User Manual PISA-M

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Intended Use.......................................................................................................................................................................
Factory Settings...................................................................................................................................................................
Front Side and User Elements...........................................................................................................................................
Output Channel Status LEDs..............................................................................................................................................
Turn Output Channels ON or OFF.....................................................................................................................................
Check Current Tripping Setpoint of Each Output Channel.............................................................................................
Set Current Tripping Setpoint of Each Output Channel.................................................................................................
Set Tripping Characteristic of the Output Channels........................................................................................................
Change Power Supply Overload Protection.....................................................................................................................
Set Button Reaction Style..................................................................................................................................................
Reset Tripped Output Channels........................................................................................................................................
11.1 Remotely Reset via Control Input..........................................................................................................................
11.2 Manually Reset at Front Side User Elements........................................................................................................
12 Select Communication Mode.............................................................................................................................................

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1.

Intended Use

This user manual offers instructions on how to use the local user interface to configure the PISA-M electronic circuit breaker.
Configurable product properties• Current tripping setpoint independent for each output channel(Adjustable only on the PISA-M-4ADJ model. All PISA-M-40x versions have fixed current tripping setpoints)• Fast / slow tripping characteristic• Button reaction style• Signaling and communication features• Power supply protection
The LEDs next to the Channel Control Buttons show the status of each output channel.

iSymbols explainedi

NOTE: Additional information
CCB

Action step
Positive result
Channel Control Button2.
••
•
•
•

Factory Settings
All output channels: ON
Tripping characteristic: Fast
Button reaction style: Standard
Status Signal Output: Switch closes
Tripping setpoints of the output channels according to ordered product version

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Front Side and User Elements
AInput Terminals
Identical poles are internally connected.
1.1(+) Input 12 - 24V / 20A
1.2(-) Input
1.3(-) Input

BOutput Terminals
2.1(+) Output Channel 1
2.2(+) Output Channel 2
2.3(+) Output Channel 3
2.4(+) Output Channel 4

C

Control Signal Input
3.1(+) Signal input positive pole3.2(-) Signal input negative (return) pole
Signal output can be set to several operation modes.

DStatus Signal Output
3.3(+) Signal output positive pole3.4(-) Signal output negative (return) pole
Signal input can be used to send reset signal (1 sactive) or for data communication using Digital CodedInterface.

PISA-M User Manual:Jun. 2024 / Rev. 1.1

E/FChannel Control Buttons (CCB) and Status LEDs
1CCB1 and LED 1
2
CCB2 and LED 2
3
CCB3 and LED 3
4
CCB4 and LED 4

G

QR code for direct access to documentation.

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4.

Output Channel Status LEDs
The device front shows four LEDs – one per output channel.
The LEDs indicate the status of each output channel.
Green:
Output channel ON
Yellow:
Output channel overload – prewarning before channel is triggered
Red:
Output channel turned OFF (manually or remotely)
Red (flashing):
Output channel tripped due to overload of this channel
Red (double-flashing):
Output channel tripped due toa) device overload protection
total output current > 20 A for > 2 sb) power supply protection mode activatedYellow (flashing):
For details see following configuration settings
LED OFF:
Device not powered

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5.

Turn Output Channels ON or OFF

Each output channel can be switched ON and OFF individually.
The required duration of button press can be configured, see chapter 10 “Button Reaction Style”.
• Output channel is ON• Output channel is OFF→→

LED lights up green
LED lights up red Press the Channel Control Button (CCB) for the output channel to bemodified depending on the selected button reaction style: 50 ms in standard mode or 1 s in long press mode The output channel will switch between ON and OFF.

6.

Check Current Tripping Setpoint of Each Output Channel

Each LED indicates the current tripping setpoint for each output channel.
For example: LED 1 shows setting of output channel 1.
1. The number of flashes indicates current setting in ampere.
For example: LED 1 flashes 4 x, set current tripping setpoint for output channel 1 is 4 A.
2. The sequence will be shown two times.
3. The device exits the checking mode and will return to regular operation.
 Press CCB1 and CCB4 simultaneously for 50 ms.
 Each LED will indicate the current tripping setpoint for each output channel
by flashing green.
iPISA-M User Manual:Jun. 2024 / Rev. 1.1

Pressing any button during LED flashing stops the checking mode
immediately.

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7.

iSet Current Tripping Setpoint of Each Output Channel• Only adjustable on PISA-M-4ADJ• All other PISA-M-40x versions come with four fixed output channels which cannot be adjusted.
• The device will exit setting mode automatically after 10 s inactivity.

The PISA-M-4ADJ allows individual adjustment of the tripping current of each output channel.
Each output channel can be set independently to 1, 2, 3, 4, 6 or 8 A.

 Press CCB1 and CCB4 simultaneously for 1 s.
 All LEDs will turn yellow to indicate the present setting mode.

 Select the output channel to be set by pressing the related CCB for 50 ms
within 10 s.
 The associated LED starts flashing yellow.
i

The number of flashes show the set value in ampere, e.g. 4 x flashing = 4 A.

 To change the current limit press the related CCB x times for 50 ms within 4 s.
i

Number of pushes equals set current in ampere.

 The associated LED flashes yellow according to the presently selected current
in ampere.
iThe new set value is not stored automatically.

 To store the new set current for the selected output channel press the related
CCB for 1 s.
 The associated LED flashes green according to the now stored current setting
in ampere.
iRepeat these steps until all output channels have been set to requiredvalues.

 To exit setting mode press CCB1 and CCB4 simultaneously for 50 ms.

