V 1 3 0 PRIAM NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 5.25"/FH Cylinders 987| | | Capacity form/unform 26/ 31 MB Heads 3| | | Seek time / track 30.0/ 5.0 ms Sector/track 17| | | Controller MFM / ST506 Precompensation 65535 Cache/Buffer KB Landing Zone Data transfer rate 0.625 MB/S int Bytes/Sector 512 0.625 MB/S ext Recording method MFM operating | non-operating -------------+-------------- Supply voltage 5/12 V Temperature *C 4 50 | -40 60 Power: sleep W Humidity % 8 80 | 5 95 standby W Altitude km -0.305 3.000| -0.305 12.000 idle W Shock g 2 | 20 seek W Rotation RPM 3600 read/write 27.0 W Acoustic dBA 50 spin-up W ECC Bit MTBF h 20000 Warranty Month Lift/Lock/Park YES Certificates ********************************************************************** L A Y O U T ********************************************************************** PRIAM V130/V150/V170/V185 OEM SERVICE MANUAL 308100 REV LTR A +--------------------------------------------+ | J4--+ +-----------+/Outermost | Second PCB +--+ | | board | XXX Power | | XXX | | | |XX | | |XX J1 | | |XX | | +-J6--+ |XX | | +-----+ |XX | | | | | +-+ |XX | | J12 | |XX | | | | |XX J2 | | +-+ |XX | +-----------+ +--------------------------------------------+ ********************************************************************** J U M P E R S ********************************************************************** PRIAM V130/V150/V170/V185 OEM SERVICE MANUAL 308100 REV LTR A Jumper setting ============== x = Jumpers set at factory J1/P1 Connector Pin Assignment ------------------------------- +--------------------------------------------------------+ |Ground Return Signal Signal Name Terminated? | |Pin Number Pin Number | +--------------------------------------------------------+ | 1 2 -Not Used Yes | +--------------------------------------------------------+ | 3 4 -Head Select 2 Yes | +--------------------------------------------------------+ | 5 6 -Write Gate Yes | +--------------------------------------------------------+ | 7 8 -Seek Complete No | +--------------------------------------------------------+ | 9 10 -Track 0 No | +--------------------------------------------------------+ | 11 12 -Write Fault No | +--------------------------------------------------------+ | 13 14 -Head Select 2* Yes | +--------------------------------------------------------+ | 15 16 Reserved (J2 Pin 7) No | +--------------------------------------------------------+ | 17 18 -Head Select 2 Yes | +--------------------------------------------------------+ | 19 20 -Index No | +--------------------------------------------------------+ | 21 22 -Ready No | +--------------------------------------------------------+ | 23 24 -Step Yes | +--------------------------------------------------------+ | 25 26 -Drive Select 1 Yes | +--------------------------------------------------------+ | 27 28 -Drive Select 2 Yes | +--------------------------------------------------------+ | 29 30 -Drive Select 3 Yes | +--------------------------------------------------------+ | 31 32 -Drive Select 4 Yes | +--------------------------------------------------------+ | 33 34 -Direction In Yes | +--------------------------------------------------------+ Note: The Terminations on J1 signals can be removed by removing the Resistor Pack from its socket on the Data (outside) board. All odd pins are ground. A key slot is between pins 4 and 6. J2/P2 Connector Pin Assignment ------------------------------- +--------------------------------------------------------+ |Ground Return Signal Signal Name | |Pin Number Pin Number | +--------------------------------------------------------+ | 2 1 -Drive Selected | +--------------------------------------------------------+ | 4 3 Reserved | +--------------------------------------------------------+ | 6 5 Spare | +--------------------------------------------------------+ | 8 7 Reserved (to J1 pin 16) | +--------------------------------------------------------+ | 9 Spare | +--------------------------------------------------------+ | 10 Spare | +--------------------------------------------------------+ | 12 11 GND | +--------------------------------------------------------+ | 13 +MFM Write Data * | +--------------------------------------------------------+ | 14 -MFM Write Data * | +--------------------------------------------------------+ | 16 15 GND | +--------------------------------------------------------+ | 17 +MFM Read Data | +--------------------------------------------------------+ | 18 -MFM Read Data | +--------------------------------------------------------+ | 20 19 GND | +--------------------------------------------------------+ * Permanently Terminated A key slot is provided between pins 4 and 6. J3/P3 DC Connector Pin Assignments ----------------------------------- +---------+ | 4 3 2 1 | J3 Connector Inner PCB Solder Side +---------+ Voltage Pin 1 +12 Volts DC Pin 2 +12 Volts Return Pin 3 + 5 Volts Return Pin 4 + 5 Volts DC J6 Drive Select ---------------- Two options are implemented via J6 on the outer printed circuit board near connector J1. These options are selected by means of a shunt block or dipswitch on early models, or by pins with a moveable jumper on current models. +------------+----------------------+--+----------------+ |Drive Select| Cut Shunts |OR| Shorting Plugs| +------------+----------------------+--+----------------+ | DS1 | 10-7, 11-6, and 12-5 |OR| Short 9-8 | +------------+----------------------+--+----------------+ | DS2 | 9-8, 11-6, and 12-5 |OR| Short 10-7 | +------------+----------------------+--+----------------+ | DS3 | 9-8, 10-7, and 12-5 |OR| Short 11-6 | +------------+----------------------+--+----------------+ | DS4 | 9-8, 10-7, and 11-6 |OR| Short 12-5 | +------------+----------------------+--+----------------+ DRIVE SELECT, when low level, connects the drive interface to the control lines. Cuting the appropriate shunts at IC position will determine which select line on the interface will activate that drive. The table indicates which DRIVE SELECT shunts must be cut. A status line is provided at the J2/P2 connector to inform the host system of the selection status of the drive. The DRIVE SELECTED line is driven by a TTL open collector driver. This signal will go active when the proper DRIVE SELECT line is active. The DRIVE SELECT X line at J1/P1 is activated by the host system. Drive Select jumpers on the shunt block are all shorted when shipped. Dipswitches and pins will have only Drive Select 1 selected. Outputs are not active until the drive is selected. Pin groups 1-16, 5-12, 6-11, 7-10, and 8-9 control the Drive Select function. The function desired is left shorted; the others must be opened. J6 Radial ----------- Plug x Radial 1-16 OPEN J6 Auto Access (for factory use) --------------------------------- Plug x Auto Access 2-15 OPEN CLOSED The drive will perform a repeating series of predetermined seek oper- ations with no signals required on the interface upon power up. This is normally used in the Priam factory to provide dynamic exercise of the during manufacturing burn-in. Auto Access is also referred to as "Self Test" The following additional options are implemented by pads (J12) on the Data PCB near interface connector J2. Power Sequencing Non-Multiplexed Index Write Protect Radial Seek Complete Grounding J12 Power Sequencing (PS) -------------------------- A trace pad (J12-1) is aviable which, when shorted to DC ground, will inhibit starting of the DC spin motor, even if DC voltages are applied. When not connected to ground, the drive will sequence up normally. This can be used in multiple drive installations to mini- mize in-rush motor start currents on the +12V line. The function can be implemented by connection of an external wire, or bridging the trace to one of the unused pins on the interface connectors. Ground connections are available at J12. J12 Non-Multiplexed Index (NMI) -------------------------------- This trace pad (J12-5) can be connected on the J2 interface to provide an Index signal even when the drive is not selected. This signal is not driven by a line driver and may not meet cable length specifications. J12 Write Protect (WP) ----------------------- A pad (J12-13) is available which can be used to inhibit write opera- tions on the drive when shorted to DC ground. If desired, an external switch can be connected to the pad, providing a manual write protect function. Ground connections are available at J12. J12 Radial Seek Complete (SC) ------------------------------ This trace pad (J12-8) can be connected to a spare pin on the J2 interface to provide a seek complete signal even if the drive is not selected. This is useful in some applications to enhance multiple seek overlap functions. This