ZPA Pecky, a.s. MODACT MTNED 15, Mounting Instructions

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Optional outfit:
Feed-back signal
4 – 20 mA,
Analog module output of feed-back signal 4 – 20 mA, in version CONTROL input of control signal
0/4 – 20 mA
Position indicator LED display
Local control
Contactors or block of contact-less control
Electronic brake
Main merits:
Absolute scanning of position independent of backup power supply.
Simple setting by 4 push-buttons, computer PC or PDA.
Possibility of back-up making of set parameters on PC.
Intended for direct substitution of electromechanical components of the electric actuator.
Parameters:
Scanning of position
Contact-less, magnetic
Scanning of torque Contact-less, magnetic
Working stroke see Table 1
Torque blocking 0 – 20 s at reversing in limit positions
Input signal 0(4) – 20 mA with switched on regulator function
Local/Remote control, Local open/close
Output signal 7 x relay 250 V AC, 3 A (MO, MZ, PO, PZ, SO, SZ, READY)
Position signal 4 – 20 mA max. 500 ohm, active/passive, galvanic-isolated,
LED display
Electronic brake (optional)
Power supply of electronic 230 V AC, 50 Hz, 4 W, over-voltage category II
Realization:
Replacement of electric-
The provided relay contacts substitute position, torque and signalling micro-switches;
mechanical board current feed-back signal 4 – 20 mA can also be brought out; the actuator is controlled
by the superior control system with signals
“open” and “close”.
CONTROL The electronics covers also function of the regulator; the output shaft position is
controlled by analog input signal.
Function and setting of output relays
The output relays replace end-limit micro-switches; to some extent, function of the output relays differs
according to chosen mode of electronics or it can be selected, preferably by the setting program.
Relays MO, MZ, PO, PZ
In the version Control, the function of relay MO/MZ is same as that of motor relays.
Their operation is controlled by:
– regulation loop (deviation of required and actual position)
– active errors
Any induced active error will change over both relays to a standstill position (coils not energized). In case of errors,
the relays with a function of torque relays (in both versions DMS2 ED and DMS2 ED Control) are also controlled.
MO
torque open
(also changes-over to errors )
motor open
MZ
torque closed
(also changes-over to errors )
motor close
PO position open
torque open (also changes-over to errors) + optional
tripping in position open (parameter Tripping)
PZ position closed
torque closed (also changes-over to errors) + optional
tripping in position closed (parameter Tripping)
R
elay
DMS2 ED DMS2 ED Control