Puls PISA-B-812-B1 User manual

PISA-B-812-B1
PISA-B-812-B4
Apr. 2021 / Rev. 0.1 DS-PISA-B-812-Bx-xx-EN www.pulsp wer.c m 1 / 20
All parameters are specified at 24Vdc input v ltage, 8x5A utput currents, 25°C ambient and after a 5 minutes run-in time unless therwise n ted.
ELECTRONIC FUSE
8X 24V, 2X 1-12A, 6X 1-10A
•Eight Current C ntr lled Outputs
•Adjustable Output Currents f r Each Channel
•Selective Tripping f Overl aded Channels
•C mpatible even with large Capacitive L ads
•Output Currents Displayed Live n LED Matrix
•Rem te Reset r Reset via Pushbutt ns
•C mm n Signaling Relay C ntact f r Tripped
Channels (PISA-B-812-B1)
•Digital C ded Signal Output f r Tripped Channels
(PISA-B-812-B4)
•Parameter Settings can be L cked by PIN-C de
•ON/OFF Feature f r Each Individual Output
•Easy Wiring - Distributi n Terminals f r Negative P le
•3 Year Warranty
GENERAL DESCRIPTION SHORT-FORM DATA
The PISA-B devices are DIN rail m untable
eight channel pr tecti n m dules with integrated
electr nic fuses f r 24V systems. They distribute the
current f a large p wer s urce t eight utput
channels each f l wer current and theref re all wing
f r smaller wires t be used.
The utput current f each channel can be set
individually. Channel 1 and 2 are ptimized f r l ads
with large input capacitances. C nnect such l ads t
these channels t av id false tripping r unexpected
switch- ff such l ads.
The PISA-B-812-B1 is equipped with a c mm n
tripping signaling relay c ntact that rep rts tripped
channels, while the PISA-B-812-B4 has a digital c ded
signal utput built in f r this functi n.
All PISA-B devices are equipped with push-in
terminals, which are ptimized f r aut mated wiring.
The mechanically r bust h using is made f a high-
grade, reinf rced m lded material n the fr nt and
f an aluminum b dy, which permits surr unding
temperatures up t +70°C.
Input v ltage DC 24V -20%/+25%
Required input v ltage
f r turning- n f utputs
19.6Vdc
Input current 40A
Internal c nsumpti n 40mA PISA-B-812-B1
35mA PISA-B-812-B4
Adjustable
1/2/3/4/6/8/10/12A CH1 and CH2
N minal utput current
1/2/3/4/6/8/10A CH3 t CH8
40A Bel w +60°C ambientSum current all channels
30A At +70°C ambient
Derate between +60°C and +70°C
Current limitati n
CH1-CH2 200% F r 1A setting
150% F r 2 - 8A settings
130% F r 10 - 12A settings
CH3-CH8 50A
Tripping characteristics Sl w r Fast Selectable
Tripping delay
CH1-CH2 2ms – 2s At sh rt circuit
CH3-CH8 <10ms At sh rt circuit
CH1-CH8 1.1s F r sl w tripping at 1.5x
n minal current
CH1-CH8 0.22s F r fast tripping at 1.5x
n minal current
Max l ad capacitance capability
CH1-CH2 100mF Per channel
CH3-CH8 20mF Per channel
V ltage dr p per channel
CH1-CH2 125mV F r 10A l ad
CH3-CH8 165mV F r 10A l ad
Standby l sses 1W
P wer l sses 10.8W At 8x 5A l ad
Temperature range -25°C t 70°C
Size (w x h x d) 52x124x130mm With ut DIN rail
Weight 370g / 0.82lb
ORDER NUMBERS MAIN APPROVALS
Description: Electr nic Fuse PISA-B-812-Bx-xx
Order Number:
PISA-B-812-B1 C mm n signaling relay c ntact
PISA-B-812-B4 Digital c ded signal utput
Accessories:
BUS-BAR1-L1 2: A set f r 2 m dules
BUS-BAR1-L155: A set f r 3 m dules
BUS-BAR1-L5 : Single piece L=500mm
F r details and a c mplete appr val list, see chapter 20.
