Control cabinet installation
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Risk of deflagration A missing or insufficient ventilation of the control cabinet in which the battery pack is mounted can lead to deflagration in the control cabinet.
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Extreme environmental conditions Extreme environmental conditions can cause damage to the battery pack.
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Ventilation control cabinet
In the event of a fault or heavy load, hydrogen may leak from the batteries inside the battery pack. Oxygen is present in the control cabinet. If the hydrogen cannot escape from the control cabinet and the hydrogen concentration in the control cabinet exceeds a value of 4 %vol, an explosive mixture is formed and deflagration may occur in the control cabinet. To keep the hydrogen concentration in the air low and thus reduce the risk of deflagration, you must ensure appropriate ventilation of the control cabinet in accordance with EN 50272-2. You can achieve this through natural ventilation. Equip the control cabinet with openings for air circulation. Position the openings either on opposite walls or in the same wall at least 2 m apart.
Control cabinet installation
The battery pack C9900-U332 is designed for installation in control cabinets of machine and plant technology. The environmental conditions specified for operation must be observed (see chapter 7 Technical data).
If you need the dimensions of the battery pack for mounting, you can get them in chapter 4.2 Dimensions.
Three different mounting options are available for the C9900-U332 battery pack:
- Vertical via the rear on the DIN rail
- Horizontally via the rear on the DIN rail
- Via the mounting plate on the rear side without DIN rail
As delivered, the battery pack is designed for vertical mounting on the DIN rail. To mount the battery pack horizontally, you must first convert the mounting latches on the back of the battery pack.
Follow the steps below to convert the mounting notches, as shown in figures 7 and 8:
- 1. Loosen the screw of the ground connection plate with a 3.0 mm Allen key (section A).
- 2. Remove the ground connection plate (section B).
- 3. Remove the screws of the two mounting notches using a 2.5 mm Allen key (section C).
- 4. Remove the two mounting notches (section D).
- 5. Rotate the battery pack by 90 °.
- 6. Mount the two mounting notches (section E).
- 7. Mount the ground connection plate (section F).
- You have converted the mounting notches for horizontal mounting.
Regardless of whether you want to mount the battery pack vertically or horizontally on the DIN rail, you must proceed in the same way. Two types of DIN rail are commonly used in system engineering:
- TS 35 x 7.5
- TS 35 x 15
A flat DIN rail of type TS 35 x 7.5 is too weak for the battery pack. Accordingly, you may only mount the battery pack on a DIN rail of type TS 35 x 15.
Mounting on the DIN rail
To mount the battery pack on the DIN rail, follow the steps below shown in Figure 9:
- 1. Place the battery pack on the DIN rail via the rear side (section A).
- 2. Tighten the four hexagon socket screws of the mounting notches (section B).
- You have installed the battery pack on the DIN rail.
Mounting via mounting plate
In addition to mounting on the DIN rail, you have the option of mounting the battery pack without a DIN rail using the mounting plate on the rear. You can align the battery pack as you wish.
Two requirements must be met for mounting the battery pack via the mounting plate:
- You must remove the mounting notches from the mounting plate (see earlier in the chapter).
- You must provide the wall on which the battery pack is to be mounted with appropriate drill holes.
To mount the battery pack via the mounting plate, follow the steps below:
- Place the battery pack with the marked locations of the mounting plate (see Fig. 10) in front of the prepared drill holes.
- Insert the M4 fastening screws into the drill holes.
- Tighten the fastening screws.