................... 6
2.4 Block diagram ........................................................................................................... 7
3Factory setting ........................................................................................................ 8
3.1 50/60 Hz DIP switch.................................................................................................. 8
4Communications..................................................................................................... 9
4.1 Establishing communications MICROMASTER 420 ⇔STARTER.......................... 9
4.2 Establishing communications between the MICROMASTER 420 ⇔AOP .............. 9
4.3 Bus interface (CB)................................................................................................... 10
5BOP / AOP (Option) .............................................................................................. 11
5.1 Buttons and their Functions .................................................................................... 11
5.2 Changing parameters using as an example P0003 "Access level"........................ 12
6Commissioning ..................................................................................................... 13
6.1 Quick commissioning.............................................................................................. 13
6.2 Commissioning the application ............................................................................... 15
6.2.1 Serial Interface (USS)............................................................................................. 15
6.2.2 Selection of command source ................................................................................ 16
6.2.3 Digital input (DIN).................................................................................................... 16
6.2.4 Digital output (DOUT) ............................................................................................. 17
6.2.5 Selection of frequency setpoint............................................................................... 17
6.2.6 Analog input (ADC)................................................................................................. 18
6.2.7 Analog output (DAC)............................................................................................... 18
6.2.8 Motor potentiometer (MOP) .................................................................................... 19
6.2.9 Fixed frequency (FF)............................................................................................... 19
6.2.10 JOG......................................................................................................................... 20
6.2.11 Ramp-function generator (HLG) ............................................................................. 20
6.2.12 Reference/limit frequencies .................................................................................... 21
6.2.13 Closed-loop motor control....................................................................................... 21
6.2.14 Inverter/motor protection......................................................................................... 22
6.2.15 Inverter-specific Functions...................................................................................... 23
6.3 Series commissioning............................................................................................. 26
6.4 Parameter reset of factory setting........................................................................... 26
7Displays and messages ....................................................................................... 27
7.1 LED status display .................................................................................................. 27
7.2 Fault messages and Alarm messages.................................................................... 27

1 Installation Issue 04/04
MICROMASTER 420
4 Compact Operating Manual
1 Installation
1.1 Clearance distances for mounting
The inverters can be mounted adjacent to each other. If they are mounted on top of
each other, however, a clearance of 100 mm has to be observed.
Side of cabinet enclosure
15 mm ...
Side of cabinet enclosure
0 mm 15 mm
100 mm
Fig. 1-1 Clearance distances for mounting
1.2 Mounting dimensions
Frame
Size
Drilling Dimensions Tightening Torque
H
mm (Inch)
W
mm (Inch)
Bolts Nm (ibf.in)
A 160 (6.30) – 2xM4
B 174 (6.85) 138 (5.43) 4xM4
H
WC 204 (8.03) 174 (6.85) 4xM4
2.5 (22.12)
Fig. 1-2 Mounting dimensions