UL 2367 UL 61010-2-201 IEC 61010
IEC 62368 planned

PISA-B-812-B1
PISA-B-812-B4
Apr. 2021 / Rev. 0.1 DS-PISA-B-812-Bx-xx-EN www.pulsp wer.c m 2 / 20
All parameters are specified at 24Vdc input v ltage, 8x5A utput currents, 25°C ambient and after a 5 minutes run-in time unless therwise n ted.
Index
1 Intended Use....................................................... 3
2 Installati n Instructi ns...................................... 3
3 Typical Wiring Scheme....................................... 4
4 DC-Input.............................................................. 5
5 Output................................................................. 5
6 Output Tripping Characterstics......................... 7
7 C ntr l and M nit ring Features..................... 8
8 Digital C ded Interface (PISA-B-812-B4)........... 11
9 Alarm Relay C ntact (PISA-B-812-B1)................ 11
10 Reset Input.......................................................... 11
11 Efficiency and P wer L sses.............................. 11
12 Functi nal Diagram............................................ 12
13 Fr nt Side And User Elements........................... 13
14 Terminals And Wiring........................................ 13
15 Lifetime Expectancy........................................... 14
16 MTBF.................................................................... 14
17 EMC..................................................................... 15
18 Envir nment....................................................... 16
19 Safety Features and Pr tecti n Features.......... 17
20 Appr vals and Fulfilled Standards.................... 18
21 Regulat ry C mpliance...................................... 18
22 Physical Dimensi ns And Weight...................... 19
23 Access ries.......................................................... 20
23.1 P wer C nnecti n - P wer-Bus-Bars...... 20
The inf rmati n given in this d cument is c rrect t the best f ur kn wledge and experience at the time f publicati n.
If n t expressly agreed therwise, this inf rmati n d es n t represent a warranty in the legal sense f the w rd. As the
state f ur kn wledge and experience is c nstantly changing, the inf rmati n in this data sheet is subject t revisi n. We
theref re kindly ask y u t always use the latest issue f this d cument (available under www.pulsp wer.c m).
N part f this d cument may be repr duced r utilized in any f rm with ut ur pri r permissi n in writing.
Packaging and packaging aids can and sh uld always be recycled. The pr duct itself may n t be disp sed f as d mestic
refuse.
TERMINOLOGY AND ABBREVIATIONS
DC 24V A figure displayed with the AC r DC bef re the value represents a n minal v ltage with
standard t lerances (usually ±15%) included.
E.g.: DC 12V describes a 12V battery disregarding whether it is full (13.7V) r flat (10V)
24Vdc A figure with the unit (Vdc) at the end is a m mentary figure with ut any additi nal
t lerances included.
may A key w rd indicating flexibility f ch ice with n implied preference.
shall A key w rd indicating a mandat ry requirement.
should A key w rd indicating flexibility f ch ice with a str ngly preferred implementati n.

PISA-B-812-B1
PISA-B-812-B4
Apr. 2021 / Rev. 0.1 DS-PISA-B-812-Bx-xx-EN www.pulsp wer.c m 3 / 20
All parameters are specified at 24Vdc input v ltage, 8x5A utput currents, 25°C ambient and after a 5 minutes run-in time unless therwise n ted.
1. Intended Use
This device is designed f r installati n in an encl sure and is intended f r c mmercial use, such as in industrial c ntr l,
pr cess c ntr l, m nit ring and measurement equipment r the like.
D n t use this device in equipment, where malfuncti ning may cause severe pers nal injury r threaten human life with ut
additi nal appr priate safety devices, that are suited f r the end-applicati n.
If this device is used in a manner utside f its specificati n, the pr tecti n pr vided by the device may be impaired.
