Power Supply Unit PS 1000/ VAC / 24 VDC Continuous Current 40 A. Electronically controlled power supply unit

Transcription

1 Power Supply Unit PS 1000/ VAC / 24 VDC Continuous Current 40 A PS 1000/ VDC Electronically controlled power supply unit Table of Contents Page 1 Power Supply Unit PS 1000/ Mounting the PS 1000/ and Mounting the PS 1000/ and 011 in the M 3421 Subrack ESD Protective Measures Mounting the Power Supply Unit Removing the Power Supply Unit Product Description Standards Block Diagram Function of the Fault Relay Operation Operating Multiple Power Supply Units in the M 3421 Subrack Mechanical Coding Adjustment of Power Supply Units Connected in Parallel Technical Data PS 1000/ Maintenance of 12

2 1 Power Supply Unit PS 1000/ The electronic power supply unit is designed for the power supply of safety-related HIMA controllers. Different variants of the power supply units exist: Variant Mounting Form Mounting PS 1000/ Cartridge M " subrack PS 1000/ coated Cartridge M " subrack PS 1000/ Wall mounting Backplane PS 1000/ coated Wall mounting Backplane Table 1: Power Supply Unit Variants 1.1 Mounting the PS 1000/ and 017 The scope of delivery of the variants PS 1000/ and 017 includes: Designation Power supply unit with wall bracket Description Wall bracket with four fastening points High-current female connector (XG.1) Power supply output L-, L+, R+ Female connector (XG.2) Female connector (XG.3) Lettering and marking kit Fault relay contact NO, C, NC Power supply input L, N, PE Label for female connectors and power supply unit Table 2: Scope of Delivery of the Variants PS 1000/ and 017 Observe the following points when mounting the PS 1000/ and 017: Maintain a distance of 30 mm in front of the fan grill to ensure sufficient aeration. When wiring, observe the minimum cross sections specified in Chapter 1.8. The power supply unit is equipped with four fastening points and can be secured vertically or horizontally. The fastening points are spaced in 25 mm intervals such that the power supply unit fits the mounting frame's profile rails within the control cabinet, see the scale drawing in Figure 2. If the four power supply units are mounted vertically on the profile rail, they can be located adjacent to one another in an 800 mm wide control cabinet, see Figure 3. To secure the power supply unit to the profile rail, use the HIMA fastening parts kit M 2212 (part no ) consisting of cage nuts, Phillips head bolts (M6 x 16) and washers. For the 4.5 mm drilled holes, use B 5.5 x 13 tapping screws in accordance with DIN To secure the power supply unit to a mounting plate, use M6 screws and washers. 2 of 12

3 Tools, components and utilities Screwdriver, 1.0 x 5.5 blade for high-current female connector (XG.1) Screwdriver, 0.6 x 3.5 blade for female connector (XG.2, XG.3) 1. Prior to mounting the power supply unit, stick the corresponding labels of the lettering and marking kit to the female connectors and power supply, see Figure Secure the power supply units to the profile rail or backplane (e.g., mounting plate). For the profile rail, use the fastening parts kit M 2212 or the tapping screws. 3. Wire the female connectors using the corresponding screwdriver. 4. Plug the wired female connectors into the power supply unit and use the corresponding screwdriver to secure them, see Figure Ensure that strain is relieved from the connected cables. 6. The power supply units must have a conductive connection to the earth of the mounting frame or backplane. XG.2 Fail XG.1 24VDC NO C NC L- L+ R+ XG.3 230VAC L N PE Figure 1: Location of Labels and Female Connectors 3 of 12

4 71,90 25,00 125,00 25,00 96,70 175,00 Type Label Figure 2: Scale Drawing of the Variants PS 1000/ and 017 for Wall Mounting Figure 3: Four Power Supply Units Vertically Secured in the 800 mm wide Control Cabinet 4 of 12