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8.

iSet Tripping Characteristic of the Output Channels• The tripping characteristics can be uniformly configured as slow or fast for all output channels on all PISA-Mversions.
• The device will exit setting mode automatically after 4 s inactivity.

 Press CCB1 and CCB3 simultaneously for 50 ms.
 The LEDs 1 to 4 will show present setting using a running light:• Slow tripping characteristic is indicated by a slow running light.
• Fast tripping characteristic is indicated by a fast running light.

 To select tripping characteristic press CCB1 and CCB3 simultaneously for
50 ms within 4 s.
 The LEDs 1 to 4 will show updated setting.
iThe setting is saved automatically.

 To exit setting mode press any button (except CCB1 and CCB3simultaneously).

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9.

Change Power Supply Overload Protection

The PISA-M offers a Power Supply Overload Protection to avoid voltage dips caused by overloaded output channels.
To ensure high flexibility for different types of loads, the sensitivity of the Power Supply Overload Protection can beconfigured.
The following modes are available:• High sensitivity: For sensitive loads such as PLC controller or sensors. The overloaded output channel will trip if thesupply voltage falls below the activation threshold for > 0.4 ms.
• Low sensitivity: For capacitive loads and devices which are not sensitive to short voltage drops. The overloaded
output channel will trip if the supply voltage falls below the activation threshold for > 2 ms.
• Disabled: The Power Supply Protection Mode can be turned off. Use this mode for huge capacitive loads and devices
which are not sensitive to supply voltage dips.
 Press CCB1 and CCB2 simultaneously for 1 s.
 The LEDs 1 to 4 will show the present setting.
Option 1:
Option 2:
Option 3:
iHigh sensitivity
Low sensitivity
Disabled

LED 1 + LED 2 + LED 3 green
LED 2 + LED 3 + LED 4 green
LED 2 + LED 3 green

The device will exit the setting mode automatically after 4 s inactivity.

 To change the setting press CCB1 and CCB2 simultaneously for
50 ms within 4 s.
 The LEDs 1 to 4 show the updated setting.
i

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The setting is saved automatically.

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10. Set Button Reaction Stylei• Affects all Channel Control Buttons.
• The device will exit setting mode automatically after 4 s inactivity.

The required duration of button press to turn an output channel ON or OFF can be configured.
In standard mode an output channel is switched ON or OFF by pressing the related CCB for 50 ms.
In long press mode an output channel is switched ON or OFF by pressing the related CCB for 1 s.

Check the currently set button reaction style: Press CCB2 and CCB3 simultaneously for 50 ms.
 The LEDs 1 to 4 will show the present settings.

Standard mode

LED 1 and LED 2 green
LED 3 and LED 4 OFF

Long press mode

LED 1 and LED 2 OFF
LED 3 and LED 4 green

 To change the button reaction style press CCB2 and CCB3 simultaneously for
50 ms within 4 s.
 The LEDs will show the updated setting.
iThe setting is saved automatically.

 To exit setting mode press any button (except CCB2 and CCB3simultaneously).

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11. Reset Tripped Output Channels
11.1.

Remotely Reset via Control Input

Tripped output channels can be reset via the control input pin 3.3 (+) and 3.4 (-) once the root-cause of the tripped output
channel has been resolved. To reset, a voltage between 10-30 Vdc must be applied to the control input for ≥ 1 s.

i

11.2.
i

• Make sure that the current sum is ≤ 20 A and no output channel is overloaded.
• The Remote-Reset Signal (10-30 V for ≥ 1 s) does not work if communication mode is set to bidirectional
Digital Coded Interface, see product datasheet for details.
• The Reset Signal does only reset tripped output channels. Output channels that are manually turned off will
not be reactivated.

Manually Reset at Front Side User Elements
Make sure that the current sum is ≤ 20 A and no output channel is overloaded.

Tripped output channels can be reset via the Front Side User Elements once the root-cause of the tripped output channel
has been resolved.

 To reset an overloaded output channel press the related CCB for 1 s.
 The associated LED will turn green.

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The device will exit setting mode automatically after 4 s inactivity.

The device is equipped with two signal ports. Signal status output (pin 3.1 – 3.2) and signal control input (pin 3.3 – 3.4).
These ports can be configured as follows:
Tripping Alarm:
Switch closes when at least one or more output channels are tripped.
• Status Signal Output ON →• Status Signal Output OFF →one or more output channels are tripped
no output channel tripped

Digital Coded Interface (DCI):
For more detailed information regarding DCI mode, please refer to the product datasheet.
Output Channel Off Alarm:
Switch closes when one or more channels are tripped or manually turned off.
• Status Signal Output ON →• Status Signal Output OFF →one or more output channels are tripped / turned off
all output channels are turned on

OK-Signal:
Switch closes if all output channels are turned on.
• Status Signal Output ON →• Status Signal Output OFF →all output channels are turned on
one or more output channels are tripped / turned off

 Press the buttons CCB2 and CCB4 simultaneously for 50 ms.
 The LEDs 1 to 4 will show present setting.

PISA-M User Manual:Jun. 2024 / Rev. 1.1

Tripping Alarm

LED 1 green
all other LEDs OFF

Digital Coded Interface(DCI)

LED 2 green
all other LEDs OFF

Output Channel OffAlarm

LED 3 green
all other LEDs OFF

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OK-Signal

LED 4 green
all other LEDs OFF

Not assigned toapplication interface reserved for update tobus interface

LED 1 + LED 3 green
all other LEDs OFF

 To select next communication mode press CCB2 and CCB4 simultaneously for
50 ms within 4 s.
 The LEDs will show updated setting.
iThe setting is saved automatically.

 To exit setting mode press any button (except CCB2 and CCB4
simultaneously).

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