2. Installati n Instructi ns
DANGER Risk of electrical shock, fire, personal injury or death.
– Turn p wer ff bef re w rking n the device. Pr tect against inadvertent re-p wering.
– D n t pen, m dify r repair the device.
– Use cauti n t prevent any f reign bjects fr m entering the h using.
– D n t use in wet l cati ns r in areas where m isture r c ndensati n can be expected.
– D n t t uch during p wer- n, and immediately after p wer- ff. H t surfaces may cause burns.
Obey the following installation instructions:
This device may nly be installed and put int perati n by qualified pers nnel. This device d es n t c ntain serviceable
parts. If damage r malfuncti n sh uld ccur during installati n r perati n, immediately turn p wer ff and send unit
t the fact ry f r inspecti n.
Install the device in an encl sure pr viding pr tecti n against electrical, mechanical and fire hazards. Install the device
nt a DIN rail acc rding t EN 60715 with the input terminals n t p f the unit.
Up t eight devices can be c nnected via tw p wer-bus-bars, where nly ne device is c nnected t the p wer supply.
The p wer-bus-bars must be l ng en ugh t make a c nnecti n t all c ntacts f the devices.
Use an appr priately sized 24V p wer supply, which can deliver the peak current required t trip the l ad channels. If
peak currents are t l w, the supply v ltage f r the pr tecti n m dule can n l nger be maintained, which results in a
malfuncti ning f the pr tecti n m dule.
Make sure that the wiring is c rrect by f ll wing all l cal and nati nal c des. Use appr priate c pper cables that
are designed f r a minimum perating temperature f 60°C f r ambient temperatures up t +45°C, 75°C f r ambient
temperatures up t +60°C and 90°C f r ambient temperatures up t +70°C. Ensure that all strands f a stranded wire enter
the terminal c nnecti n.
The device is designed f r p lluti n degree 2 areas in c ntr lled envir nments. N c ndensati n r fr st is all wed. The
encl sure f the device pr vides a degree f ingress pr tecti n f IP20. The h using d es n t pr vide pr tecti n against
spilled liquids.
The is lati n f the devices is designed t withstand impulse v ltages up t 1.5kV acc rding t IEC 60664-1.
The input can be p wered fr m a regulated p wer supply r a similar DC s urce.
The input must be p wered fr m a PELV r SELV s urce in rder t maintain a SELV r PELV utput. Check f r c rrect input
p larity. The device will n t perate when the v ltage is reversed.
A disc nnecting means shall be pr vided f r the input f the device.
The device is designed as “Class f Pr tecti n III” equipment acc rding t IEC 61140.
The device is designed f r c nvecti n c ling and d es n t require an external fan. D n t bstruct airfl w and d n t
c ver ventilati n grid!
Keep the f ll wing minimum installati n clearances: 40mm n t p, 20mm n the b tt m, 5mm left and right side. Increase
the 5mm t 15mm in case the adjacent device is a heat s urce. Between multiple PISA-B m dules, n clearance is needed.
The device is designed f r altitudes up t 5000m (16 400ft).
The maximum surr unding air temperature is +70°C (+158°F). The perati nal temperature is the same as the ambient r
surr unding air temperature and is defined 2cm bel w the device. The device is designed t perate in areas between 5%
and 95% relative humidity.

PISA-B-812-B1
PISA-B-812-B4
Apr. 2021 / Rev. 0.1 DS-PISA-B-812-Bx-xx-EN www.pulsp wer.c m 4 / 20
All parameters are specified at 24Vdc input v ltage, 8x5A utput currents, 25°C ambient and after a 5 minutes run-in time unless therwise n ted.
