Service Manual HS60.pdf - 第77页

HS -60 Se rvic e Manu al 3 P owe r Su pply 03/ 200 3 U S I ssue 3. 7 Mea su rin g vo lta ge s on th e po wer su pp ly uni t 75 3.7 Measur ing vo lt ages on the powe r supply u nit 3.7. 1 Safety ins t ruct ions DANGER The…

3 Power Supply HS-60 Service Manual

3.6 Description of the power supply functions 03/2003 US Issue

If one of the Start buttons is pressed, the SSK switches and the green LEDs for channel 1 and

channel 2 light up. The five normally open contacts on the SSK switch five independent circuits

(see HS-60 power supply, 00336145-xxxxxxLD4, in the detailed circuit diagrams): 3

– Normally open contact 13-14 actuates SZ2, SZ3 and SZ 23.

SZ2 and SZ3 switch through the 200 VDC and 100 VDC link circuit voltages for the servo

amplifiers of the x, y and star axes. SZ23 switches the current limitation. 3

– Electronic load disconnecting relay ELR1 switches the 3 x 230 VAC operating voltage for

lifting tables 1 and 2 of conveyor 1,

– The optional relay ELR2 switches through the voltage for lifting tables 3 and 4 of conveyor 2.

– An auxiliary contact on contactor SZ23 sends a 24 V signal in the form of an "M_controller

ON" message to CAN input/output module 1 (X1dm) and in the form of a "ServoEnable"

message to the servo unit.

– Normally open contact 23-24 switches the 40 VDC operating voltage to the component ta-

bles.

– Normally open contact 33-34 switches through the 24 VDC operating voltage to the used

tape cutter.

– Normally open contacts 43-44 and 53-54 are provided for the safety loops of external mod-

ules.

HS-60 Service Manual 3 Power Supply

03/2003 US Issue 3.7 Measuring voltages on the power supply unit

3.7 Measuring voltages on the power supply unit

3.7.1 Safety instructions

DANGER The placement system is supplied with 3 x 400 VAC

(3 x 204 VAC / 3 x 230 VAC / 3 x 380 VAC / 3 x 415 VAC) ± 5 %, 50/60 Hz main voltage. 3

– Consequently, parts of the system carry potentially lethal voltages, even when switched off at

the main switch.

– Incorrect handling of the placement system can therefore result in death or severe injury or

considerable damage to equipment.

– Measurements and repairs must always be carried out by appropriately qualified personnel.

– Always follow the safety instructions in section 2 of this manual.

– Always follow the applicable accident prevention and VDE regulations (particularly DIN EN 60

204 part 1) or the regulations specific to your country.

– Before starting any repairs, switch off at the main switch and disconnect the placement system

from the main power supply.

– Secure the system to prevent it being switched on again. If these instructions are not followed,

it is possible to touch live parts, which could result in death or severe injury.

3.7.2 Tools and equipment required

– Digital voltmeter, class 1.5

– Test cable with test probes or terminals

– HS-60 detailed circuit diagrams, item no. 00193426-01

– DIN 911 Allen key, size 6

– 3 mm key, double-bit, DIN 43668-J33, item no. 00304191-01

Measuring ranges

AC voltage 750 V

Alternating current 40 A

DC voltage 300 V

Direct current 30 A

Resistance 200 Ohm - 20 MOhm

3 Power Supply HS-60 Service Manual

3.7 Measuring voltages on the power supply unit 03/2003 US Issue

3.7.3 Preparing the power supply unit for measurement

The power supply unit and main switch are located in the machine frame. In front of the unit there

is a set of safety doors which can be opened with the double-bit key. 3

The unit is fixed to the machine frame using an M8 hexagon socket-head screw. 3

To measure the power supply, proceed as follows: 3

Æ Switch the placement system off at the main switch.

Æ Loosen the M8 lock screw on the underside.

Æ Pull the unit out as far as the stop.

WARNING Make sure that the main power cable and supply lines do not be-

come caught up in the placement system, otherwise the insulation will be damaged. 3

Æ Switch the placement system on at the main switch and start it up.

3.7.4 Measuring voltages on the front panel of the power supply unit

PLEASE NOTE: The placement system must be started in order to take these measurements.

This means that the protective covers and component flaps must be closed and the component

tables docked. The emergency stop button must be released and the Start button pressed. If this

is not the case, the operating voltages will not be switched through to the servo amplifiers, lifting

tables, etc. 3

The inputs to the modules all have odd numbers and the outputs have even numbers. 3

In the case of fuses (F1, etc), the input is always on the underside of the module, whereas with

contactors (SZ1, etc) and motor circuit-breakers (MS1 ...), it is always at the top. 3