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INSTRUCTION 

MANUAL 

P/N 30-8300 

8 CH POWER DISTRIBUTION UNIT 

STOP! - READ THIS BEFORE INSTALL OR USE! 

WARNING: 

IT IS THE RESPONSIBILITY OF THE INSTALLER TO ULTIMATELY CONFIRM THE 

CONFIGURATION USED FOR ANY PARTICULAR INSTALLATION IS SAFE FOR ITS 

INTENDED USE. AEM HOLDS NO RESPONSIBILITY FOR ANY DAMAGE THAT 

RESULTS FROM THE MISUSEOF THIS PRODUCT. 

Working on Electric Vehicle tractive systems with high voltage battery packs requires special experience 

and training.  Doing this safely is entirely the responsibility of the installer. AEM has done everything it can 

to ensure the VCU has appropriate fault detection and failsafe logic but that does not mean that your 

installation will be safe or that your VCU installation will not interfere with other systems on your vehicle and 

create a hazardous situation. It is the responsibility of the installer to understand the implications of each 

stage of tractive system installation and testing, and to know what might be unique about your application 

that presents an unintended hazard or potential safety issue –

 

and to solve it. 

Following is a brief list of recommended practices.  This is not a comprehensive list; as noted below, if you 

are not well-versed in the appropriate installation and testing procedures, you should refer the installation 

and calibration to a reputable installation facility or contact AEM EV for a referral in your area. 

 

When access is required near the battery pack, the cell segments must be separated by using an 

appropriate maintenance disconnect plug. 

 

When working on the battery pack or tractive system, safety glasses with side shields and 

appropriate insulated tools must be used. 

 

Always wear Class 0 gloves rated at 1000V with leather protectors. 

 

Only use a CAT III rated digital multi-meter (DMM) and test leads. 

 

When working on the battery pack or tractive system, use the one hand rule: work with one hand 

keeping the other behind your back whenever possible. 

 

During initial system power up and testing, the vehicle must be raised off the ground and supported 

appropriately.  Wheels/tires should be removed. 

 

During the VCU firmware upgrade process, battery cell segments must be separated by using an 

appropriate maintenance disconnect plug. 

 

Do not make calibration changes while the inverter PWM is enabled. 

USE THIS PDU WITH EXTREME CAUTION. MISUSE AND/OR IMPROPER INSTALLATION CAN CAUSE 

SIGNIFICANT DAMAGE TO YOUR VEHICLE AND PROPERTY BELONGING TO YOU OR OTHERS, AS 

WELL AS PERSONAL INJURY OR DEATH. IF YOU ARE NOT WELL VERSED IN THE INSTALLATION 

OF TRACTIVE SYSTEMS OR CONFIGURING THE CALIBRATIONS IN THE AEM EV VCU THAT ARE 

NECESSARY TO CONTROL THE VEHICLE, YOU SHOULD REFER THE INSTALLATION AND VCU 

CALIBRATION TO A REPUTABLE INSTALLATION FACILITY, OR CONTACT AEM EV FOR A 

REFERRAL IN YOUR AREA. IT IS THE RESPONSIBILITY OF THE INSTALLER TO ULTIMATELY 

CONFIRM THAT THE INSTALLATION AND CALIBRATIONS ARE SAFE FOR ITS INTENDED USE. 

AEM Performance Electronics, 2205 126th Street Unit A, Hawthorne, CA 90250 - Phone: (310) 484-2322 

http://www.aemelectronics.com 

Summary of Contents for 30-8300

Page 1: ...red near the battery pack the cell segments must be separated by using an appropriate maintenance disconnect plug When working on the battery pack or tractive system safety glasses with side shields and appropriate insulated tools must be used Always wear Class 0 gloves rated at 1000V with leather protectors Only use a CAT III rated digital multi meter DMM and test leads When working on the batter...

Page 2: ... identified by grounding different combinations of configuration pins on the PDU connector and 8 unique combinations are available Since the pin configurations are part of the harness no software ID configuration is needed to be stored within the PDU meaning units are field interchangeable Specifications Parameter Value 8 Outputs Switched 12V 4 Channels continuous 20A max per channel 4 Channels co...

Page 3: ...mp Max 2 3 CAN Low Unterminated 4 CAN High Unterminated 5 Ground 6 High Side Driver 5 20 Amp Max 7 8 High Side Driver 2 10 Amp Max 9 10 Config 3 Ground for Unit ID s 5 6 7 8 11 Ground 12 High Side Driver 6 10 Amp Max 13 14 High Side Driver 3 10 Amp Max 15 16 Config 2 Ground for Unit ID s 3 4 7 8 17 Not Used 18 High Side Driver 7 10 Amp Max 19 20 High Side Driver 4 20 Amp Max 21 22 Not Used 23 Not ...

Page 4: ...nsigned 10 bit number with a scale of 0 1A and an offset of 0 0 102 3A Note that the individual channels are assumed to be used to drive high current loads in some cases up to 20A per channel The current measurement is designed for use above 2 amps and currents below this are unreliable PDMErrorStatus0 is a 3 bit unsigned number with a scale of 1 and an offset of 0 0 to 7 The possible values for t...

Page 5: ...tput is off A non 0 value sets the current limit for the output If a value higher than the allowed maximum is selected then the current limit is set to the max allowed for that channel If the PDU 8 unit does not receive the command message within 500mS it will switch off all the outputs and flash the Status LED PDMMaxCurrent0 is an unsigned 8 bit number with a scale of 0 4A and an offset of 0 0 10...

Page 6: ...The requested duty cycle can vary between 0 100 Any outputs that you do not want to have a PWM should have a value of 255 If this message does not update within 500mS then the PDU 8 will treat all channels with simple ON OFF control PDMDutyOut0 is an unsigned 8 bit number with a scale of 0 392157 and an offset of 0 0 100 PDU 8 Rx Message 2 0x000A0630 for unit 1 timeout if not updated within 500mS ...

Page 7: ...cted to GND Pin11 The following table lists the configuration pin settings and the resulting 8 possible unit IDs Unit ID Config 1 Pin 24 Config 2 Pin 16 Config 3 Pin 10 TX Msg 1 Address TX Msg 2 Address RX Msg 1 Address RX Msg 2 Address 1 O C O C O C 0x000A0610 0x000A0611 0x000A0620 0X000A0630 2 Gnd O C O C 0x000A0612 0x000A0613 0x000A0621 0X000A0631 3 O C Gnd O C 0x000A0614 0x000A0615 0x000A0622 ...

Page 8: ...se with either an M4 or a 8 mounting fastener If the total power provided by any one PDU 8 is expected to exceed 50A continuous then the unit should be mounted with the bottom flush against a surface which can act as a heat dissipation path Dimensions 6 9 2020 Document Number 10 8300 EV 2020 AEM Performance Electronics ...

Page 9: ...said 12 month warranty period Improper use or installation accident abuse unauthorized repairs or alterations performed by the user on any AEM Electronics products voids this warranty In no event shall this warranty exceed the original purchase price of the AEM Electronics part nor shall AEM Electronics be responsible for special incidental or consequential damages or cost incurred due to the fail...

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