3. Typical Wiring Scheme
One fuse m dule is suitable t distribute the current t 8 c nsumers. If there are m re than eight c nsumers, up t eight
fuse m dules can be used (64 c nsumers). The supply f the individual fuse m dules can be d ne by means f p wer-bus-
bars, which are available as access ry parts. The supply f the 24V is then nly d ne by ne fuse m dule, preferably in
the middle, because the current is then better distributed in b th directi ns and the permissible current f the p wer-bus-
bar f 32A is n t exceeded.
Fuse m dules can be lined up n the DIN rail with ut spacing. The p wer-bus-bars can be plugged in fr m the fr nt and
must have a length that all plug c ntacts f the m dules make a c ntact.
The (+) p le terminals f the l ads must be c nnected t the utputs f the fuse m dule. The fuse m dule als has a
distributi n f r the (-) p le c nnecti n. This internal distributi n can be used and reduces the wiring eff rt. H wever, an
external distributi n f the (-) p le c nnecti n may als be used, as sh wn in Fig. 3-2.
The channel 1 and 2 are ptimized f r l ads with large input capacitances. C nnect such l ads t these channels t av id
a false tripping r unexpected switch- ff f these channels.
Fig. 3-1: Typical wiring scheme f r ne fuse m dule (8 l ads) Fig. 3-2: Typical wiring scheme utilizing an external
distributi n terminal f r the negative p le
Fig. 3-3: Typical wiring scheme f r multiple m dules

PISA-B-812-B1
PISA-B-812-B4
Apr. 2021 / Rev. 0.1 DS-PISA-B-812-Bx-xx-EN www.pulsp wer.c m 5 / 20
All parameters are specified at 24Vdc input v ltage, 8x5A utput currents, 25°C ambient and after a 5 minutes run-in time unless therwise n ted.
4. DC-Input
The input can be p wered fr m a regulated p wer supply r a similar DC s urce. Use an appr priately sized p wer supply,
which can deliver the required utput current.
If a p wer supply with a c ntinu us utput current greater than 50A is used, a fuse r circuit breaker with 63A (B- r C-
Characteristic) must be c nnected between the p wer supply and the electr nic fuse m dule.
The c ntinu us v ltage between the input and gr und must n t exceed 60Vdc.
The input must be p wered fr m a PELV r SELV s urce r an “Is lated Sec ndary Circuit” in rder t maintain SELV r
PELV utputs.
Check f r c rrect input p larity. The device will n t perate when the v ltage is reversed.
Input v ltage n m. DC 24V -20%/+25%
Input v ltage range 19.2-30Vdc
typ. 19VdcInput v ltage required t
switch n the utputs max. 19.6Vdc
Input current max. 40A At fully l aded utputs
Stand-by current with n l ad current n the utputsInternal current
c nsumpti n typ. 40mA F r PISA-B-812-B1
typ. 35mA F r PISA-B-812-B4
5. Output
The utput can supply any kind f l ads, including inductive and capacitive l ads. The maximum size f capacitive l ads is
specified in the table bel w (see Tab. 5-1). Larger l ad capacit rs might result in an unintended turn- ff f the channel.
M re detailed inf rmati n regarding all wable capacitive l ads is available n request. If in d ubt r when y u d n t
kn w the input capacitance f y ur l ad, we rec mmend t perf rm tests with the real l ad.
Output channels can be switched n and ff separately by pushing the c rresp nding c ntr l butt n f r l nger than 50ms.
A switched ff channel is displayed with the upperm st red LED f the LED bar graph. Fact ry setting is that all channels
are switched n.
When the sum f the utput currents is greater than 40A, the device turns ff the utput channels ne by ne, starting
with the verl aded channels and f ll wed by CH8 t CH1, until the sum current is less than 40A.
Channels 1 and 2 have a current limited utput, while channels 3 t 8 have an vercurrent shutd wn behavi ur nly.
– D n t apply reverse v ltages fr m the l ad t the utput terminals that are higher than 30V and last l nger than 1s.
– D n t parallel utputs f r higher utput currents.
– D n t c nnect utputs in a series c nnecti n f r higher utput v ltages.