signal is not driven by a line driver and may not meet cable length specifications. ********************************************************************** I N S T A L L ********************************************************************** PRIAM V130/V150/V170/V185 OEM SERVICE MANUAL 308100 REV LTR A Notes on installation ===================== Installation direction ---------------------- horizontally vertically +-----------------+ +--+ +--+ | | | +-----+ +-----+ | | | | | | | | | +-+-----------------+-+ | | | | | | +---------------------+ | | | | | | | | | | | | x x | | | | | | +------x------x-------+ | +-----+ +-----+ | +-+------x--x-------+-+ +--+ +--+ | xx | | x x | +---x--------x----+ x x Recommended orientation is either vertical on either side or horizontal with PCB down. In the final mounting configuration, ensure that operation of the four shock mounts is not inhibited. Shipping Damage Inspection -------------------------- Priam disk drives are packaged to withstand normal handling in reusable shipping containers. It is the customer's responsibility to notify the carrier if shipping damage should occur to a drive. Note: When handling the drive while still in the shipping container, ensure that the container remains in the upright position indicated by the attached labels. Do not place drives in vertical positions closer than 2 to 3 inches apart to avoid hitting and breaking components. Shock and Vibration Precautions ------------------------------- The drives must be handled in such a manner as not to exceed the Non- Operational Shock and Vibration limits. Mounting Holes -------------- Eight mounting holes, four on the bottom and two on each side, are provided for mounting the drive in an enclosure. The size and location of these holes, are identical to the industry standard mini- floppy drive. Drive Connection ---------------- Typical Connection 4-Drive System HOST +-----------+ +-----------------+ | +---o----------------------------+J1 Drive #1 | | | | +----DATA---------------+J2 | | | | | +---------+J3 J4 | | | | | | +-----+-----------+ | | | | | +-----------+ | | | | | | +-----------------+ |Controller | o----+-------------+---+-----+J1 Drive #2 | | | | | +--DATA-----+---+-----+J2 | | | | | | o---+-----+J3 J4 | | | | | | | | +-----+-----------+ | | | | | | o-----------+ | | | | | | | +-----------------+ +-----------+ o----+-+-----------+---+-----+J1 Drive #3 | +-----------+ | | | +---------+---+-----+J2 | | +---+----+ | | o---+-----+J3 J4 | | +---+------+ | | | +-----+-----------+ | | | | | o-----------+ |Data +---+--DATA--+ | | +-----------------+ |Separator | +------------------+---+-----+J1 Drive #4 | | +------DATA------------+---+-----+J2 | | | o---+-----+J3 J4 | +-----------+ | | +-----+-----------+ | o-----------+ DC Voltages---------+ | (Radial) | Frame Ground------------+ Note: Termination resistor pack to be installed only in the last physical drive on line. J1/P1 Connector - Control Signals --------------------------------- Connection of J1 is through a 34-pin edge connector. The pins are numbered 1 through 34 with the even pins located on the component side of the PCB. Pin 2 is labeled. The recommended mating connector for P1 is AMP ribbon connector P/N 88373-3 or Molex 15-35-1341. All odd pins are ground. J2/P2 Connector - Data Signals ------------------------------ Connection to J2 is through a 20-pin edge connector. The pins are numbered 1 through 20 with the even pins located on the component side of the PCB. The recommended mating connector for P2 is AMP ribbon connector P/N 88373-6, or Molex P/N 15-35-1201. Pin 2 is labeled. J3/P3 Connector - Power ----------------------- DC power connector (J3) is a 4-pin AMP Mate-N-Lok connector P/N 350211-1 mounted on the solder side of the PCB. The recommended mating connector (P3) is AMP P/N 1-480424-0 utilizing AMP pins P/N 350078-4 (Strip) or P/N 61173-4 (Loose piece). J4/P4 Frame Ground Connector ----------------------------- Faston AMP P/N 691761-2 Recommended mating connector AMP 62187-1 If used, the hole in J4 will accomodate a wire of size 18AWG max. Data Transfer Lines ------------------- All lines associated with the transfer of data between the drive and the host system are differential in nature and may not be multi- plexed. These lines are provided at the J2/P2 connectors on all drives. Two pairs of balanced signals