Lenze E82xVxxxKxxxxx - Manual (Page 487)

Braking operation
Braking operation with external brake resistor
8200 vector 15 ... 90 kW
13
l
487 EDS82EV903 EN 3.0
13.2.2 8200 vector 15 ... 90 kW
Additional braking unit for 8200 vector 15 ... 90 kW
For braking operation with 8200 vector frequency inverters in a power range from 15 ... 90
kW, one of the following braking units (accessories) is required which is coupled to the DC
bus of the frequency inverter (terminals +UG, –UG):
ƒ Brake chopper EMB9352 and external brake resistor
– For high peaks and continuous braking powers
ƒ Brake module EMB9351 (with integrated brake resistor)
– For frequent braking with little braking power or infrequent braking with medium
power
A combination of brake choppers and brake modules connected in parallel is permissible.
The following versions of brake choppers and brake modules are available:
ƒ EMB935x−E for mounting rail installation or in conjunction with a mounting frame
(accessories) for installation in push−through design
ƒ EMB935x−C for installation in cold−plate design
Standards and application conditions
Standards EMB9351/EMB9352
Conformity CE Low−Voltage Directive (73/23/EEC)
Approvals UL 508C Power Conversion Equipment (file no. E132659)
Environmental conditions EMB9351/EMB9352
Climatic conditions
Storage IEC/EN 60721−3−1 1K3 (−25 ... +70 °C)
Transport IEC/EN 60721−3−2 2K3 (−25 ... +70 °C)
Operation IEC/EN 60721−3−3 3K3 (0 ... +55 °C)
Peak braking current reduction from +40 °C: 2.5 %/°C
Site altitude 0 ... 4000 m amsl
Peak braking current reduction from 1000 m amsl: 5 %/1000 m
Pollution EN 61800−5−1 Degree of pollution 2
Vibration resistance Germanischer Lloyd General conditions: acceleration resistant up to 0.7g
Operating conditions EMB9351/EMB9352
Mounting positions Vertical
Mounting clearances
Above/below ³ 100 mm
To the sides Modular design