Power Assembly Plan

POW Module

This page provides step by step assembly for the POW subsystem.

Required GSE:

• Tools: Required tools such as cleaning equipment, chemical, jigs, hand tools, consumables, etc.

• Hardware: Iris part IDs that are needed for completion.

• PPE: clean room smock, face masks, gloves, ESD equipment, safety goggles, fume hood,

Verification Activities: Provide a list of all verification activities that will be used to confirm the module was properly assembled.

Instructions:

1. Step 1: Battery Saddle Integration

   1. 1. 1. Step 1.1: Assemble the heaters, thermistors and thermostat on the saddle following the battery saddle assembly procedure [Battery Saddle Installation Procedure - Google Docs ]

         2. Step 1. ?: Mix the thermal epoxy following [link to epoxy mixing procedure]

         3. Step 1. ?: Apply thermal epoxy on the 2 bottom battery holders

         4. Step 1. ?: Place 2 of the cells on the bottom slots of the saddle. Take extra care to align the cells with the center of the saddle holders

         5. Step 1. ?: Wait for the epoxy to cure (at least 24 hours)

         6. Step 1. ?: Mix the thermal epoxy following [link to epoxy mixing procedure]

         7. Step 1. ?: Apply thermal epoxy on the 4 top battery holders

         8. Step 1. ?: Place 4 of the cells on the top slots of the saddle. Take extra care to align the cells with the center of the saddle holders

         9. Step 1. ?: Wait for the epoxy to cure (at least 24 hours)

         10. Step 1. ?: Connect the battery harnessing wires by soldering wires to the solder tabs according to [Link to battery harness]

2. Step 2: Solar Panels Integration

   1. Step 2.1: Assemble the flight solar panels following the

   2. Step 2.2: Integrate the solar panel thermistors

   3. Step 2.3: Mount the solar panels on the structure

   4. Step 3: Lower Shell Integration

      1. Step 3.?: Assemble the umbilical connector

      2. Assemble the foot switch brackets.

      3. Assemble the saddle inside the shell and bolt it down to the lower shell

      4. install the EPS control board by bolting it down to the holes provided on the

      5. connect the harnessing for EPS control board

      6. install the spacers on the EPS control board

      7. Install the EPS board

      8. Connect EPS board harnessing. that is battery connections, solar panel inputs, load switch outputs and CAN controller which connects to the inter-module connector

   5. Step 4: Upper Shell Integration

      1. connect wires to the inter-module connectors

      2. mount the inter-module connector to the