– D n t c nnect batteries f r charging purp ses t the utput f the device.
In rder t av id t high peak currents n the 24V supply when applying the 24V supply v ltage, the utput channels are
switched n in delayed steps. Channel 1 switches n after 50ms f ll wed by the remaining channels with a delay f 100ms
each. This scheme applies when all channels are switched n. Channels that are switched ff are skipped.
Fig. 5-1: Turn-On sequence after applying an input v ltage

PISA-B-812-B1
PISA-B-812-B4
Apr. 2021 / Rev. 0.1 DS-PISA-B-812-Bx-xx-EN www.pulsp wer.c m 6 / 20
All parameters are specified at 24Vdc input v ltage, 8x5A utput currents, 25°C ambient and after a 5 minutes run-in time unless therwise n ted.
Output v ltage n m. DC 24V The utput v ltage is equal t the input v ltage
minus the v ltage dr p f the m dule.
V ltage dr p per channel typ. 125mV F r CH1 r CH2 at 10A l ad when all ther channels
are n t l aded
typ. 190mV F r CH1 r CH2 when all channels are l aded with
5A
typ. 165mV F r CH3 t CH8 at 10A l ad when all ther channels
are n t l aded
typ. 210mV F r CH3 t CH8 when all channels are l aded with
5A
max. 40A Bel w +60°C ambientSum current f r all channels
max. 30A At +70°C ambient
n m. 1/2/3/4/6/8/10/12A F r CH1 and CH2Current settings per channel
n m. 1/2/3/4/6/8/10A F r CH3 t CH8
Fact ry setting 1A F r all channels
typ. 200% F r CH1 and CH2 in 1A settingCurrent limitati n
typ. 150% F r CH1 and CH2 in 2A t 8A settings
typ. 130% F r CH1 and CH2 in 10A and 12A settings
typ. 50A F r CH3 t CH8, independent f the settings
Channels 1 and 2 have a current limited utput, while channels 3 t 8 have
an vercurrent shutd wn behavi ur nly.
L ad capacitance capability max. 100mF F r CH1 and CH2 per channel
max. 20mF F r CH3 t CH8 per channel
Output leakage current max. 2mA Per channel, when CH1 and CH2 are switched ff
typ. 1.2mA Per channel, when CH1 and CH2 are switched ff
max. 50μA Per channel, when CH3 t CH8 are switched ff
Turn- n delay f utputs typ. 750ms Peri d between applying the input v ltage and
turning n all utput channels.
Tab. 5-1: Output data
D n t l ad the individual channels with higher average currents depending n the ambient temperature. Examples f
maximal average utput current per channel depending n the ambient temperature:
Ambient
Temperature
CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 Max. sum currents
of all channels
-25°C t +40°C 12A 12A 10A 10A 10A 10A 10A 10A 40A
+41°C t +50°C 10A 10A 10A 10A 8A 8A 8A 8A 40A
+51°C t +55°C 12A 12A 8A 8A 8A 8A 8A 8A 40A
+51°C t +55°C 10A 10A 2A 10A 2A 10A 2A 2A 40A
+56°C t +60°C 8A 8A 8A 8A 8A 8A 8A 8A 40A
+56°C t +60°C 12A 12A 6A 6A 6A 8A 8A 8A 40A
+61°C t +70°C 12A 12A 6A 6A 6A 6A 6A 6A 30A

PISA-B-812-B1
PISA-B-812-B4
Apr. 2021 / Rev. 0.1 DS-PISA-B-812-Bx-xx-EN www.pulsp wer.c m 7 / 20
All parameters are specified at 24Vdc input v ltage, 8x5A utput currents, 25°C ambient and after a 5 minutes run-in time unless therwise n ted.
6. Output Tripping Characterstics
The tripping current can be set individually f r all channels and the tripping characteristic can be set t Sl w r Fast as a
c mm n parameter f r all channels.
