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NOTE!
The standard maximum speed value is preset at WEG to be the highest value of
g
the speed range but, can be changed by the user (see item 6.3).
The product has speed memory when operating in local speed adjustment. The
g
last speed adjusted will be kept in memory when the input power supply is removed.
The motor will accelerate to the memorized speed when the input power supply is
reconnected.
The local controls inside the opening on the back cover are totally insulated.
g
There is no risk of shock when touch any internal part of this opening, even when the
solution is running.
ATTENTION!
After remove and reinstall, make sure that the plastic lid from the back side of the drive
cover is securely closed to guarantee the protection degree.
Remote speed adjust:
g
The speed can be adjusted by the input signals available in the control cable:
DC voltage: 2 to 10V DC [tolerance: +10%];
DC current: 4 to 20mA DC [tolerance: +10%];
Frequency duty-cycle: 10 to 95%
Voltage: 10 to 24Vpk [tolerance: -5%/+10%];
Frequency: 80Hz [tolerance: -2,5%/+2,5%];
The product will turn off if imposed signals lower than 2V DC, 4mA DC or 10%.
The speed can be adjusted using the external speed controller (see item 6.4).
Control input reference:
Signal type
Lower than 2V DC
DC voltage
a
From 2 to 10V DC
Lower than 4mA DC
DC current
From 4 to 20mA DC
Lower than 10%
Frequency
From 10 to 95%
12 | WECM / Emerald eZA Manual
Figure 6 - Product standard control switches
Condition
Table 6 - Control input reference
Resulting speed value
Zero (motor is off)
((Max
-Min
)/8)×(IS
-2)+Min
b
c
d
Zero (motor is off)
((Max
-Min
)/16)×(IS
-4)+Min
b
c
d
Zero (motor is off)
((Max
-Min
)/85)×(IS
-10)+Min
b
c
d
Conductors
1
2
Blue
Red
Black
Brown
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