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Summary of Contents for GEM GLS Series
Page 1
GLS Series GLS20 GLS26 GLS34 GLS40 GLS48 Gearless permanent magnet synchronous motor Operating instructions Store for future use! GEM-GLS-v010323 (subject to change without prior notice)
Contents of the operating instructions These operating instructions help you to work safely on and with the elevator machines GEM series GLSxx. They contain safety instructions that must be complied with as well as information that is required for failure-free operation of the elevator machine.
GEM to correct the problem and improve the quality and reliability of the machines; 1.4.8.6 – GEM reserves the right to ask back defective materials in order to check the cause of the problem. If defective materials don’t reach GEM factory within 30 days from request the new parts will be invoiced to the customer.
Pag.6 Pictograms Safety instructions are highlighted with warning triangles and are depicted according to the degree of hazard as follows. Danger! General hazardous area. Death or severe injury or significant property damage can occur if the corresponding precautions are not taken! Warning! Risk of moderate or minor injury if the corresponding precautions are not taken! Caution!
Pag.7 General safety instructions Danger! Rotation of the drive shaft induces a voltage, which is applied to the connection terminals. Danger! The elevator machine has attachment points: screwed-on eye bolts. The attachment points are designed exclusively for transporting the elevator machine including brake and traction sheave. Do not lift other loads such as bolted on components, ropes lying on top, etc.
Pag.8 WARNING: A VOLTAGE >2.5Vdc WILL DESTROY THE THERMISTORS!! Operator’s obligation of diligence The elevator machine has been designed and built after consideration of a risk analysis and after careful selection of the harmonised standards to be complied with as well as other technical specifica- tions.
3 Product overview Operational area The GEM GLSxx is designed as a gearless elevator machine for traction sheave rope elevators. Owing to its very compact design, theGLSxx is suitable also for machine-roomless elevators. The type-tested brake can be used as a: •...
Transport • GEM GLSxx elevator machine are packed by the manufacturer for the types of transport and storage agreed upon. Position of attachment points Transport the elevator machine either in the original packing (pallet or cage) using a proper forklift or at the attachment points using a suitable lifting gear in such a way that the load on each eyelet must be almost vertical (packaging must be removed in this case).
Pag.11 Storage Store the elevator machine in the original packaging in a dry area protected from the weather or protect it from dirt and weather until final mounting. Extreme heat or cold must be avoided! (storage temperature -10 °C to +50 °C) High humidity which can lead to condensation must be avoided.
Do not carry out any activities during operation. Only perform maintenance work on the drive when stopped. Rope guard GEM GLSxx The elevator machine is on the right and left fitted with rope protections (1). A rope retainer (2) is optionally available.
Pag.13 4.5.1 Rope protections attachment on GEM GLSxx Adjustability on both sides ± 5°. Normal wrap angles 175° - 185°. Protection base on GLSxx Frontal protection on GLSxx The protection base (1) is attached to the machine housing with two auto-locking hexagon head screws M6 x 14 –...
Pag.14 5 Electrical installation Safety precautions Work on electric components may only be carried out by trained electricians or by persons instructed in electricity under the supervision of an electrician in accordance with electrical engineering regula- tions. Electrical equipment must be checked regularly: loose connections are to be re-tightened and damaged cables must be replaced immediately.
Pag.15 5.3.4 Connection Danger! The motor cable must be connected to the correct phase of the frequency inverter and the elevator machine: U -> U / V -> V / W -> W (or L1 -> U / L2 -> V / L3 -> W or R -> U / S -> V / T -> W). If the actual direction of travel does not correspond to the selected direction, the turning direction of the elevator machine must be changed in the frequency inverter configuration.
Pag.16 Connection requirements with optional forced ventilation 1. Loosen both recessed cheese head screws M6 (1) 2. The cover plate (2) can now be removed 3. Connect the GLSxx according to the connection diagram (attached under the cover plate) Cables must be passed through the rubber rings (3) and clamped with the cable clamps (4) Ground and shield of motor cable must be plugged in the yellow/green terminal U,V,W sequence must be respected...
Pag.17 Absolute encoder Caution! Never touch the connection contacts on the position absolute encoder or on the cable! The electronics can be destroyed by static electricity. You must discharge your own body before touching. This can be done, for example, by touching a conductive, earthed object (e.g.
Pag.18 Note: Removal of the absolute encoder is only possible from the rear. Due to the extremely low failure rate of the absolute encoder, this does not represent a problem. Nevertheless a suitable free space must be maintained behind the machine in order to permit free access for maintenance. Never joint together the encoder cable and the motor cable or pass together through the same pipe.
Pag.19 5.5.1 Application • The brakes are intended for static applications as holding brakes. Dynamic braking must be restricted to emergency and inspection braking. No wear occurs on a holding brake. This means that the brake is maintenance free, and only the air gap has to be checked as described in the “Maintenance and repair - Inspection intervals - Checking the air gap”...
Pag.20 5.5.5 Connection • The brake has two independent coils that can be powered through the FR1+,FR1-,FR2+,FR2- terminals • The brake must be supplied with 207Vdc (no overexcitation is required) and the connection of the two coils must be in parallel •...
Pag.21 Forced cooling GLSxx forced ventilation (optional): the forced ventilation is optional and can be added afterwards. Forced ventilation is suggested only in case of intense lift traffic (offices, hospitals,…), high lift room temperatures, high cabin travel (>50m). 5.6.1 Technical data Voltage 220 - 240...
Pag.22 The measured currents should correspond as closely as possible. The difference between the measured currents should not show a variation of more than 10 %. Half load test with release of the brake only The shorting circuit, if installed, should be disabled for the duration of the half load test. With a half load and the brake released, the car may not move.
Pag.23 Emergency evacuation Attention! The measures for emergency evacuation described below may only be performed by instructed persons for maintenance of the elevator or qualified personnel of elevator companies. 6.5.1 Emergency evacuation by release of the brakes In case of power failure or failure of the recovery control, emergency rescue is only possible by releasing the brakes.
Brake control wrong / defective Check brake control Brake coil defective Replace brake (special tool required. Contact customer service of GEM S.r.l.) Brake worn out Replace the brake rotor (Special tool re- quired! Contact the customer service of GEM S.r.l).
Pag.25 the maximum air gap has been reached. The brake wear has to be checked with the brake closed, therefore: Make sure that all moving parts have stopped, secure them mechanically if required! Make sure that the elevator can not be moved from any other person than the one who does the check! Inspection intervals ...
Spare parts and retrofit parts Spare parts and accessories not supplied by GEM S.r.l. can’t be installed on GEM machines. Will assume no liability or guarantee for damages caused by spare parts that are not approved by GEM. Available parts for motor version GLSxx 6 ...
Pag.27 Mounting-Dismounting the traction sheave Mounting the traction sheave Clean carefully with solvent the internal conic housing and the feather key housing in the traction sheave and the conic end of the shaft and its feather key. Install the traction sheave onto the shaft end centering the feather key with its housing. Mount the steel washer with the smaller diameter towards the external side and fix with the three hexagon screws M12x40 (torque 85Nm) with their grower elastic rings.
Pag.30 11.1.3 Brake EVO-01 EVO-02 Brake type Brake torque [Nm] 2x250 max 2x500 max Operating voltage [V DC] Rated output power 2x62 2x85 Electrical protection rating IP 54 IP 54 Mechanical protection rating IP 21 IP 21 11.1.3.1 Micro switch Maximum current [A / V 0.1A...
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