HYTROL E24MC Serie Manual De Instalación Y Mantenimiento página 9

ELECTRICAL SPECIFICATIONS
• E24MC Motor Card Requirements
Power Requirements
• Power In
o 24 .0 VDC nominal @ 3 A maximum
 Limited to 1 .5 A when DIP switch 4 is OFF
 Normal operation from 22 .0 – 28 .0 VDC
 Will allow operation above 28 .0 VDC but control will get hotter .
 Will allow operation below 22 .0 VDC but full speed will be
unattainable .
o 29 .0 + 0 .2 VDC over-voltage detection (unit will cease normal
operation)
o 19 .0 + 0 .2 VDC under-voltage detection (unit will cease normal
operation)
Polarity protection is provided
o
 Note that the control's ground does not attach to the metal
chassis; doing so assures a solid ground but then if the power
supply is reversed it's positive output
o Fuse to only be replaced with a 5A Slo-Blo Littlefuse 0454005 or
equivalent .
PNP Selectable Inputs – can be PNP input (see page 14)
•
o PNP Input Signal Levels (When switch 2 is ON)
 Active when pulled up above 18 .0 VDC
 Need to be able to source 3 mA
o Two input signals
 Motor Run
 Motor Reverse
• Analog Speed Input
 Allow the speed to be controlled from a single point
 Voltage range: 0-10 VDC
 Minimum impedance presented to input: 5K
PNP Output
•
o Signal Levels
 Sources current when active
 Maximum current for this unprotected output is 50mA .
 A 150Ω series resistor helps the PNP output limit current draw
for most situations; voltage out is thus lower as current draw
increases .
 Voltage dependent on input power and current draw .
o One output signal (See Page 8)
 Motor Running
 Environmental Requirements
• Temperature
o The unit shall operate within specified limits over the range of -20
to 40 °C (-4 to 104 °F) .
o The unit can be stored in the range of -40 to 85 °C (-40 to 185 °F) .
Humidity
•
o The unit shall operate within specified limits in relative humidity in
the range of 20 to 90% (non-condensing) .
o The unit can be stored in the range of 5 to 95% (non-condensing) .
Safety – Unintended Use Considerations
Installer
•
o This product is intended for installation by qualified personnel only;
although of relatively low voltage there are dangerous levels of
current controlled on the board that are not protected from mis-
placed fingers .
 Note that the cover makes it difficult to touch any power other
than the fuse .
 A tool will be required to tweak the pot or move the DIP
switches; a plastic-tip screwdriver is recommended .
Should the on-board fuse require replacement always use only
o
that detailed in this specification .
User
•
o Product shall be located away from the user such that touching of
the control is not possible .
Should the on-board fuse require replacement always use only
o
that detailed in this spec .
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