are used for the transfer of data: WRITE DATA and READ DATA. Flat ribbon or twisted pair Maximum 20 feet Note: Any EIA RS 422 Driver/Receiver pair will interface. Faceplate --------- The faceplate is for cosmetic purposes only, serving no structural requirement, and can be easily removed. Remove the four screw adjacent to the side frames and disconnect the light emitting diode. The recommended mating plug for J7 is AMP P/N 640442-2. Grounding --------- As shipped, the printed circuit board DC logic ground is connected to the drive frame through the Head/Disk Assembly by a shorting plug installed in location J12, connecting pin 15 with pin 16. In some installations, disconnecting the PCB logic ground from the side frame may give better results, depending on overall system grounding and noise level. ********************************************************************** F E A T U R E S ********************************************************************** PRIAM V130/V150/V170/V185 OEM SERVICE MANUAL 308100 REV LTR A General Operation ----------------- The V100 Series drives consist of read/write, head positioning and control electronics, rotary voice coil actuator, media, air filtration system, and disk spin motor. These components perform the following functions: 1. Interpret and generate control signals. 2. Position and maintain the heads over the desired track. 3. Maintain precice disk rotation speed. 4. Read and write data. 5. Provide a contamination-free environment. Read/Write, Servo and Control Electronics ----------------------------------------- Electronics are packaged on two printed circuit boards. The outer- most board, to which control and data signals are connected, includes: 1. R/W circuits 2. Interface drivers/receivers 3. Microprocessor and associated logic 4. Write fault detection 5. Drive selection 6. Optional interface functions 7. Index circuit The second PCB, mounted under the top board, accepts the required DC voltages and performs the following functions: 1. Disk spin motor control 2. Head actuator positioning 3. Tack 0 detection 4. -10 voltage regulator 5. Power monitoring Disk Defects ------------ Disk defects are imperfections in the media surface. No unit will be shipped if surface analysis identifies more than 30, 50, 70, or 85 total defective tracks/drive for V130, V150, V170, and V185 respectively. Note that even at these maximum values, only 1% of the drive capacity is unavailable. Additionally, no defects will be present on cylinder 0, heads 0, 1, and 2. Testing for defects invilves an analysis of the total media surface under marginalized test conditions. Defect information is included on the test data sheet shipped with the drive, and on the error map label affixed to the drive. Format is cylinder number, head number and bytes from index. Location accuracy is 10 bytes. In a single format operation, it is probable that errors will not be detected on all on the locations defined. However, all should be considered defects and flagged by the using system to ensure long term data reliability. The use of an error correction code (ECC) rather than cyclic re- dundancy check (CRC) is recommended for best data integrity. Recording Method ---------------- All models support the use of 2.7 RLL encoding in addition to MFM. When used with a controller utilizing RLL encoding, drive capacity may be expected to increase up to 50% over the values stated above. Note that error rate criteria may vary depending upon the type of RLL encoding scheme used. Seek Times ---------- +----------------------------------+--------+ |Physical track to track max. | 5 ms | +----------------------------------+--------+ | Average msec. typ. | 30 | | Average msec. max. | 60 | +----------------------------------+--------+ |Latency msec. avg. | 8.33 | +----------------------------------+--------+ Including settling and transmission of step pulses Drive Mechanism --------------- A brushless 3 phase DC drive motor rotates the spindle disk assembly at 3600 rpm. The spindle is driven directly with no belt or pulley beeing used. A crystal controlled phase lock loop maintains precise speed regulation. The motor and spindle are dynamically balanced to ensure a low vibration level. Dynamic braking is used to quickly stop the motor when power is removed. The base plate assembly is shock mounted to the side mounting