Issue 04/04 2 Electrical Installation
MICROMASTER 420
Compact Operating Manual 5
2 Electrical Installation
2.1 Technical Specifications
1 AC 200 V – 240 V
2AB
Order No.
6SE6420- 2UC
11-
2AA1
12-
5AA1
13-
7AA1
15-
5AA1
17-
5AA1
21-
1BA1
21-
5BA1
22-
2BA1
23-
0CA1
Frame Size A B C
kW 0.12 0.25 0.37 0.55 0.75 1.1 1.5 2.2 3.0
Inverter Output
Rating hp 0.16 0.33 0.5 0.75 1.0 1.5 2.0 3.0 4.0
Input Current A 1.4 2.7 3.7 5.0 6.6 9.6 13.0 17.6 23.7
Output Current A 0.9 1.7 2.3 3.0 3.9 5.5 7.4 10.4 13.6
A 10 10 10 10 16 20 20 25 32
Recommended
Fuse 3NA 3803 3803 3803 3803 3805 3807 3807 3810 3812
mm21,0-2,5 1,0-2,5 1,0-2,5 1,0-2,5 1,0-2,5 2,5-6,0 2,5-6,0 4,0-6,0 6,0-10
Input Cable AWG 17-13 17-13 17-13 17-13 17-13 13-9 13-9 11-9 9-7
mm21.0-2.5 1.0-2.5 1.0-2.5 1.0-2.5 1.0-2.5 1.0-6.0 1.0-6.0 1.0-6.0 1.5-10
Output Cable AWG 17-13 17-13 17-13 17-13 17-13 17-9 17-9 17-9 15-7
Tightening Torque Nm
(lbf.in)
1.1
(10)
1.5
(13.3)
2.25
(20)
3 AC 200 V – 240 V
2AC
Order No.
6SE6420- 2UC
11-
2AA1
12-
5AA1
13-
7AA1
15-
5AA1
17-
5AA1
21-
1BA1
21-
5BA1
22-
2BA1
23-
0CA1
24-
0CA1
25-
5CA1
Frame Size A B C
kW 0.12 0.25 0.37 0.55 0.75 1.1 1.5 2.2 3.0 4,0 5,5
Inverter Output
Rating hp 0.16 0.33 0.5 0.75 1.0 1.5 2.0 3.0 4.0 5,0 7,5
Input Current A 0.6 1.1 1.6 2.1 2.9 4.1 5.6 7.6 10.5 13.1 17.5
Output Current A 0.9 1.7 2.3 3.0 3.9 5.5 7.4 10.4 13.6 17.5 22.0
A 10 10 10 10 10 16 16 20 25 32 35
Recommended
Fuse 3NA 3803 3803 3803 3803 3803 3805 3805 3807 3810 3812 3814
mm21,0-2,5 1,0-2,5 1,0-2,5 1,0-2,5 1,0-2,5 1,0-6,0 1,0-6,0 1,0-6,0 2,5-10 2,5-10 4,0-10
Input Cable AWG 17-13 17-13 17-13 17-13 17-13 17-9 17-9 17-9 13-7 13-7 11-7
mm21.0-2.5 1.0-2.5 1.0-2.5 1.0-2.5 1.0-2.5 1.0-6.0 1.0-6.0 1.0-6.0 1.5-10 2.5-10 4.0-10
Output Cable AWG 17-13 17-13 17-13 17-13 17-13 17-9 17-9 17-9 15-7 13-7 11-7
Tightening Torque Nm
(lbf.in)
1.1
(10)
1.5
(13.3)
2.25
(20)
3 AC 380 V – 480 V
2AD
Order No.
6SE6420- 2UD
13-
7AA1
15-
5AA1
17-
5AA1
21-
1AA1
21-
5AA1
22-
2BA1
23-
0BA1
24-
0BA1
25-
5CA1
27-
5CA1
31-
1CA1
Frame Size A B C
kW 0.37 0.55 0.75 1.1 1.5 2.2 3.0 4.0 5,5 7,5 11,0
Inverter Output
Rating hp 0.5 0.75 1.0 1.5 2.0 3.0 4.0 5.0 7,5 10,0 15,0
Input Current A 1.1 1.4 1.9 2.8 3.9 5.0 6.7 8.5 11.6 15.4 22.5
Output Current A 1.2 1.6 2.1 3.0 4.0 5.9 7.7 10.2 13.2 19.0 26.0
A 10 10 10 10 10 16 16 20 20 25 32
Recommended
Fuse 3NA 3803 3803 3803 3803 3803 3805 3805 3807 3807 3810 3814
mm21,0-2,5 1,0-2,5 1,0-2,5 1,0-2,5 1,0-2,5 1,0-6,0 1,0-6,0 1,5-6,0 2,5-10 4,0-10 6,0-10
Input Cable AWG 17-13 17-13 17-13 17-13 17-13 17-9 17-9 15-9 13-7 11-7 9-7
mm21.0-2.5 1.0-2.5 1.0-2.5 1.0-2.5 1.0-2.5 1.0-6.0 1.0-6.0 1.0-6.0 1.5-10 2.5-10 4.0-10
Output Cable AWG 17-13 17-13 17-13 17-13 17-13 17-9 17-9 17-9 15-7 13-7 11-7
Tightening Torque Nm
(lbf.in)
1.1
(10)
1.5
(13.3)
2.25
(20)

