WAGO Battery Modules 787-871, 787-872, 787-873, 787-876, 787-1671
Instruction Manual
Functions and Areas of Application
The battery module, in conjunction with the UPS charge and control device 787-870, 787-875, or 787-1675, is used to create an uninterruptible 24 Vdc system voltage.
New features with the introduction of intelligent battery modules (with "Battery Control"):
- Automatic detection of connected battery modules.
- Reliable early warning signal when battery life expectancy is declining.
- Extended life expectancy through temperature-controlled battery management.
Changing the Batteries
It is not necessary to switch off the UPS charge and control unit to change the batteries. The following procedures are recommended for battery modules:
- Remove all connectors and fuses.
- Open the housing and disconnect the battery wiring.
- Change both batteries.
- Reconnect wiring and close housing.
- Insert all connectors and fuses.
Now connect the charge and control unit together with the battery module to the 24V DC supply voltage.
The battery change must be acknowledged at the battery module. To do this, push the reset button during operation for at least 5 seconds (it is located at the side of the terminals for both control lines). It can be accessed, for example, with a small ball pen refill. The charge and control unit will signal the acknowledgment.
Installation
Safety Measures Before Installation
- Protect the equipment against improper use. Components must not be bent, and isolation spacing must not be changed, especially during handling and transport.
- Avoid contact with electrical components and terminals.
- Always disconnect the equipment from the mains supply before commencing installation or wiring.
- Observe product descriptions, technical information in the main catalog, and markings on the equipment rating plate.
- Ensure sufficient aeration and ventilation of the battery module's location.
- Rechargeable batteries may only be disposed of when fully discharged and in accordance with valid regulations.
Installation Procedure
The device may only be installed and put into operation by qualified personnel. Corresponding national regulations (e.g., VDE, DIN) must be observed. The VDE 0510 regulations regarding storage, installation, and operation of the rechargeable battery module must be observed.
- No minimum spacing is required to neighboring components.
- Battery modules should be connected low-resistively and installed in a cool place (typically at the lower end of control cabinets).
- The arrow in the dimension drawings indicates the position of the installed batteries.
- Overhead installation is not allowed; all other mounting positions are possible.
- Connect the supplied terminals only after installation is finished to avoid accidental triggering of the fuse.
- During longer downtimes or when devices are interconnected, it is recommended to pull the fuse.
- For guaranteed buffer operation, it is essential to regularly exchange both batteries according to their specified lifespan.
- When replacing rechargeable batteries, use two batteries from the same batch.
- The device automatically adjusts the optimal charge voltage and charge current for optimal battery operation.
- Connecting the control lines is recommended for optimal battery management. Observe correct polarity.
- If several batteries are connected in parallel, connect the control lines to only one battery.
- In case of non-use of the installation (Battery > 3.5Ah max. 1 month / Battery < 3.5Ah max. 1 week), pull the fuses on the assembled battery module.
Notice: Discharged batteries must be recharged as soon as possible to prevent damage.
Connection
Notice: Changed hardware from production date 06/2012 (from production order number 216654). Introduction of intelligent battery modules.
- Internal fuses: 2x25A for 24V/7Ah...12Ah.
- Reset button for acknowledgment after changing batteries (example shown for 24V/12Ah).
- To reduce the risk of mistaking the terminals, use only the supplied terminals.
- If several batteries are connected in parallel, connect the control lines to only one of the batteries.
