INPUT AC Input Line Requirements Please see the datasheet for the specification of input line requirements (including Input voltage range, input frequency, input harmonics, input current and leakage current). The power supply will automatically recover from AC power loss and start-up with maximum loading at 90VAC. Repetitive ON/OFF cycling of the AC input voltage will not damage the power supply or cause the input fuse to blow.
HIPOT TESTING Isolation testing During the manufacturing process, all QM units are subjected to safety Hipot testing. If conducting these tests on the end equipment, it is important to ensure that the high voltage is ramped up and down over a period of greater than 1 second to ensure that no damage occurs to the unit under test.
AC Fail An isolated opto-coupler transistor output. Pin 7 is the collector and pin 8 the emitter. This signal provides a warning that the AC is not present (or out of range) and the outputs will be losing regulation after 5ms. The transistor is “on”...
Control line in* *Refer to the PMBus section for further information Molex mating connectors and pins (Contact Molex for other pin alternatives) Description Molex part TDK-Lambda number part number 10 way Milli-Grid with locking ramp 51110-1060 12934 12 way Milli-Grid with locking ramp...
DC OUTPUTS DH Modules The output voltages can be adjusted across the range shown in the datasheet by using the potentiometer situated to the right of the signal connector. Turning the potentiometer clockwise will increase both the output voltages. Channel 2 tracks channel 1. The output voltage for V2 = V2max* x V1(actual set point) / V1max* * Maximum adjustment voltage as shown in the datasheet V1 max...
Module inhibit cathode Do not connect Molex mating connectors and pins (Contact Molex for other pin alternatives) Description Molex part TDK-Lambda number part number 10 way Milli-Grid with locking ramp 51110-1060 12934 Crimp terminal, gold flash, female, supplied on a reel...
DM Modules Channel 1 and 2 output voltages can be adjusted across the range shown in the datasheet by using the potentiometer situated to the right of the signal connector. Channel 1 potentiometer is the upper one, closest to the Channel 1 output terminals.
CH2 inhibit is an isolated opto-coupler diode input. Passing a minimum of 1mA through the diode will inhibit (turn off) only Channel 2 of the module. Signal ratings Ch1 good signal Signal type (internal to PSU) Uncommitted optocoupler transistor Vce max Ic max Ch2 good signal Signal type (internal to PSU)
CH1 Sense + CH1 Sense - Molex mating connectors and pins (Contact Molex for other pin alternatives) Description Molex part TDK-Lambda number part number 12 way Milli-Grid with locking ramp 51110-1260 200401 Crimp terminal, gold flash, female, supplied on a reel...
Remote Sense - No connection Molex mating connectors and pins (Contact Molex for other pin alternatives) Description Molex part TDK-Lambda number part number 10 way Milli-Grid with locking ramp 51110-1060 12934 Crimp terminal, gold flash, female, supplied on a reel...
SB Modules The output voltage can be adjusted across the range shown in the datasheet by using the potentiometer situated to the right of the signal connector. Turning the potentiometer clockwise increases the output voltage. The remote sense provides compensation for a maximum total load cable drop of 0.5V for the output.
Remote Sense - No connection Molex mating connectors and pins (Contact Molex for other pin alternatives) Description Molex part TDK-Lambda number part number 10 way Milli-Grid with locking ramp 51110-1060 12934 Crimp terminal, gold flash, female, supplied on a reel...
SC Modules The output voltage can be adjusted across the range shown in the datasheet by using the potentiometer situated to the right of the signal connector. Turning the potentiometer clockwise increases the output voltage. The remote sense provides compensation for a maximum total load cable drop of 0.5V for the output.
Remote Sense - No connection Molex mating connectors and pins (Contact Molex for other pin alternatives) Description Molex part TDK-Lambda number part number 10 way Milli-Grid with locking ramp 51110-1060 12934 Crimp terminal, gold flash, female, supplied on a reel...
YB Modules The YB module consists of a DH module preconfigured with outputs connected in series. The output voltage can be adjusted across the range shown in the datasheet by using the potentiometer situated to the right of the signal connector. Turning the potentiometer clockwise increases the output voltage.