frames to minimize transmission of vibration through the chassis or frame. Index signal is derived from a transducer inside the drive motor. Air Filtration System --------------------- The disks, read/write heads and actuator are fully enclosed in a module using an intergral recirculation air system and absolute filter to maintain a clean environment. A separate filter permits ambient pressure equalization without entry of contaminants. Positioning Mechanism --------------------- The read/write heads and servo head are mounted onto a rotary actuator supported by precision ball bearings. A bobbin-type voice coil mounted between two permanent magnets provides the driving force required to rotate the actuator for head positioning. Chrash stops are provided to protect the head assemblies should a malfunction cause the actuator to lose control. When the drive is powered down, the actuator is driven to a head landing zone on the inner diameter of the disk. Simultaneously, the actuator is automatically locked over the landing zone to prevent possible head/media damage when the drive is subjected to transport shock or movement around the office. Automatic Head Actuator Lock ---------------------------- This automatic lock requires no action by the user. When the drive is powered down, the actuator is automatically locked to prevent possible head/media damage when shipping and handling the drive. Drive Selection --------------- Drive selection occurs when one of the DRIVE SELECT lines is activated. Only the selected drive will respond to the input signals, and only that drive's output signals are then gated to the controller interface. Recording Media --------------- The recording media consists of a carbon overcoated thin film metal magnetic coating on either side of a 130-millimeter (5.12 inch) diameter aluminium substrate. In the V100 Series, there are several such disks in the sealed head-disk assembly, with up to seven surfaces used for data and one surface used for prerecorded servo in- formation. Input Buffers ------------- The ST412/506 Interface control signals from the controller are input to the microprocessor and the PLA via schmitt trigger input buffers. Output Drivers -------------- The ST415/506 control signals from disk drive are output via open- collector drivers. Each driver is capable of sinking a maximum of 48 milliamperes at its low level (true state) with a maximum of 0.4 measured at the driver. When the driver is in its high level (false state), the driver transistor is off. The output control signals are gated by a Drive Select line developed from the Drive Select input DS0-L. Control Input Lines ------------------- The control input signals are of two types: those to be multiplexed in a multiple drive system, and those intended to do the multiplexing. The control input signals to be multiplexed are WRITE GATE, HEAD SELECT, STEP and DIRECTION IN. The signal to do multi- plexing is DRIVE SELECT 1, DRIVE SELECT 2, DRIVE SELECT 3, or DRIVE SELECT 4. The input lines have the following electrical specifications: TRUE 0.0 VDC to 0.4 VDC @ 1 = 48mA (max.), Active, Logic 1 FALSE 2.5 VDC to 5.25 VDC @ 1 = +250 A (OPEN COLLECTOR), Inactive, Logic 0 Write Gate ---------- The active state of this signal, or low lwvel, enables write data to be written on the disk. The inactive state of this signal, or high level, enables data to be transferred from the drive. Control Output Lines -------------------- The output control signals are driven with an open collector output stage capable of sinking a maximum of 48mA at low level or true state with maximum voltages of 0.4V measured at the driver. When the line driver is in the high level or false state, the driver transistor is off and the collector leakage current is a maximum of 250 A. All J1 output lines are enabled by their respective DRIVE SELECT line. Reliability Specifications -------------------------- Mean-time-between-failures (MTBF) More than 20,000 power on hours Mean-time-to-repair (MTTR) less than 30 minutes Component life 5 years Shipping Requirement -------------------- The actuator is automatically locked whenever the drive is powered down. When shipped as a single unit, the original shipping container should be used. The container is designed to ensure no drive damage will occur if the container is dropped from a height of 42" or less.