Max HN50 Service Manual download pdf (Page 8)

Fail-safe condition Alarm condition

PVG CIP Prof 1 CIP PVG CIP

8 HN.50.Y1.02

Safety aspects Both PVG CIP and Prof 1 CIP are designed to

give maximum safety. They both incorporate

self-test functions, signal protection and

‘watchdogs.

The self-test is performed when power is

applied and before any of the PVE outputs are

activated. The unit then goes to the operating

function and a series of running tests are

carried out. A list of these tests is given below.

Self-tests

PVG CIP Prof 1 CIP

1. Internal RAM test

2. External RAM test

3. EE-PROM test

4. FLASH test

5. Test of feedback monitoring (tests all outputs

for short-circuiting to earth and U

dc

)

1. Watchdog

2. PVEH alarms

3. Signal protection

1. Watchdog

2. Potentiometer control

1. Internal RAM test

2. EE-PROM test

3. FLASH test

Running tests

PVG CIP Prof 1 CIP

As analog version

Environmental/mechanical

Proportional signals max. 4

Resolution 9 bit (-100% to +100%)

Operating buttons on/off max. 6

DIP switch settings DIP no. 1

Open = CANopen min. master

Closed = CANopen slave

DIP switch settings DIP no. 2

Open = Default baudrate and Node id

Closed = Baudrate and Node id acc. to OD

AMP part no. 282404-1, male plug

Plug type

AMP part no. 282403-1, female plug

Only part no. 282404-1

and no. 282107-1 supplied

AMP 282107-1, tab house

AMP 282089-1, plug house

Seals and plugs

Electrical

Prof 1 CIP specification

Pin number Name

1 CAN_TERM

2U

dc

3 Frame

4 CAN+

5 CAN-

Plug connections

To ensure optimum system function, two safe-

ty levels are used:

• Fail-safe condition

• Alarm condition

Alarm signal sent on bus so that

a third unit is able to take appro-

priate action.

Depending on OD-index 2108

subindex 1, PVPX/PVPE dump

valve dumps pressure in alarm

condition. Because this is an NO

valve (normally open) voltage

must be cut off.

Neutral position signal sent from

the joystick to all PVEs.

Alarm signal sent on bus so that

a third unit is able to take appro-

priate action.

PVE forced to neutral position.

Voltage supply to PVE cut off.

Alarm signal sent on bus so that

a third unit is able to take appro-

priate action.

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