00193437-03_AI_PowerSupplyConversion_DE EN - 第195页
Assembly Instructions, Converting the Power Supp ly 5 Converti ng the power supply on S-27 HM ma chines/ and on component trolleys 12/2013 Edition 5.6 Converting the S-27 HM from 3 x 400 VAC to 3 x 208 VAC 193 5.6.1 Remo…
5 Converting the power supply on S-27 HM machines/ and on component trolleys Assembly Instructions, Converting the Power Supply
5.6 Converting the S-27 HM from 3 x 400 VAC to 3 x 208 VAC 12/2013 Edition
192
5.6 Converting the S-27 HM from 3 x 400 VAC to 3 x 208 VAC
PLEASE NOTE: 5
Dock out the two component trolleys before switching off the machine. 5
RISK OF DEATH 5
Disconnect the machine correctly as described in section 1, page 145.
Disconnect the machine from the main power supply.
Take suitable action to ensure that the machine cannot be connected to the power supply dur-
ing the conversion work.
Put up warning signs to indicate that work is being carried out on the electrical system.
Assembly Instructions, Converting the Power Supply 5 Converting the power supply on S-27 HM machines/ and on component trolleys
12/2013 Edition 5.6 Converting the S-27 HM from 3 x 400 VAC to 3 x 208 VAC
193
5.6.1 Removing the power supply unit
Loosen the two hexagon socket head screws (item 2 in Fig. 5 - 1).
Remove the cover (item 3 in Fig. 5 - 1).
Loosen the hexagon socket-head screw at the bottom of the power supply unit.
Take hold of the handle and remove the power supply unit from the housing.
The terminals on transformers T1 and T2 and the inrush current limiter can now be accessed
for rewiring.
5
Fig. 5 - 1 Removing the cover over the power supply unit
5
(1) Main switch
(2) Hexagon socket head screw, 2x
(3) Cover
(T) PCB transport direction 5
5 Converting the power supply on S-27 HM machines/ and on component trolleys Assembly Instructions, Converting the Power Supply
5.6 Converting the S-27 HM from 3 x 400 VAC to 3 x 208 VAC 12/2013 Edition
194
Fig. 5 - 2 Cable connection terminals for the transformers T1 and T2 and the inrush current limiter (3 x 208 VAC)
(T1) Single-phase transformer T1 2 - 6 230 VAC
2 - 4 120 VAC
(T2) Three-phase transformer T2 1U1, 1V1, 1W1 3 x 400 VAC
1U3, 1V3, 1W3 3 x 208 VAC
(A1) Inrush current limiter 5