Marway Optima 532 Series User manual

Optima™532 Series
Power Distribution Units
Operating Guide and Reference
Sep 2021 : P/N 501034-000 Rev C

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Optima 532 Series
1General 3
1.1 Documentation Symbols (EN)................................................ 3
1.2 Safety Notices (EN)................................................................. 3
1.3 Symboles de Documentation (FR)......................................... 4
1.4 Avis de sécurité (FR)............................................................... 4
1.5 General Description ............................................................... 5
1.6 Product Models....................................................................... 5
1.7 Product Ratings ...................................................................... 6
2Installation 7
2.1 Installation Notes.................................................................... 7
3Operation 8
3.1 Startup .................................................................................... 8
3.2 Breaker Controls..................................................................... 8
3.2.1 Main Breaker................................................................... 8
3.2.2 Branch Breakers ............................................................. 8
3.2.3 Controls Breaker ............................................................. 9
3.3 EPO Controls........................................................................... 9
3.3.1 Remote Mode Switch...................................................... 9
3.3.2 Remote Bus Connectors...............................................10
4Reference 11
5 Specications 12

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Optima 532 Series
1 General
1.1 Documentation Symbols (EN)
Safety and warning notices as well as general notices in this document are shown in a box with a symbol as follows:
Symbol for a life threatening danger.
Symbol for general safety notices (instructions and damage protection bans) or important
information for operation.
Symbol for general notices.
1.2 Safety Notices (EN)
Mortal danger - Hazardous voltage
• This product is classied as pluggable equipment. The mains inlet plug serves as the disconnect
device. The mains inlet plug shall be installed so that it is easily accessible.
• This product is equipped with a safety ground connection through the mains inlet plug, as well as
a redundant chassis ground screw on the rear panel. Ensure that the product is properly grounded
before applying power.
• Disconnect all power to the product prior to servicing control signal cabling.
• Do not open this product as it contains no user serviceable parts inside. All service concerns
should be directed to Marway Power Solutions.
• If this product is used in a manner which does not comply with this instruction manual, the
protection provided by the equipment may be impaired.
• All work on connections must be carried out under zero voltage (output disconnect), and may only
be performed by qualied and informed persons. Improper actions can cause fatal injury as well as
serious material damage.
• This product is intended for indoor use only and should not be exposed to excess moisture. Avoid
any use of liquids near the equipment, and condition which cause condensation.
• This product is intended for installation in a restricted access location by a skilled person.
• This product is intended for use by an instructed person.
• The equipment is only approved for use within the connection limits stated on the product label.
• The ratings for all output receptacles are marked on the chassis. Be sure to observe the ratings for
all connected load equipment.

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Optima 532 Series
1.3 Symboles de Documentation (FR)
Les consignes de sécurité et avertissements, ainsi que les avis généraux gurant dans ce document sont présentés dans
un encadré avec un symbole, comme illustré ci-dessous.
Symbole pour les avis de danger potentiellement mortel.
Symbole pour les avis de mise en garde pour la sécurité personnelle ou pour la protection de
l’équipement.
Symbole pour les avis importants concernant le fonctionnement.
1.4 Avis de sécurité (FR)
Danger de mort – Tension dangereuse
• Ce produit est classé comme un équipement enchable. La prise d’alimentation secteur sert de
dispositif de déconnexion. La prise d’alimentation secteur doit être installée de manière à être
facilement accessible.
• Ce produit est équipé d’une mise à la terre de sécurité via la prise d’alimentation secteur,
ainsi que d’une vis redondante de mise à la terre du châssis. Assurez-vous que le produit est
correctement mis à la terre avant de le mettre sous tension.
• Débranchez toute alimentation électrique du produit avant d’effectuer l’entretien du câblage des
signaux de commande.
• N’ouvrez pas ce produit, car il ne contient aucune pièce réparable par l’utilisateur. Tous les
problèmes de service doivent être adressés à Marway Power Solutions.
• Si ce produit est utilisé d’une manière non conforme au présent manuel d’instructions, la
protection fournie par l’équipement peut être compromise.
• Tous les travaux sur les connexions doivent être effectués sous une tension nulle et ne doivent
être effectués que par des techniciens qualiés et compétents. Des actions inappropriées peuvent
entraîner des blessures mortelles et des dommages matériels graves.
• Ce produit est conçu pour une utilisation à l’intérieur uniquement et ne doit pas être exposé à
une humidité excessive. Évitez toute utilisation de liquides à proximité de l’équipement et les
conditions susceptibles de provoquer de la condensation.
• Ce produit est destiné à être installé par une personne qualiée dans un endroit à accès restreint.
• Ce produit est destiné à être utilisé par une personne qui a reçu des instructions appropriées.
• L’utilisation de l’équipement est approuvée uniquement dans les limites de connexion indiquées
sur l’étiquette du produit.
• Les valeurs nominales de toutes les prises de sortie sont indiquées sur leur boîtier. Assurez-vous
de respecter les valeurs nominales de tous les équipements de charge raccordés.

