Release / Voltage; Adjusting The Air Gap - Lenze m500-P Series Operating Instructions Manual

8 Maintenance/repair
Maintenance operations

Release / voltage

8.3.6 Release / voltage
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Danger!
The rotating rotor must not be touched.
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Danger!
Live connections must not be touched.
1. Observe the brake's function while the drive is being operated. The armature
plate must be tightened and the rotor must move free of residual torque.
2. Measure the DC voltage on the brake.
–
The DC voltage measured after the overexcitation time (, operating
instructions, forced voltage rectifier) must equal the voltage for the holding. A
deviation of up to ±10 % is permissible.
8.3.7

Adjusting the air gap

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Danger!
The brake must be free of residual torque.
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Stop!
For the flange design, please observe the following if the flange is
mounted with additional screws:
Clearing holes in the end shield must be provided behind the threaded
holes in the flange that are designed for the screws. Without clearing
holes, the minimum rotor thickness cannot be utilised fully. In no case
must the screws press against the end shield.
1. Loosen screws (10).
2. Screw the sleeve bolts further into the stator using an open−jawed spanner.
revolution reduces the air gap by approx. 0.15 mm.
3. Tighten screws, torques (¶ 49).
4. Check air gap "s " near the screws using a feeler gauge, "s
L
5. If the deviation of "s
Lrated
48
" is too great, repeat the adjustment process.
1
/
6
" (¶ 49).
Lrated
Lenze ¯ BA 33.0008 ¯ 5.0