2 Electrical Installation Issue 04/04
MICROMASTER 420
6 Compact Operating Manual
2.2 Power Terminals
You can gain access to the mains and motor terminals by removing the front
covers.
SDP (BOP/AOP)
release and remove
Push the terminal
cover down
Fig. 2-1 Removing Front Covers
L2/N
L3
L1/L
UVW
Fig. 2-2 Power Terminals
2.3 Control terminals
Terminal Designation Function
1 - Output +10 V
2 - Output 0 V
3 ADC+ Analog input (+)
4 ADC- Analog input (-)
5 DIN1 Digital input 1
6 DIN2 Digital input 2
7 DIN3 Digital input 3
8 - Isolated output +24 V / max. 100 mA
9 - Isolated output 0 V / max. 100 mA
10 RL1-B Digital output / NO contact
11 RL1-C Digital output / Changeover contact
12 DAC+ Analog output (+)
13 DAC- Analog output (-)
14 P+ RS485 port
15 N- RS485 port

Issue 04/04 2 Electrical Installation
MICROMASTER 420
Compact Operating Manual 7
2.4 Block diagram
PE
1/3 AC 200 - 240 V
3 AC 380 - 480 V SI
PE L/L1, N/L2
L/L1, N/L2, L3
L1, L2, L3
=
3 ~
PE U,V,W
M
A/D
+10 V
0 V
0 - 20 mA
max. 500 Ω
CPU
RS485
D/A
~
=
ADC+
ADC-
DIN1
DIN2
DIN3
DAC+
DAC-
P+
N-
RL1-B
RL1-C
1
2
3
4
5
6
7
8
9
12
13
14
15
10
11
≥ 4.7 kΩ
Output 0 V
max. 100 mA
(isolated)
30 V DC / 5 A (resistive)
250 V AC / 2 A (inductive) Relay
Output +24 V
max. 100 mA
(isolated)
DC-link connection
or
or
CB
Option automatic
DC+
DC−
DIN4
2
3
4
9
24 V
-+
The analog input circuit can be
alternatively configured to
provide an additional digital
input (DIN4):
12
60 Hz
50 Hz
DIP switch
Not
used
BOP link
COM link
Jog
0
I
P
Fn
Hz
150.00
BOP/AOP
RS232
DIN1
DIN2
DIN3
5
6
7
9
External 24 V
NPN
PNP
or
24 V
+
_
Fig. 2-3 Inverter block diagram

3 Factory setting Issue 04/04
MICROMASTER 420
8 Compact Operating Manual
3 Factory setting
The MICROMASTER 420 frequency inverter is set in the factory so that it can be
operated without any additional parameterization. To do this, the motor parameters
set in the factory (P0304, P0305, P0307, P0310), that correspond to a 4-pole 1LA7
Siemens motor, must match the rated data of the connected motor (refer to the
rating plate).
Further factory setting:
 Command sources P0700 = 2 (Digital input, see Fig. 3-1)
 Setpoint source P1000 = 2 (Analog input, see Fig. 3-1)
Digital Inputs
I/O
Ack
< 4.7 k Ω
Analog input
 Motor cooling
P0335 = 0
 Motor current limit
P0640 = 150 %
 Min. frequency
P1080 = 0 Hz
 Max. frequency
P1082 = 50 Hz
 Ramp-up time
P1120 = 10 s
 Ramp-down time
P1121 = 10 s
 Control mode
P1300 = 0
Fig. 3-1 Analog and Digital Inputs
Input/Output Terminals Parameter Function
Digital input 1 5 P0701 = 1 ON / OFF1 (I/O)
Digital input 2 6 P0702 = 12 Reverse ( )
Digital input 3 7 P0703 = 9 Fault reset (Ack)
Digital input 8 - Power supply Digital input
3/4 P1000 = 2 Frequency setpoint
Analog input 1/2 - Power supply Analog input
Output relay 10/11 P0731 = 52.3 Default identification
Analog output 12/13 P0771 = 21 Output frequency
3.1 50/60 Hz DIP switch
The default motor base frequency
of the MICROMASTER inverter is
50 Hz. For motors, which are
designed for a base frequency of
60 Hz, the inverters can be set to
this frequency via a DIP switch.
 Off position:
European defaults
(50 Hz, kW etc.)
 On position:
North American defaults
(60 Hz, hp etc.)
50/60 Hz DIP switch
for frequency setting
60 Hz
50 Hz