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Optima 532 Series
1.5 General Description
The Optima 532 Series (model numbers MPD 532XXX) is a family of thirty power distribution units (PDUs) designed for
use with 120/208 Vac 3-phase supply power.
Each PDU receives mains power through a NEMA L21-30P inlet located on either the front or rear panel depending on the
model. Power is distributed as 120 and/or 208 Vac through four branch circuits, each outtted with a variety of optional
outlets.
All models include an EMI lter, surge suppression, and remote-EPO feature. Circuit 1 of all models includes one
unswitched NEMA 5-20R duplex receptacle (J1) which is not controlled by the remote-EPO feature. Circuits 2–4 are a
combination of either a 5-20R or 6-20R duplex, along with one twist lock receptacle (L5, L6, or L21).
All models are constructed of a steel chassis, and designed for xed mounting within a 2U rack space in an EIA-310
compliant rack enclosure.
1.6 Product Models
Models are primarily organized by what type of power inlet they have. Then by the outlet congurations. All models have a
continuous duty rating of 24 A per phase at the inlet (30 A maximum).
Inlet Configurations Outlet Configurations
Front
Panel
Straight*
Front
Panel
Angled*
Rear
Panel
Straight*
Straight Blade
Duplex Twist Lock
5-20R 6-20R L5-20 L5-30 L6-20 L6-30 L21-30
532000 532010 532020 4 3
532001 532011 532021 4 3
532002 532012 532022 4 3
532003 532013 532023 4 3
532004 532014 532024 4 3
532005 532015 532025 1 3 3
532006 532016 532026 1 3 3
532007 532017 532027 1 3 3
532008 532018 532028 1 3 3
532009 532019 532029 1 3 3
* Each model has one of two “dash number” designators:
• –000 = the remote EPO is a Normally Open (N.O.) type
• –001 = the remote EPO is a Normally Closed (N.C.) type

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Optima 532 Series
1.7 Product Ratings
By model number, the following are the corresponding inlet and outlet ratings.
Inlet Rating Outlet Ratings
NEMA L21-30P
120/208VAC
3ɸ4P5W
50/60Hz
24 A continuous
30 A maximum
120 Vac, 1ɸ, 16 A continuous (20 A max.) per NEMA 5-20R duplex receptacle
208 Vac, 1ɸ, 16 A continuous (20 A max.) per NEMA 6-20R duplex receptacle
120 Vac, 1ɸ, 16 A continuous (20 A max.) per NEMA L5-20R receptacle
120 Vac, 1ɸ, 24 A continuous (30 A max.) per NEMA L5-30R receptacle
208 Vac, 1ɸ, 16 A continuous (20 A max.) per NEMA L6-20R receptacle
208 Vac, 1ɸ, 24 A continuous (30 A max.) per NEMA L6-30R receptacle
120/208 Vac, 3ɸ, 24 A continuous (30 A max.) per NEMA L21-30R receptacle
24 A continuous (30 A max.) total per phase regardless of receptacle combination
(Outlet combinations are for connection exibility, not for increased current capacity.)