Module Inhibit - (Cathode) No connection Molex mating connectors and pins (Contact Molex for other pin alternatives) Description Molex part TDK-Lambda number part number 10 way Milli-Grid with locking ramp 51110-1060 12934 Crimp terminal, gold flash, female, supplied on a reel...
YC Modules The output voltage can be adjusted from the factory set point across the range shown in the datasheet by performing the following operation: Apply AC power Individually adjust both potentiometers, situated to the right of the signal connectors, so that the output voltage of each board assembly is 50% of the desired output voltage.
Remote Sense - No connection No connection Molex mating connectors and pins (Contact Molex for other pin alternatives) Description Molex part TDK-Lambda number part number 10 way Milli-Grid with locking ramp 51110-1060 12934 Crimp terminal, gold flash, female, supplied on a reel...
YF Modules The output voltage can be adjusted from the factory set point across the range shown in the datasheet by performing the following operation: Apply AC power Individually adjust both potentiometers, situated to the right of the signal connectors, so that the output voltage of each board assembly is 50% of the desired output voltage.
Remote Sense - No connection No connection Molex mating connectors and pins (Contact Molex for other pin alternatives) Description Molex part TDK-Lambda number part number 10 way Milli-Grid with locking ramp 51110-1060 12934 Crimp terminal, gold flash, female, supplied on a reel...
ZC Modules The output voltage can be adjusted from the factory set point across the range shown in the datasheet by performing the following operation: Disconnect the AC power, then remove the two busbars connecting the Ch1 + and Ch1 0V terminals together ...
Remote Sense - No connection No connection Molex mating connectors and pins (Contact Molex for other pin alternatives) Description Molex part TDK-Lambda number part number 10 way Milli-Grid with locking ramp 51110-1060 12934 Crimp terminal, gold flash, female, supplied on a reel...
ZD Modules The output voltage can be adjusted from the factory set point across the range shown in the datasheet by performing the following operation: Disconnect the AC power, then remove the two busbars connecting the Ch1 + and Ch1 0V terminals together ...
Remote Sense - No connection No connection Molex mating connectors and pins (Contact Molex for other pin alternatives) Description Molex part TDK-Lambda number part number 10 way Milli-Grid with locking ramp 51110-1060 12934 Crimp terminal, gold flash, female, supplied on a reel...
ZF Modules The output voltage can be adjusted from the factory set point across the range shown in the datasheet by performing the following operation: Disconnect the AC power, then remove the two busbars connecting the Ch1 + and Ch1 0V terminals together ...
Remote Sense - No connection No connection Molex mating connectors and pins (Contact Molex for other pin alternatives) Description Molex part TDK-Lambda number part number 10 way Milli-Grid with locking ramp 51110-1060 12934 Crimp terminal, gold flash, female, supplied on a reel...
EFFICIENCY The following chart shows the measured efficiency of a QM7FSDL 24SCS 24SCS 24SCS configuration. POWER SUPPLY OPERATION No Load Operation No minimum load is required for the power supply to operate within specification. Remote Sense Remote sensing is provided on select modules to compensate for voltage drops in the power connections to the load.
Capacitive Load Operation Please refer to the QM datasheets for maximum output capacitance load values. Transient Load Operation – DM Module Under the following conditions it is possible to get a negative transient on Ch2 that is greater than10%: Ch1 is set to min Vo 500uF/A on both outputs And either: 0 –...
COOLING REQUIREMENTS The QM series has internal variable speed cooling fans. A minimum clearance of 50mm should be provided at the input and output ends to allow air to enter and exit the power supply.
RELIABILITY MTBF Test Specifications: Telcordia SR332 Issue 4, 2016 Test Method: Method I (Parts Count), 90% upper confidence level. Device Method I-D, Quality II, Electrical Stress 50%. Results The failure rates are given for the different sub-assemblies as both mean failure rate and with an upper confidence level of 90% in the table below at 70°C, 40°C and 25°C.
