➤ Watch for any faults occurring in the first hours of operation.
➤ After the first 50 operating hours, check all electrical connections and tighten where nec‐
essary.
7.10 Checking the direction of rotation
The machine is designed for a clockwise phase sequence.
In frequency-controlled compressors, the direction of rotation of the fan motor may be incorrect
even if the compressor motor is correct.
Ideally, the direction of phase rotation should be measured with a phase sequence meter.
Alternatively, start the machine very briefly and observe the direction of rotation of the motor cool‐
ing fan.
1. Check the direction of phase rotation with a phase sequence meter at the inlet lines of the fan
motor.
2. If the fan motor is incorrect, change the machine supply phases L1 and L2.
You do not have a phase sequence meter?
➤ Switch the machine on and off again the moment the drive motor begins to turn.
➤ Compare the direction of rotation of the fan with the arrow on the motor casing.
7.11 Setting the display language
The controller can display text messages in several languages.
You can set the language for texts on the display. This setting will be retained even when the ma‐
chine is switched off.
1. In operating mode, switch to the main menu with the «Return» key.
2. Press the «UP» or «DOWN» keys until the current language is shown as active line (inverse):
6 . 1 b a r 8 0 . 0 ° C
–––––––– Deutsch ––––––––
Current language (active line)
▶1 xxxxxxxxxx
Submenu
▶2 xxxxxxxxxx
Submenu
▶3 xxxxxxxxxx
Submenu
▶4 xxxxxxxxxx
Submenu
▶5 xxxxxxxxxx
Submenu
▶6 xxxxxxxxxx
Submenu
3. Use the «Return» key to switch to setting mode.
The language display flashes.
4. Move to the required language with «UP »or «DOWN».
5. Confirm the setting with the «Enter» key.
Result The display texts are now in the selected language.
Further information Detailed information can be found in the SIGMA CONTROL 2 operating manual.
7 Initial Start-up
7.10 Checking the direction of rotation
ESD_2C_10357405_10–LIN_00 E
Service Manual Screw Compressor
ESD 442/14 bar (abs) SFC SIGMA CONTROL 2
47
To Next Page
Loading...
