EM11 User’s Manual
2. Product Information
13
Model
Appearance and installing dimension
（
mm
）
W
W1
H
H1
D
Φ
d
EM11- G3-018/P3-022
290 230 455 440 218
Φ
7
EM11- G3-022/P3-030
EM11- G3-030/P3-037
EM11- G3-037/P3-045
320 230 555 540 240
Φ
10
EM11- G3-045/P3-055
EM11- G3-055/P3-075
410 320 635 610 239
Φ
12
EM11- G3-075/P3-090
EM11- G3-090/P3-110
460 320 654 630 340
Φ
12
EM11- G3-110/P3-132
EM11- G3-132/P3-160
560 420 847 820 348
Φ
14
EM11- G3-160/P3-200
EM11- G3-200/P3-220
EM11- G3-220/P3-250
700 520 956 920 368
Φ
14
EM11- G3-250/P3-280
EM11- G3-280/P3-315
EM11- G3-315/P3-355
800 620 1232 1200 378
Φ
18
EM11- G3-355/P3-400
EM11- G3-400/P3-450
2.5.3 Appearance and installation dimension of external keypad (keypad tray)
Diagram 2-6 Appearance and installation dimension of external keypad (keypad tray)
2.6 Options
Please indicate if the following options are needed when placing order.
2. Product Information
EM11 User’s Manual
14
Table 2-4 Options of EM11 frequency inverter
Item
Model
Functions
Remarks
Internal
braking unit
With”-B” after the
product model
Single-phase:0.4kw~2.2kw;
Three-phase: 0.75kw~15kw, Standard
built-in brake unit
The internal braking
unit is optional for
18.5kw~75kw.
External
braking unit
External braking unit for above
75kw(including 75kw)
Energy-rege
neration unit
Energy saving product makes the electric
energy of frequency inverter feedback to
the AC power grid.
Rectifying
unit
To use the unit when many frequency
inverters use the one DC bus, the way
can save energy.
2.7 Daily maintenance of frequency inverters
2.7.1 Daily maintenance
Due to the influence of temperature, humidity, dust and vibration, it will lead to poor heat dissipation and
component aging of frequency inverter, and results in potential failure or reducing the service life of
frequency inverter. Therefore, it is necessary to do daily and regular maintenance of the frequency inverter.
Daily check items:
1.
Check if the sound is normal during the running of the motor;
2.
Check if there is a vibration during the running of the motor;
3.
Check whether the installation environment of frequency inverter has changed;
4.
Check if the cooling fan of frequency inverter is working correctly, the cooling air duct is clear;
5.
Check if the frequency inverter is overheating;
6.
Make sure that the frequency inverter should always be kept in a clean state;
7.
Clear up effectively the dust on the surface of the frequency inverter, prevent the dust from entering into
the inside of the frequency inverter, especially for the metal dust;
8.
Clear up effectively the oil and dust on the cooling fan of frequency inverter.
2.7.2 Regular inspection
Please regularly check frequency inverter, especially for the difficult checking place of running.
Regular inspection items:
1.
Check the air duct and clear up regularly;
2.
Check if there are any loose screws;
3.
Check if the inverter has been corroded;
4.
To do insulation test for the main circuit;
5.
Check if the terminals have arcing mark.
Note:
When using the megger(please use the DC 500V meg ohm meter) to measure the insulation
resistance, you shall disconnect the main circuit to the frequency inverter. Do not use the insulation
resistance meter to test the control circuit. Do not to do the high voltage test (It has been done when the
frequency inverter producing in factory.)
