Technical Specifications - hager MZ901 Notice D'utilisation

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Table Des Matières

Table des Matières

For the front functioning modes "off & on" and

"auto", the remote controls "on", "off", "reset" and

" are operational (input n°2 - n°8).

These control settings can be made operational by a

direct contact such as a pushbutton

or closing switch (e.g. automation, supervisor, clocks

etc.).

"on" remote control (input n°2)

It is jammed when:

• The selector or the controls activate "reset" or

" functions,

• Safety time delay is in progress,

• Trippings = 3 (end of cycle)

• The contacts are soldered.

"off" remote control (input n°4)

Takes priority for "on" setting and automatic

reclosing.

It is jammed when:

• Selector activates the "reset" or "

• The contacts are soldered.

"reset" remote control (input n°6)

This control padlocks to the «on»position, the «off»

position and reinitialises the product.

The initialisation consists of resetting the number of

tripping and the time delay (3 mins or 30 secs).

This will remotely unjam the product.

" remote control (input n°8)

This control locks "on" and automatic reclosing.

"off" is available.

The product does not operate if this control

is not connected (minimum).

Side selector "time set"

Time delay of 3 mins is recommended for

associated products before activating either remote

control setting "on" or automatic reclosing. Even if

it the device is reset before 3 mins the action will

be delayed.

However, for specific installations, when a continuity

of service is required, the side selector can be set at

30 secs (except for MCBs and RCBOs).

Supervision

"a" and "b" signal outputs

If "a" and "b" are closed (the position of the

associated product or remote control auxiliary

handles is down), the cause could be:

• short-circuit, an overload or an earth leakage fault

(depending on the associated device),

• tripping = 3 (end of cycle).

If "a" and "b" are open (position of the handle

down or central), the cause could be:

• padlocking "

" position, or "reset" position

selected by either remote control or manually

• controlled device out of order,

• a safety time delay is in progress.

Indicator light c

The indicator light shows the state of the product

and allows a diagnosis.

We can distinguish 3 general cases:

• indicator light on, the product is operational,

• indicator light off, the product is not supplied,

• indicator light intermittent, the remote controls or

the automatic reclosing temporarily or permanently

jammed.

Caused by

- Front selector padlocking position selected

Remote control "reset" or "

- Timer delay activated

- 3 trippings end of cycle.

If a red intermittent light is present, the controlled

device is out of order.

" functions,

’

" positions selected

Particular functioning modes

Power interruption

When the power is interrupted, the product

saves its state (time delays, handle position

and number of trippings) in order to reset when

the power supply returns.

During the interruption, the indicator light and

the contacts "a" and "b" are open.

If a control disappears during an interruption,

it is not executed when there is supply.

Soldered contacts on the associated product

In this case, the handle of the remote auxiliary

positions itself in the centre as the handle of

the associated device.

This state is indicated by:

• "a" and "b" contacts opening,

• the indicator light is intermittent red.

Forced remote closing

When "on" or automatic reclosing are jammed,

the controled device has tripped 3 times or a

time delay (3 mins or 30 secs) is present, it is

possible to reactivate them.

To unjam "on" remotely, we must activate

"reset".

To unjam locally, we must hold the side

selector in "reset" position (for 5 s) until a

green indicator light appears.

To reinitialise the automatic resetting remotely,

activate "reset" and then "on".

To reinitialise locally, hold the side selector in

the "reset" position (for 5 secs) until a green

indicator light appears.

Remote control impossible when tripping

(overload or short-circuit)

It is impossible to impose a manual setting

after tripping. To reset, cable the contacts "a"

and "b" in order and connect them on "reset"

control (input n°6)

Auxiliaries CZ001, MZ201 to MZ209:

These products do not operate with MZ901

and MZ911.