Tripping characteristic Sl w / Fast selectable, fact ry setting is Fast
Tripping delay typ. 1.1s F r all channels in Sl w m de at 1.5x n minal current
typ. 0.22s F r all channels in Fast m de at 1.5x n minal current
typ. 2ms – 2s F r CH1 and CH2 in sh rt circuit
max. 10ms F r CH3 t CH8 in sh rt circuit
The f ll wing curves sh w the let-thr ugh current areas, which are l cated t the left f the curves, and the tripping areas,
which are l cated t the right f the curves.
Fig. 6-1: CH1 and CH2 tripping diagrams in Sl w m de Fig. 6-2: CH1 and CH2 tripping diagrams in Fast m de
Fig. 6-3: CH3 t CH8 tripping diagrams in Sl w m de Fig. 6-4: CH3 t CH8 tripping diagrams in Fast m de

PISA-B-812-B1
PISA-B-812-B4
Apr. 2021 / Rev. 0.1 DS-PISA-B-812-Bx-xx-EN www.pulsp wer.c m 8 / 20
All parameters are specified at 24Vdc input v ltage, 8x5A utput currents, 25°C ambient and after a 5 minutes run-in time unless therwise n ted.
7. C ntr l And M nit ring Features
The LED matrix display pr vides inf rmati n ab ut measurement, set parameters and err rs and c ntains tw m des. T
switch between the tw m des, the measurement m de and the parameter m de, push the SET butt n and the channel
c ntr l butt n 4.
Fig. 7-1: C ntr l and m nit ring elements
Special Key Combinations
Special sh rtcuts all w quick access t certain inf rmati n:
Press SET + CCB1 butt n: L ck/Unl ck setting with PIN
Press SET + CCB2 butt n: Sh w FW versi n
Press SET + CCB3 butt n: Sl w/Fast m de
Press SET + CCB4 butt n: Measurement/Parameter m de
Measurement Mode
The “%” scale n the left side f the LED Matrix is used in this m de, which is als indicated by the triangular LED bel w
the LED matrix display. In this m de the actual current values are sh wn and the LED matrix display als sh ws, if a channel
has switched ff due t a t high current r n purp se.
– One r m re green/yell w LEDs are n: These LEDs indicate the actual channel current in percent f the set value. Peak
values are st red in a peak detect r and are additi nally sh wn with ne LED f r a sh rt peri d f time.
– Upperm st LED is red: This indicates a switched ff channel. T switch the channel back n, the c rresp nding channel
c ntr l butt n must be pressed f r at least 50ms. A further push switches the channel ff again.
– Upperm st LED is single flashing in red (2Hz): This indicates that a channel has switched ff due t t high current. A
restart can be d ne either by a butt n n the unit r by a c ntr l signal. Theref re, push the c rresp nding channel
c ntr l butt n f r l nger than 1s r apply a v ltage between 10 and 30Vdc (max. 6mA current c nsumpti n) f r l nger
than 1s t the reset input. The reset input is galvanically is lated fr m the rest f the device.
– Upperm st LED is d uble flashing in red: This indicates that a channel has switched ff because the t tal current f the
m dule exceeds 40A. In such cases, first the verl aded channels are switched ff, then channels 8 t 1 in descending
rder.
– Display f the settings f r tripping currents and tripping characteristic: Push the SET butt n f r m re than 50ms. First the
tripping currents are displayed, f ll wed by the tripping characteristic with the letter “F” (f r fast tripping) r “S” (f r
sl w tripping). This functi n ends aut matically after 5s.

PISA-B-812-B1
PISA-B-812-B4
Apr. 2021 / Rev. 0.1 DS-PISA-B-812-Bx-xx-EN www.pulsp wer.c m 9 / 20
All parameters are specified at 24Vdc input v ltage, 8x5A utput currents, 25°C ambient and after a 5 minutes run-in time unless therwise n ted.