Issue 04/04 4 Communications
MICROMASTER 420
Compact Operating Manual 9
4 Communications
4.1 Establishing communications
MICROMASTER 420 ⇔STARTER
The following optional components are additionally required in order to establish
communications between STARTER and MICROMASTER 420:
 PC <-> frequency inverter connecting set
 BOP if the USS standard values (refer to Section 6.2.1 "Serial Interface
(USS)") are changed in the MICROMASTER 420 frequency inverter
PC <-> frequency inverter
connecting set
MICROMASTER 420
USS settings, refer to Section 6.2.1 "Serial
Interface (USS)"
STARTER
Menu, Options --> Set PG/PC interface -->
Select "PC COM-Port (USS)" --> Properties --
> Interface "COM1", select a baud rate
NOTE
The USS parameter settings in the
MICROMASTER 420 frequency inverter and
the settings in STARTER must match!
4.2 Establishing communications between the
MICROMASTER 420 ⇔AOP
 Communications between AOP and MM420 are based on the USS protocol,
analog to STARTER and MM420.
 Contrary to the BOP, the appropriate communication parameters - both for the
MM420 as well as for AOP - should be set if the automatic interface detection
was not carried-out (refer to Table 4-1).
 Using the optional components, the AOP can be connected to the
communication interfaces (refer to Table 4-1).
Table 4-1
AOP at the BOP link AOP at the COM link
MM420 parameters
- baud rate
- bus address
P2010[1]
–
P2010[0]
P2011
AOP parameters
- baud rate
- bus address
P8553
–
P8553
P8552
Options
- direct connection
- indirect connection
No option necessary
BOP/AOP door mounting kit
(6SE6400-0PM00-0AA0)
Not possible
AOP door mounting kit
(6SE6400-0MD00-0AA0)

4 Communications Issue 04/04
MICROMASTER 420
10 Compact Operating Manual
AOP as control unit
Parameter / Terminal AOP on BOP link AOP on COM link
Command source
/ P0700 4 5
P1000 1
P1035 2032.13 (2032.D) 2036.13 (2036.D)
P1036 2032.14 (2032.E) 2036.14 (2036.E)
Frequency setpoint
(MOP)
Output frequency of the MOP higher
Output frequency of the MOP lower
Acknowledge fault
P2104 2032.7 2036.7
* A fault can be acknowledged via the AOP independently of P0700 or P1000.
4.3 Bus interface (CB)
DeviceNet
P0918
CANopen
P0918
PROFIBUS
P0918 *)
Bus interface (CB)
P2040 P2040 P2040
P2041 P2041 P2041
P2051 P2051 P2051
Baud rate is
automatically specified
by the master
*) DIP switch must be observed
DeviceNet CANopen PROFIBUS
P2041[0] PZD length
Status/actual value
Data transfer type
from T_PD0_1, T_PD0_5
P2041[1] PZD length
control/setpoint
Data transfer type T_PD0_6
R_PD0_1
R_PD0_5
R_PD0_6
P2041[2] Baud rate 0: 125 kbaud
1: 250 kbaud
2: 500 kbaud
Mapping CANopen <--> MM4
P2041[3] Diagnostics Mapping CANopen <--> MM4
P2041[4] _ - response to communication errors
- baud rate
Only for special
cases