Technical Data
| 787-1671 | 787-876 | 787-871 | 787-872 | 787-873 | |
|---|---|---|---|---|---|
| Battery Modules | Consisting of two maintenance-free AGM rechargeable batteries for use with a UPS charge and control device | ||||
| Standards | UL | UL | UL | UL | UL |
| Input Data | |||||
| Nominal input voltage | 24 Vdc | ||||
| Nominal capacity | 0.8 Ah | 1.2 Ah | 3.2 Ah | 7 Ah | 12 Ah |
| Recommended max. charging current | 0.2 A | 0.3 A | 0.8 A | 1.8 A | 3 A |
| Recommended end-of-charging voltage (at 25° C) | 27 Vdc | 27 Vdc | 27 Vdc | 27 Vdc | 27 Vdc |
| Output Data | |||||
| Nominal output voltage | 24 Vdc | ||||
| Nominal output current | 5 A | 7.5 A | 20 A | 40 A | 40 A |
| Internal fuse (type FK2) | 10 AT (Mini) | 15 AT | 25 AT | 2 x 25 AT | 2 x 25 AT |
| Connection in parallel | Yes | Yes | Yes | Yes | Yes |
| Environment | |||||
| Installation in Pollution Degree 2 environment | ✓ | ✓ | ✓ | ✓ | ✓ |
| Use Copper Conductors only, rated 75 °C | Serie 721, max. 2.5 mm² | Serie 231, max 2.5 mm² | Serie 831, max. 10 mm² * | Serie 231, max 2.5 mm² (max. wire length 3 m) | Serie 231, max 2.5 mm² (max. wire length 3 m) |
| Ambient temperature | -15° C ... +40°C | ||||
| Ambient temperature discharge | -20° C ... +40° C | ||||
| Storage temperature | -20° C ... +40° C | ||||
| Service life | 5 years at 20° C, 4 years at 30° C, 2 years at 40° C | 5 years at 20° C, 4 years at 30° C, 2 years at 40° C | 5 years at 20° C, 4 years at 30° C, 2 years at 40° C | 5 years at 20° C, 4 years at 30° C, 2 years at 40° C | 5 years at 20° C, 4 years at 30° C, 2 years at 40° C |
| Latest startup date | 6 months at 30...40° C | ||||
| Self discharge | 3%/month at 20°C | ||||
| Rechargeable battery type (2 pcs./module) | YUASA, NP0.8-12 Alternative: YUASA, YO.8-12 Sun Battery MB12-0.8 |
YUASA, NP1.2-12 Alternative: PANASONIC, LC-R121R2PG Sun Battery SB12-1.2 |
YUASA, NP3.2-12 Alternative: PANASONIC, LC-R123R4PG Sun Battery SB12-3.4 |
YUASA, NP7-12 | YUASA, NP12-12 Alternative: PANASONIC, LC-RA1212PG1 Sun Battery SB12-12L |
| Safety and Protection | |||||
| Protection index | IP 20 | ||||
| Safety class | II | ||||
| Overvoltage category | III | ||||
| Terminals and Mounting | |||||
| Input/Output (WAGO multi plug system) | Series 721, max. 2.5 mm² | Series 231, max 2.5 mm² | Series 831, max. 10 mm² * | Series 231, max 2.5 mm² (max. wire length 3 m) | Series 231, max 2.5 mm² (max. wire length 3 m) |
| Battery control (WAGO multi plug system) | ✓ | ✓ | ✓ | ✓ | ✓ |
| Mounting | Mounting on DIN 35 mm rails, direct screw mounting | ||||
| Dimensions and weights | |||||
| Weight (without packaging) | 1.0 kg | 1.8 kg | 4 kg | 7.1 kg | 10.5 kg |
| Dimensions width x height x depth** | 72 x 97 x 107 mm | 76.2 x 165 x 175.5 mm | 55 x 131 x 136.5 mm | 217.5 x 236 x 86 mm | 217.5 x 236 x 120.5 mm |
| Order no. | 787-1671 | 787-876 | 787-871 | 787-872 | 787-873 |
* WAGO Series 831: With ferrule max. 6 mm². Please use suitable anti-splaying method for fine-stranded conductors.
** Dimensions without terminals, depth T from upper edge of DIN rail.
Buffer Times Depending on Output Current
A graph shows buffer times in minutes for different output currents (in Amperes) for models 787-871, 787-872, 787-873, 787-876, and 787-1671. The graph indicates that higher output currents result in shorter buffer times.
Wiring Diagram
A diagram illustrates the wiring connections for the power supply, charge and control unit, and battery modules. It shows connections for Power, CTRL, OUT, IN, BAT, and load (unbuffered and buffered). The diagram specifies a maximum wire length of 3 m for certain connections.
WAGO GmbH & Co. KG
Hansastr. 27
32423 Minden
Germany
Phone: +49 571-887-0
Fax: +49 571-887-169
info@wago.com
www.wago.com
Technical changes reserved. Subject to change.
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