17
ENGLISH
ENGLISH
connections from the 844 MPS electronic control unit to the chosen
accessories.
Always route the power supply cables separately from the control
and safety cables (keyswitch, receiver, photocells, etc.). Use separate
conduits to avoid any interference.
If the 844 MPSR electronic control unit is installed inside the gear
motor, remove the 844 INTERFACE card, which serves only if the
control unit is installed in a separate box.
5.1.1. 844MPSR ELECTRONIC CONTROL UNIT
TABLE 2
TECHNICAL CHARACTERISTICS OF 844MPSR
Power supply
230V~ (+6 -10 %) 50Hz
Motor max. load
650 W
Accessories power supply
24Vdc/24V~
Accessories max. load
500 mA
Warning light power supply
24V~ (5W max)
Temperature range
- 20°C + 55°C
Fuses
transformer primary - motor - accessories
Quick connectors
- for decoding cards or RP receivers-
- capacitor - limit switch -
Inputs
OPEN/STOP/CLOSING SAFETY/LIMIT-SWITCH
Outputs
warning light - flashing light
motor - 24Vdc/24V~power supply for accessories
pause time (5-10-15-30-60-120-180 sec.)
Logic programming
(automatic A1/S1/S2 - semiautomatic E1)
pre-flashing
Motor braking
Adjustable by trimmer
Safety timing
255 sec.
5. 1. 2.
844MPS LAY-OUT
TABLE 3
844MPS Control unit components
F1
Fast-acting fuse F1 5x20 F5A/250V (motor )
F2
Time delay fuse F2 5x20 T1.6A/250V (accessories)
F3
Time delay fuse F3 5x20 T250mA/250V (transformer)
P1
RESET button
TR1
Braking adjustment trimmer
DS1
Programming dipswitches
Led
Input status indicator LEDs
J1
Quick connector for decoding cards/RP receiver
J2
Low voltage inputs/accessories terminal block
J3
Quick connector for limit switch (LH closure)
J4
Quick connector for limit switch (RH closure)
J5
Motor output terminal block
J6
Quick connector for capacitor
J7
Flasher unit output terminal block (230V~ max 60W)
J8
Line input terminal block
Fig. 19
4.4.2.SCREW-ON STEEL RACK (Fig. 15)
1) Slide the leaf manually to the closed
position.
2) Rest the first rack element level on
the pinion and insert the spacer in
the upper part of the slot between
the rack and the gate.
3) Mark the point to be drilled on the
gate. Drill a 6.5 mm diameter hole
and thread using 8 mm screw taps.
Tighten the bolt.
4) Slide the gate manually making sure
that the rack rests on the pinion and repeat the operations of
point 3.
5) Place another rack element next to the first and use a section of
rack to set the teeth of the two elements in phase as shown in Fig.
17.
6) Slide the gate manually and secure the rack element in the
same manner as the first element. Proceed in this manner until
the rack covers the entire length of the gate.
Fig. 15
Fig. 16
Fig. 17
Notes on the installation of the rack
•
Check that none of the rack elements come off the pinion during
the movement of the gate.
•
Do not weld the rack elements either to the spacers or to each
other.
•
After installing the rack, lower the position of the gear motor by
adjusting the feet (Fig. 18) by about 1.5
mm to ensure correct meshing with the
pinion.
•
Check manually that the gate reaches
the mechanical travel limits correctly
and that it does not encounter friction
during its travel.
•
Do not use grease or other lubricants
between the pinion and the rack.
5. START-UP
5.1. CONNECTION TO ELECTRONIC CONTROL UNIT 844
MPSR
Ü
Always disconnect the electrical power supply before carrying
out any operations on the control unit (connections, program-
ming, maintenance).
Warning: On disconnecting connector J6, high voltages may be
present on the capacitor output.
Observe points 10, 11, 12, 13 and 14 in the GENERAL SAFETY
INSTRUCTIONS.
As shown in Fig. 3, lay the conduits and make the electrical
Fig. 18
1.5
P1
RESET
TR1
BRAKE
F2
F1
F3
J7
J8
J6
J5
J4
J3
J2
CH-DX
CH-SX
J1
DS1
RL1
RL2
IC1
1 2 3 4 5 6 7 8 9
844MPSR
TR1
P1
F2
J1
DS1
F1
F3
Led
J2
J5
J7
J3
J4
J6
J8