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Optima 532 Series
2 Installation
2.1 Installation Notes
The following guidance must be followed for proper installation of the product.
1. Mounting: This product is designed for mounting in an EIA-310 compliant 19” rack. The user is responsible for
ensuring the mounting method provides adequate structural support for the product, and any attached cables.
The user is also responsible for ensuring the mounting location provides adequate ventilation to dissipate heat
generated during operation of the product. Ensure the product is securely mounted before applying power.
2. Chassis ground: The rear of the chassis includes a redundant chassis ground screw and ground wire. If desired for
your installation location, connect the chassis ground wire to the rack cabinet using an appropriate fastener.
3. Optionally, connect the appropriate cables between the PDU outlets and the equipment being powered by the PDU.
This may be done later according to the startup procedures suitable to the end-user’s equipment and application.
4. If applicable, connect the cabling between the PDU and remote EPO control panel.
5. PDU Main Breaker: Ensure the Main Breaker on the front of the PDU is in the off position before connecting the
PDU’s inlet cable to the facility power source. (It is best to switch all breakers to the off position.)
6. Facility Power Source: The three-phase facility power source for this product must include an overcurrent protective
device with a maximum rating of 30 Amps.
EN — These products are heavy. The ange mounting ears are designed to hold the PDU securely
against the rack mounting rails, but are NOT designed to support the weight of the product
vertically. The end user is responsible for ensuring the product’s weight is properly supported by the
rack’s infrastructure (which may require adding support rails).
FR — Ces produits sont lourds. Les oreilles de montage à bride sont conçues pour maintenir
solidement l’unité de distribution de l’alimentation contre les rails de montage, mais NE sont
pas conçues pour soutenir le poids du produit verticalement. Il incombe à l’utilisateur nal de
s’assurer que le poids du produit est correctement supporté par l’infrastructure du bâti (ce qui peut
nécessiter l’ajout de rails de support).

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Optima 532 Series
3 Operation
OFFON OFFON OFFON OFFON OFFON OFFON
PRESS
RESET
Main Breaker CB 1 CB 2 CB 3 CB 4
Optima Local/On
Off
Remote
Outlet Control Bus
Enable
Disable
Return
A
B
C
J 8 J 9
J 10 J 11
Enable
Disable
Return
Delay
Disable
Return
Rear Panel • Left Side
3.1 Startup
Switch all breakers on the PDU control panel to the off position. Switch the Outlet Control Bus mode switch to the up
position labeled Local/On. (This forces the PDU into local mode, ignoring any existing remote panel for now.)
Insert the PDU’s inlet connector into the facility mains power source. If there is a facility power disconnect, switch that to
the On position. At this point, the PDU is energized, though all indicator lamps will be off.
Switch the PDU’s Main Breaker to the On position, and the ΦA, ΦB, ΦC indicators will be lit. All branch circuits are ready
for use.
If there is not an EPO panel connected to the PDU, leave the switch in the up Local/On position. If there is remote EPO
panel connected to the PDU, such as Marway’s Commander UCP 5000, ip the Outlet Control Bus switch to the down
Remote position.
3.2 Breaker Controls
The PDU has three distinct groups of controls: the main breaker, the branch breakers, and the remote EPO system.
3.2.1 Main Breaker
The Main Breaker prevents or enables power to all PDU outlets. When Main Breaker is switched on, the indicators
labeled ΦA, ΦB, ΦC will be lit.
This breaker includes a breaker guard with a lockout feature. Attaching a small padlock (not included) through the guard
hole will prevent the breaker from being switched on.
3.2.2 Branch Breakers
All Optima 532 models include four branch breakers. All are rated at 16 A
continuous load (20 A maximum). CB1 is for J1 (both outlets of the duplex).
CB2 is for J2, et cetera.
Branch breakers do not have indicators. However, note that as each breaker is
switched on, the top of the switch button reveals as a white, helping to identify
that it is on.
Note how the tops of the branch breakers are
white when switched on.