Parameter Mode
The “A” scale n the right side f the LED Matrix is used in this m de, which is als indicated by the triangular LED bel w
the LED matrix display. In this m de the set values f r the tripping currents f r each individual channel are displayed and
the LED matrix display als sh ws if a channel has switched ff due t a t high current r n purp se.
– Displaying f the set current: The green LED sh ws the set current f the individual channel.
– Displaying f the tripping characteristic: Push the SET butt n. The selected characteristic is sh wn n the LED matrix f r
2 sec nds. Letter F indicates the fast and the letter S the sl w tripping characteristic.
– Red LEDs: These indicate a switched ff r verl aded channel and include the same LED blinking pattern and push-
butt n behavi r as in the measurement m de. If a channel is set t 12A, the LED bel w the upperm st LED will display
this switched- ff inf rmati n.
Changing of Trip Currents and Trip Characteristic
Fact ry settings are that all channels are turned n with a 1A setting in a fast tripping characteristic and in measurement
m de. Parameters can be changed in the measurement m de as well as in the parameter m de. Parameters can be changed
regardless f whether a channel is switched ff r n t.
– Changing the current settings: Press and h ld the SET butt n f r at least 1s. The triangular green "A" LED starts flashing.
After that, sh rtly tap the channel c ntr l butt n multiple times t adjust the current step by step. When the desired
setting is f und, press the SET butt ns f r m re than 50ms t save the setting. This m de ends aut matically 10 sec nds
after n m re butt ns are pushed. In case the settings are n t saved by pressing the SET butt n, changes f tripping
currents are n t st red.
– Changing f the tripping characteristic (sl w r fast): T change the characteristic f r all channels push the SET and the
channel c ntr l butt n 3 at the same time. The selected characteristic is sh wn n the LED matrix f r 2 sec nds and
st red aut matically. Letter “F” indicates the fast and “S” the sl w tripping characteristic.
Tripping currents and characteristic setting can be pr tected against changes with a PIN c de. T l ck the settings push the
SET and channel c ntr l butt n 1 until the unit sh ws a m ving text “PIN TO LOCK”. Enter a 4-digit PIN by pushing any
c mbinati n f channel c ntr l butt ns 1-8. Push the SET butt n t save the PIN, the unit sh ws a m ving text “LOCKED”.
T unl ck settings push the SET and channel c ntr l butt n 1, the unit sh ws a m ving text “PIN TO UNLOCK” and enter
the 4-digit PIN y u selected and c nfirm it by pushing the SET butt n.
F r LED pattern examples, please refer t Fig. 7.2 and Fig. 7.3.

PISA-B-812-B1
PISA-B-812-B4
Apr. 2021 / Rev. 0.1 DS-PISA-B-812-Bx-xx-EN www.pulsp wer.c m 10 / 20
All parameters are specified at 24Vdc input v ltage, 8x5A utput currents, 25°C ambient and after a 5 minutes run-in time unless therwise n ted.
LED pattern example
Fig. 7-2: LED Light pattern in measurement m de Fig. 7-3: LED Light pattern in parameter m de
Description:
Channel 1 is l aded with 40-60% f the set current
Channel 2 has tripped due t ver current
Channel 3 is turned ff n purp se (with push-butt n)
Channel 4 is l aded with 80-100% f the set current
Channel 5 is turned ff n purp se (with push-butt n)
Channel 6 is l aded with 40-60% f the set current current
Channel 7 is l aded with 0-10% f the set current current
Channel 8 has tripped due t ver current
Description:
Channel 1 is set t 12A but turned ff with push-butt n
Channel 2 is set t 4A but has tripped due t ver current
Channel 3 is set t 6A and utput is n
Channel 4 is set t 8A, but has tripped due t ver current
Channel 5 is set t 2A but turned ff with push-butt n
Channel 6 is set t 10A and utput is n
Channel 7 is set t 1A and utput is n
Channel 8 is set t 3A but has tripped due t ver current