ZPA Pecky, a.s. MODACT MOKPED 100 Ex, Инструкция по установке и эксплуатации

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The preset temperature range limit values of the actuators (-40 °C and +70 °C) can be changed according to
customer needs. Exceeding these limits close the fault contact READY and an error signal occurs.
Local control
Local control serves for controlling the actuator from the site of its installation. For DMS2 ED electronic system includes
two change-over switches: one with positions “Remote control – Off - Local control“, the other “Open – Stop – Close“.
The first change-over switch can be built-in as two-pole or four-pole. The change-over switches are installed in
a terminal-board box and the control elements on the lid of this terminal-board box.
If the actuator is equipped with DMS electronic system local control consists of 3 buttons – “Open“, “Stop“, “Close“
and rotary switch “Local, Remote, Off“.
6. ELECTRIC PARAMETERS
Terminal board of the actuator
Electrical equipment consists of electronics power supply circuit and motor control circuit. Connection of the dis-
tribution network is performed by means of the terminal board located on the control module. The terminal block is
designed that the total connection does not need any other terminals.
This terminal board uses screw terminals allowing to connect conductors with a maximum cross-section of
2,5 mm
2
.
Actuator internal wiring
The internal wiring diagrams of the MODACT MOKPED Ex actuators with terminal designation are shown in this
Mounting and operating instructions.
Each actuator is provided with its internal wiring diagram on the inner side of the actuator. The terminals are
marked on a self-adhesive label attached to a carrying strip under the terminal block.
Isolation resistance
Isolation resistance of electric control circuits against the frame and against each other is min. 20 M
Ω
.
Isolation resistance of the electric motor is min. 1,9 M
Ω
. After a dump test, isolation resistance of control circuits
is min. 2 M
Ω
.
Electric strength of electric circuits isolation
MOKPED Ex actuator with electronic system are tested:
circuits of anti-condensation heater
1500 V 50 Hz
circuits of electric motor 1000 V +2.Ujm 50 Hz, at least 1500 V
circuits of outgoing and control signal circuits 50 V DC
Deviations of basic parameters
Tripping torque ±15 % of max. value of range
Adjusting time +10 % till -15 % of rated value (idle run)
Protection
The actuators are fitted with one internal and one external protective terminals ensuring protection against electric
shock according to ČSN 33 2000-4-41. One protective terminal is also fitted to the electric motor. The protective terminals
are labelled with a mark according to ČSN EN 60417-1a2
(013760).
7. DESCRIPTION
The entire actuator is designed as explosion-proof closure “d“ marked Ex d IICT6 Gb or Ex d IIB T6 Gb for
explosive gaseous atmosphere and Ex tb IIIC T80°C Db IP67 for areas with flammable dust.
If the actuator is equipped with local control unit, the local control unit makes another explosion-proof closure “d“ .
Both explosion-proof closures are in such case separated by a bushing.