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Optima 532 Series
If the twist lock outlets J5, J6, and J7 are the L5, 20 Amp types, they will be wired to the circuit breakers for J2, J3, and J4
respectively. If the twist locks are 30 A rated, they are wired directly to the main breaker.
J 2J 3
J 4
J 10 J 11
Enable
Disable
Return
Delay
Disable
Return
J 7 J 6 J 5 J 1
Choice of
twist-lock
Choice of
twist-lock
Choice of
twist-lock
J 2J 3
J 4
J 10 J 11
Enable
Disable
Return
Delay
Disable
Return
J 7 J 6 J 5 J 1
Choice of
twist-lock
Choice of
twist-lock
Choice of
twist-lock
CB1CB4
Main
whether on
front or rear
always
whole
duplex
CB3 CB2
20-Amp Twist Locks
30-Amp Twist Locks
Main Main
3.2.3 Controls Breaker
There is a small pop-out breaker protecting the control system components. This isn’t used during normal operation. If it
were to pop out, try pressing it back in. If it fails to stay in, there may be failure in one of the controls which is shorted, or
is drawing excessive current. This would likely indicate the need for an RMA repair. Contact Marway support.
3.3 EPO Controls
All Optima 532 PDUs include the controls to interface to Marway’s Commander UCP 5000 Remote On/Off/EPO panels
and similar compatible panels. This panel is not required to operate the PDU.
3.3.1 Remote Mode Switch
The Outlet Control Bus has a three-mode switch which is used as a local override to the overall remote command
system. The three modes are labeled Local/On, Off, and Remote.
When there is not a remote control panel connected:
• Local/On (up position) is the normal operating mode.
• Off (center position) causes an internal contactor to disengage power from all branches except for the CB1/J1 branch
which continues to be powered. Therefore, Off disconnects power to almost all outlets even if the breakers are
switched on.
• Remote (up position) will behave like Off.
When there is a remote panel connected to the PDU:
• Remote (down position) is the normal operating mode. Outlets are subject to the branch breakers, the main breaker,
and the upstream remote panel On/Off/EPO controls.

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Optima 532 Series
• Local/On (up position) causes the PDU to ignore the On/Off/EPO commands of the remote panel. The local breakers
will then be in sole control of the outlets.
• Off (center position) causes an internal contactor to disengage power from all branches except for the CB1/J1 branch
which continues to be powered. The PDU will ignore the On/Off/EPO commands of the remote panel. Therefore, Off
disconnects power to almost all outlets even if the breakers are switched on.
If there will not be a remote On/Off/EPO panel connected to the PDU, switch the Outlet Control
Bus mode switch to the up position labeled Local/On. This is the normal operating position for any
unit with no remote panel. (The other positions will prevent power from getting to the outlets.)
Whether there is a remote control panel connected or not, toggling the Outlet Control Bus mode
switch to the center position labeled Off will disconnect power to almost all outlets even if the
breakers are switched on. The Off mode causes an internal contactor to disengage power from all
branches except for the CB1/J1 branch which continues to be powered.
3.3.2 Remote Bus Connectors
There are a total of four connectors, but note that there are two types of connectors. Based on the label of the top pin,
we call the two types the standard “enable” type, and the alternative “delay” type. There are three of the standard type (2
front, 1 back), and one of the delay type (on the back).
Multiple PDUs can be wired in a daisy-chain fashion to be operated by a single remote panel.
The standard enable connectors are J9, J10, J11. These are all wired in parallel.
The delay connector is J12. When used, the On signal from the remote panel is delayed by about 2 seconds.
J 2
J 3
J 4
J 10 J 11
Enable
Disable
Return
Delay
Disable
Return
J 7 J 6 J 5 J 1
J 2
J 3
J 4
J 10 J 11
Enable
Disable
Return
Delay
Disable
Return
J 7 J 6 J 5 J 1
J 2
J 3
J 4
J 10 J 11
Enable
Disable
Return
Delay
Disable
Return
Input
J 7 J 6 J 5 J 2
J 3
J 4
J 10 J 11
Enable
Disable
Return
Delay
Disable
Return
Input
J 7 J 6 J 5
Enable
Disable
Return
Enable
Return
Outlet Control Bus
J1 J2 J4 J5J3
Remote EPO Input Outlet Control Bus
Aux 2
Marway Commander UCP 5000 Remote EPO
Using the “Enable” connectors, each PDU receives the On signal at the same time. Using the “Delay” connector to connect to the second PDU, the second PDU will receive
the On signal approximately 2 seconds after the first PDU.
Enable
Disable
Return
Enable
Return
Outlet Control Bus
J1 J2 J4 J5J3
Remote EPO Input Outlet Control Bus
Aux 2
3.3.2.1 Remote Bus Connector Wiring
The 3-pin connectors use two low-voltage signals as follows:
• Shorting the Enable pin to the Return pin with a dry contact will trigger the remote bus Enable signal.
• Shorting the Disable pin to the Return pin with a dry contact will trigger the remote bus Disable signal.
• Note that the Disable signal has priority, so that if both signals are triggered at the same time, the net result will be
Disable.
For additional information about Marway’s Commander UCP remote panel, visit the web site at
http://www.marway.com/commander-epo-panels