To calculate the reliability at 25°C for the configuration: QM7FSDL T5H 12ZF 24SB 12/12DM The F in QM7FSDL shows this is a unit with built in fans. EndCap & Fans 195.518 QM7 Converter 85.757 47.360 12ZF (2 × 12SC in parallel) 175.618 24SB 87.809...
EMC PERFORMANCE Conducted and Radiated Emissions Result for a QM7 Configuration with one of each type of module, at 1500W load, 7dB margin to Class B (High line) Conducted emissions EN 55011 Class B Quasi-Peak EN 55011 Class B Average 150k Frequ en cy in H z In configurations with dual output modules (DM or DH) the margin is reduced with very low load levels.
If USB - PMBus™ Adaptors are used, care should be taken in their placement, as these can cause interference problems. For the purpose of EMC testing, TDK-Lambda recommends a screened box to reduce its emissions. Any system components that are known to be sources of interference should be physically separated from the PMBus™...
The Electrical Fast Transient (EFT) immunity test to EN 61000-4-4 and Conducted RF Immunity to EN 61000-4- 6 have tests to be applied to DC Power Ports and Signal Ports and Control Ports where the length of the connection is greater than 3m. Due to practical limitations of voltage drops down cables this test was not applied to output voltage modules of less than 12V nominal.
WEIGHT The QM power supply weights are variable determined by the number of modules fitted. From the configuration code select the modules, options and blanking plate(s). Module Weight (g) Notes QM4 Converter & Chassis 1020 QM5 Converter & Chassis 1030 QM5 Converter, Chassis &...
PMBus™ Overview of the PMBus™ Interface Standard 100kHz operation PEC (Packet Error Checking) supported Monitoring of status - reading and clearing of fault and warning indications Reading manufacturing related data – manufacturer id, model name, serial number & manufacturing date Reading of fan speeds and inlet temperature Reading operating time and power cycle count On/Off control of the module outputs by PMBus™...
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The Fan Fail Out signal (J5-4) Provided by an internal FET which is referenced to pin 12 of the option connector. Pin 4 is the FET drain (+) and pin 12 the source (-). This signal provides a warning that the QM fan has stopped or the fan speed is slowing and should be replaced.
Supported PMBus™ Commands See references [1], [2], and [3] for details of the PMBus™ command structure and transaction types. Command Name Command Code Transaction Type(s) Notes OPERATION Read/Write Byte ON/OFF CONFIG Read/Write Byte CLEAR FAULTS Send Byte CAPABILITY Read Byte STATUS BYTE Read/Write Byte General unit status...
On/Off Configuration – Command 02h This command is used to configure the mode of operation of the unit. The read and write byte transaction types are supported. The following table shows the data bytes sent /read that indicate the available modes of operation.
Reading Status from the Unit - Errors and Warnings The status of a unit can be determined through a hierarchy of status bytes. Interrogation of a unit starts with reading the Status Byte. Read and Write transactions are supported to the status bytes – writes are used to clear transitory status indicators.
Read word transaction type. The fan speed is returned in LINEAR11 format. The value is in units of RPM. If no fan is fitted this will return 0. Read Fan speed 2 – Command 91h Read word transaction type. The fan speed is returned in LINEAR11 format. The value is in units of RPM. If one or no fans are fitted this will return 0.
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Read byte transaction type. The value returned represents the capability of the PMBus™ implementation. A fixed value is returned by QM units of 80h. This indicates: PEC Supported 100kHz Max Speed SMBAlert Not Supported Numeric Format LINEAR11 ...
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Recommended PMBus™ Interface Adapter The following USB to PMBus™ adapter is recommended: Manufacturer: Texas Instruments Manufacturer Part Number: USB-TO-GPIO This is available from many suppliers, for example: Farnell order Code: 1901883 Digi-Key Part Number: 296-23114-ND RS Stock Number: 819-7562 Mouser Part Number: 595-USB-TO-GPIO References Ref[1]: System Management Bus (SMBus) Specification.
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