5 1.2 Mounting the PS 1000/ and 011 in the M 3421 Subrack The equipment depends on the wiring of the M 3421 subrack. Slots not in use can be fitted with the M 4413 dummy front plate (part no ). Maintain a distance of 30 mm to the front of the power supply fan ESD Protective Measures Only personnel with knowledge of ESD protective measures may install and remove a power supply unit. An electrostatic discharge can damage the electronic components within the systems. Touch a grounded object to discharge any static in your body. When performing the work, make sure that the workspace is free of static, and wear an ESD wrist strap. If not used, ensure that the module is protected from electrostatic discharge, e.g., by storing it in its packaging Mounting the Power Supply Unit A Phillips screwdriver PH1 is required for mounting the power supply unit. 1. Check the mechanical coding on the subrack. 2. In the off-state, insert the power supply unit completely in the subrack. 3. Use the four captive screws to secure the power supply unit to the subrack housing. 4. The M 4413 dummy plates can be secured to the slots not in use. Please check the correct coding on the subrack before inserting the power supply unit. Inserting a 48-V instead of a 24-V power supply unit causes the destruction of electronic components Removing the Power Supply Unit A Phillips screwdriver PH1 is required for removing the power supply unit. 1. Use the overcurrent circuit breaker to switch off the power supply unit. 2. Release the four captive screws on the subrack. 3. Remove the power supply unit from the subrack. 5 of 12

6 1.3 Product Description Figure 4: PS 1000/ VDC Front View and Rear View Figure 5: PS 1000/ VDC Side View The PS 1000/ and 011 variants are modular cartridges for use in the 19'' subrack M 3421, with 4 RU high, see M 3421 data sheet. The M 3421 subrack is designed for up to three power supply units and is used for the HIMA PS 1000 series of power supply units. This variant is mechanically coded to ensure that only the correct power supply unit type can be inserted into the subrack, see Chapter The PS 1000/ and 017 variants are secured to a backplane (e.g., mounting plate), see Chapter 1.1. The power supply unit supplies a 24 VDC output voltage to the L+/L- or R+/L- terminals with a nominal current of 40 A (short-circuit-proof) and bridges voltage drop outs of 20 ms. For redundant operation, the power supply units can be connected in parallel via the decoupled R+ terminals, see Chapter of 12

7 The power supply unit is equipped with a fan on the front side. If the fan fails, the fault relay trips, see Chapter 1.5. The fault relay's contact is lead through to the rear side of the power supply unit. Two LEDs on the front plate indicate that the power supply is operating properly. The green LED RUN is lit if sufficient output voltage is available. The red LED ERR is lit if fan speed is too low, the fan is idle or if the output voltage is too low. A ΔU potentiometer is located on the front side for adjusting the voltage, see Chapter Standards The power supply unit's output voltage meets the requirements for SELV- and/or PELV circuits. PS 1000/ CE IEC : 2007 IEC : 2005 IEC : 2007 IEC : 2005 EMC Directive EX Directive Low Voltage Directive BUREAU VERITAS Table 3: Standards 2004/108/EC ATEX 94/9/EC, for variants PS1000/ and /95/EC Rules for the Classification of Steel Ships 1.4 Block Diagram Figure 6: Block Diagram 7 of 12

8 1.5 Function of the Fault Relay The fault relay's contact can be used to connect optical and acoustic detectors with a current input of up to 1 A, see Chapter 1.8. The fault relay is activated during normal operation and trips if the following faults occur: The fan speed is too low. The fan is blocked. The output voltage is too low. The temperature is too high. The power supply unit is defective. The following table describes the statuses of the fault relay contacts: Contact (Fail) C-NC closed (C-NO open) C-NC open (C-NO closed) State Relay energized, normal function Relay de-energized, fault within the power supply unit Table 4: Fault Relay States 8 of 12

