00197042-04_SM_X-Serie-S_Customer_EN - 第75页

3 Power supply 3.4 Power supply and transformer module (up to serial number Gxxx) Service Manual SIPLACE X-Serie S 06/2019 75 3.4.20 Replacing the Motor Protection Release Block (PKZ2) NOTICE Old version [00342494-xx] Th…

3 Power supply

3.4 Power supply and transformer module (up to serial number Gxxx)

74 Service Manual SIPLACE X-Serie S 06/2019

Removal

► Switch off the machine, disconnect it from the power supply and secure it to prevent

unauthorized reactivation.

1.2 "Preparatory work..." [}16]

► Before you start working, check the power supply for absence of voltage and observe the

waiting times!

► Unplug all connections to the motor protection switch. You might like to mark their positions to

make clear assignment easier later on.

Fig.75: Motor protection switch

1. Motor protection switch PKZ2 basic

device 3 pin [00342494-xx]

(discontinued, not backwards compat-

ible)

2. Motor protection trip block A-PKZ2-A

[03078388-xx]

(discontinued, not backwards compat-

ible)

3. Motor protection trip block ZM-16-PKZ2

[00342495-xx]

or

Motor protection trip block ZM-32-PKZ2

[00342496-xx]

(discontinued, not backwards compat-

ible)

Fig.76: Dismantling the rod

► Remove the rod which connects the

motor protection switch(1) to the outer

main switch handle. To do this, press

the white plastic clips together(2) and

pull off the rod(3).

► Take the motor protection switch off the

rail.

Installation

► Follow the removal instructions in reverse order for installation. Also observe the following

instructions:

– Check the setting of the motor protection trip block (see 3.4.20 "Replacing the Motor Pro-

tection Release Block (PKZ2)" [}75]).

3 Power supply

3.4 Power supply and transformer module (up to serial number Gxxx)

Service Manual SIPLACE X-Serie S 06/2019 75

3.4.20 Replacing the Motor Protection Release Block (PKZ2)

NOTICE

Old version [00342494-xx]

This version of the motor protection switch has been discontinued and may need to be re-

placed with the new version "motor protection switch PKE32/XTU-32 assembly 3-

pin" [03098183-xx].

► Read also section 3.4.21 "Replacing the motor protection switch PKE32/

XTU-32" [}78] and the technical information "Product discontinuation of "Motor cir-

cuit breaker PKZ2 basic machine, 3-pin" [00342494-xx]" [TI2015-03D02] [EN:

TI2015-03E02].

Parts, equipment and tools

If you have supply voltages of 3x208 V~ and 3x230 V~, you will need to use the motor protection

trip block ZM-32-PKZ2 [00342496-xx].

●

Motor protection trip block ZM-16-PKZ2 [00342495-xx] (default)

●

Motor protection trip block ZM-32-PKZ2 [00342496-xx] (US version)

Overview

Fig.77: Motor protection switch

1. Locking tab

2. Rotary switch

3. Trigger threshold for overcurrent

(yellow setting disk)

4. Protective flap

5. Trigger threshold for short-circuit

current (red setting disk)

6. Motor protection trip block

3 Power supply

3.4 Power supply and transformer module (up to serial number Gxxx)

76 Service Manual SIPLACE X-Serie S 06/2019

Removal

► Switch off the machine, disconnect it from the power supply and secure it to prevent

unauthorized reactivation.

1.2 "Preparatory work..." [}16]

► Before you start working, check the power supply for absence of voltage and observe the

waiting times!

Fig.78: Position "0"

► Turn the switch(1) anticlockwise to the

position"0"

Fig.79: Swing open

► Open the protective flap(1).

Fig.80: Locking tab

► Use a screwdriver to push the yellow

locking tab(1) upwards.

Fig.81: Motor protection trip block

► Pull the motor protection trip block(1)

out.