User manual ELECTRO-VOICE 665 DATASHEET
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Manual abstract: user guide ELECTRO-VOICE 665DATASHEET
Detailed instructions for use are in the User's Guide.
[. . . ] All instructions concerning the handling of MOS - circuits have to be observed.
SAFETY COMPONENT (HAS TO BE REPLACED WITH ORIGINAL PART ONLY)
1 2 3
3-digit LC display for charging voltage or charging current LC display switch showing the charging voltage in V or the charging current in A LED function and failure indications: Failure indication for overvoltage Failure indication for low voltage Function indication for mains voltage OVERVOLTAGE LOW VOLTAGE LINE VOLTAGE
Function indication for battery voltage BATTERY VOLTAGE Function indication for charging current 4. 5 6 7 8 9 Fuse for mains output socket Mains output socket MAINS OUTPUT Fuse for the mains input Mains input socket CHARGE OUTPUT Sub-D socket BATTERY CONTROL CHARGE CURRENT
LIST OF CONTENTS
SAFETY INSTRUCTIONS / SERVICE INSTRUCTIONS . Application The charging unit 665 was especially designed for fully automatic charging and monitoring of batteries in the emergency power supplies of alarm devices. In conjunction with the battery modules DEM 316 with 38 Ah or DEM 317 with 65 Ah rated capacity, this combination results in a reliable and failsafe emergency power source for continuous battery power supply operation. [. . . ] The line length must not exceed 2 m.
Another device can be connected at the mains connector MAINS OUTPUT (5), if its power consumption does not exceed 4 A. The mains connector MAINS OUTPUT (5) is protected against overloading by a fuse (4) with the rating T4A. A fuse rating above T4A is not admissible.
lf all connections have been made correctly, the unit can be connected with the mains by means of the supplied power cable. The mains cable is connected at the 3-pole mains connector socket (7) on the unit
The unit is wired to 2 30V AC by the factory. Switching over to 115 V AC is possible via wire jumpers inside the unit, (see Section 4).
Fig. 1 Connection of the battery to the charging unit
3. 1 Control connector BATTERY CONTROL Various control input/outputs are available at the 15-pole D-sub pin connector BATTERY CONTROL (9): (Also see Figure 2): - Input temperature sensor +TEMP/-TEMP - Output exhaustive discharge relay +LVR/-LVR - Failure signal output FAILURE
Connections of the BATTERY CONTROL pin connector
Note The switch rating of the failure signal output amounts to max. The contacts 2, 3 and 13 are provided for test purposes only and must not be used.
4. Alteration of the mains voltage (to be performed by qualified personnel only) Attention: Before removing the top unit cover, the device must have been disconnected from the mains for at least 2 minutes, since the capacitors in the device carry hazardous voltage which needs to discharge first. For 115V AC operation, the mains powerfuse (6) must be replaced by a fuse 2A slo-blo (T2A). A T2A label must be stuck over the T1 A marking above the mains power fuse (6). lf the battery charging current falls below the adjusted value of approx. 10 mA, the green LE D (3) CHARGE CURRENT goes out and an error message is activated. lf there is no load connected to the battery, the battery charging current may fall below this limiting value. In such cases it is advisable to connect a resistor of 2200 ohms to the battery output.
6. 6 Reverse voltage and short-circuit protection Reverse volltage protection prevents damage which may be caused by possible polarisation errors when the battery is connected to the charging unit. The short-circuit protection disconnects the battery from the charging unit in the event of shorted cells or total short-circuit. The output fuse F 503 (see Figure 3) in the charging unit blows in this case and must be replaced by a slo-blo fuse with the rating 4A (T4A). In the event of a blown fuse, the green LED (3) CHARGE CURRENT goes out and an error message is activated.
6. 7 Collective failure signal The collective failure signal is designed as a floating contact, making available malfunctions of the battery such as: disconnection at LOW VOLTAGE, wrong polarity or battery short-circuit, as well as malfunctions of the charging unit such as: absence of LINE VOLTAGE, OVERVOLTAGE or failures in the charging circuit CHARGE CURRENT for long-range transmission. The corresponding failure is indicated on the unit itself via the corresponding LED (3) lighting up or going off respectively, (see page 2 as well as Section 6. 1 to 6. 6). The floating contact of the collective failure indication is wired at the D-sub pin connector BATTERY CONTROL (9) (see Figure 2).
6. 8 Volt-/Amperemeter A 3-digit LC display (1) with toggle switch (2) is provided for measurement of the battery voltage or the charging current. With the switch V/A at the front panel in position V, the battery vollage is shown. Likewise the charging current is shown with the switch in position A.
6. 9 Temperature tracking The charging voltage requires battery-adapted temperature tracking in conjunction with operation under ambient temperatures between +5°C . . [. . . ] Glossary: - Continuous battery power supply (standby operation) In this mode, the battery is constantly kept at full charge. It only gives off current if the DC source supplied by the mains fails. - Nominal capacity: The nominal capacity is the value in ampere-hours for a 20-hour even, uninterrupted discharge with up to the cutoff voltage of 1. 75 V/cell at a temperature of 22°C. - Capacity: The capacity of a battery is the amount of electricity which can be extracted under the condlitions in question. [. . . ]
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