9 1.6 Operation The power supply unit must be switched on and off using the thermal overcurrent circuit breaker located on the front side. To switch on, press the overcurrent circuit breaker until it is engaged. To ensure the soft start electronics can regulate the power-on current, wait at least 1 minute after switching the power supply unit off and before switching it on again. All connections are established using separated female connectors located on the back of the power supply unit. The decoupled R+ terminal must be used when multiple power supply units are connected in parallel to increase power or implement redundancy Operating Multiple Power Supply Units in the M 3421 Subrack All connections for the power supply units are established using separated female connectors located on the back of the subrack, see Figure 8. With redundant power supply units, a unit can be replaced during operation. Prior to removing the power supply unit, it must be switched off using the overcurrent circuit breaker located on the front side. ERR ERR ERR DU DU RUN DU RUN F F F Figure 7: Front View of a Fully Equipped M 3421 Subrack XG.8 Fail XG.7 24VDC XG.5 Fail XG.4 24VDC XG.2 Fail XG.1 24VDC NO C NC L- L+ R+ NO C NC NO C NC L- L+ R+ L- L+ R+ XG.9 230VAC L N PE XG.6 230VAC L N PE XG.3 230VAC L N PE Figure 8: M 3421 Subrack's Rear View with Terminals 9 of 12

10 1.6.2 Mechanical Coding The variants for the M " subrack are mechanically coded on the rear side. The coding is performed with up to 4 coding pins and the corresponding coding screws are screwed in to the rear side of the M 3421 subrack. The Variants PS 1000/ and 011 are not coded. To prevent the use of coded power supply units, screw all coding screws delivered with the PS 1000/ and 011 in to the M 3421 subrack, see Figure 9. Figure 9: Securing the Coding Screws on the M 3421 Subrack 1.7 Adjustment of Power Supply Units Connected in Parallel The output voltage for the power supply units is preset in the factory to 24.2 V ± 10 mv with 40 A load on L+. Decoupling reduces the output voltage on R+ by the amount of voltage drop, see Chapter 1.8. To avoid load differences during parallel operation, connect cables of the same length to R+. The power supply units are adjusted to other voltage ranges using the ΔU potentiometer located on the front side. 1. Measure the output voltage on each power supply unit's R+. 2. Turn the ΔU potentiometer to the desired output voltage (approx VDC) 3. Repeat step 2 with all power supply units connected in parallel. 4. Use a clamp-on ammeter to verify that the current of all power supply units connected in parallel is distributed uniformly. 5. If the current is not distributed uniformly, use the ΔU potentiometer to adjust the output voltage. 10 of 12

11 1.8 Technical Data PS 1000/ Power Supply Unit Input voltage Output voltage L+ Output voltage R+ Thermal overcurrent circuit breaker Load Crest factor at 20 A output current Max. switch-on current 230 VAC, % and 240 VAC, %, Hz 24 VDC, short-circuit-proof 10 % adjustable using a ΔU potentiometer (L+) VDC at 40 A 250 VAC, 10 A 40 A continuous load 2.15 (I RMS = 3.25 A, I peak = 7.0 A) 7 A Power factor 0.71 Regulation < 100 mv with load change of % Efficiency > 89 % Power dissipation Interruption time Type of protection Humidity < 110 W 20 ms IP20 Ambient temperature C Storage temperature C Dimensions of the cartridge for wall mounting Weight External fusing Connectors L, N, PE (XG.3) L+, R+, L- (XG.1) NC, C, NO (XG.2) Fault contact (Fail) Switching current MTTF Table 5: Product Data < 95 % relative humidity, non-condensing 28 HP, 4 RU W x H x D: 142 x 173 x 281 mm W x H x D: x x mm approx. 6 kg 16 A Minimum cross section for wiring: 240 VAC 1.5 mm 2 24 VDC 10 mm 2 Fail 0.5 mm 2 One potential-free change-over contact, connection via terminals 3 x 1.5 mm 2 located in the subrack 30 VDC / 1 A 30 VAC / 0.5 A 30 years 11 of 12

12 1.9 Maintenance HIMA strongly recommends replacing the power supply unit fan in accordance with the specified maintenance interval. HIMA cannot be held liable for damages caused by improper maintenance. Operating temperature 40 C Maintenance Interval Every 5 years > 40 C Every 3 years Table 6: Maintenance Interval The fan may only be replaced by HIMA. Additional maintenance actions are not required. 12 of 12