CMESA SERVO-DRIVES & MOTION CONTROL Operating Manual

RECEIVING AND HANDLING Upon delivery of the equipment, inspect the shipping containers and contents for indications of damages in curried in transit. If any of the items specified in the bill of lading are damaged, or the quantity is incorrect, do not accept them until the freight or express agent makes an appropriate notation on your freight bill or express receipt. Claims for loss or damage in shipment must not be deducted from your invoice, nor should payment be withheld pending adjustment of any such claims. Store the equipment in a clean , dry area. It is advisable to leave the equipment...

MESA Automation GmbH 1 Technical specifications for MRM Power stage Input voltage Over voltage protection Chopper frequency Form factor at nominal ratings Power stage protection Fault signaling red LED Chapter 1.1 Basis models 85 VDC (UA=60 V) 160 VDC (UA=120 V) 8 kHz (to GND) 1.01 (Rated current) short circuit ϑmax , - Îmax ;- Umax Speed controller Input command Tacho reference signal Compensation network Differential ± 10 V Ri = 20 kΩ Differential ± 5V ... ± 60 V Ri = 54 kΩ PI (D) correction with potentiometer or components Speed control range static Error Current controller Band width Compensation...

MESA Automation GmbH MESA Automation GmbH Ua: Output voltage Uccn ; Imax : max. Output current ; iNrms : rated current t : Time constant of RMS circuit A) Standard without option MRM 1208 (M 99) Mesanor Compact-DC-Drive Rated current INrms 8A B) Limit switch OPT.C and 0 V Logic (Enable and Opt.) The MRM servo modules are extremely compact PWM servo amplifiers that provide 4 quadrant speed control of any DC servo motors with Tacho or with BEMF feedback. MRM amplifiers are conceived for regulation of brush DC motors. The MSMN... power supply transforms ac voltage into dc voltage. From dc voltage...

MESA Automation GmbH Other Options are available by using MSM-OPT Sub print- please ask for more information. - external current limiting, positive and negative Output current separate (Opt.A) - Speed controlled current limiting (Opt. L) - programmable Limit-Switch (Opt. KE) - Ramp generator (Opt. B ) - Limit switch (Opt. C) Please use only the special Power supply Series MRMMN/W . Electronic (+/-15V) of the amplifier is supplied from power supply MSMN/W. Transformers with galvanic separated primary an secondary winding are used for adjustment of supply voltage to the existing net. The Transformers...

MESA Automation GmbH The adjustment of Tacho, output current, Irms is made by factory. An adjustment of an amplifier for another motor is possible In order to achieve best performance for the system motor/amplifier, optimisation of speed circuit is necessary. The following components are used: As a general rule, amplifiers driving servo motors are designed such that the continuously rated speed of the motor corresponds to an input command to the amplifier of 10 V. • apply a 10 V signal to the command input and measure the motor speed. The Tacho pot. P3 can now be adjusted until the correct maximum...

MESA Automation GmbH A) Response when correctly adjusted Demand Signal acceleration t1;t3 Motor current Speed (Tacho) Motor current Attention! mismatches Motor current oscillates Spees (Tacho) P-Gain too high adjust with P2

MESA Automation GmbH 5.4 Armature Current Measurement Armature current is measured by means of a shunt placed in series with the armature circuit. The voltage produced can be measured at the „I Monitor“ test point. 10 Volts output corresponds to the maximum current of the amplifier. Max. Output current IAmax: P4 The amplifier is capable of supplying twice is rated current for 1.5-5 seconds. Peak current will be adjusted by P4. Standard-Range: Right side: Left side: IAmax = 1 x Imax = Type-max. current IAmax = 0,03 x I max Current balance: P7 Adjustment of the internal Current measurement! Set...

MESA Automation GmbH Set value adjustment: Tacho adjustment: lntegral part C2 Standard: C2 = 0,1 pF Proportional part P2 / R 21 Standard: R21 = 82 kQ K factor is the result of P2 adjustment : Right side: K = 20 Block diagram Speed control The controller is optimised by factory do not change ! 6 Protection and fault signalling The green LED indicates the proper function of the unit. In case of a fault, a signal is given by the front red LED (H1), power stage will be disable and the „ready/drive healthy „ relay contact will be open. Reset the amplifier : supply voltage off-/-on Monitoring ground...

MESA Automation GmbH Monitoring under voltage The +/- 15 V will drop to 0V DC an disable the amplifier. Monitoring over temperature of the power stage Monitoring of the heat sink temperature up to 90 ° C or 190 ° F • It is Important that the amplifier (Rack or stand-alone) is properly earthed. If the amplifier is not earthed then if an earth fault occurs in the motor circuit the output of the amplifier will be destroyed. • Each motor must be wired separately (cable should be shielded) • Motor cable may be shielded if there is a requirement for reduced electrical noise. • Speed demand and tacho...

MESA Automation GmbH 9 Faultfinding and remedy Fault The motor will not start supply voltage missing check all fuses are good and supply voltage are present Terminal X1/Pin5 shold be connected to 0VDC (optional +24V) for power stage enable check the wiring for the armature circuit Change the polarity of the tachometer or the motor. Release the brake, if there is one; if necessary dismantle the motor and run no-load test Check the wiring of the armature circuit Turn P2 counter clockwise Increase C2 Check the shielding and check wiring check wiring Motor wiring open The motor runs at The control...

MESA Automation GmbH Attention ! All test points refer to 0VE/GND power and logic ground direct connected

MESA Automation GmbH 10.4 Technical Power supply Rack DIN 41 494 , part 1 , 1 TE = 5,08 mm or 0,2" , MSMR 84 19" Standard rack