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10 | WECM / Emerald eZA Manual
6.3. PRODUCT STANDARD FEATURES AND CONTROL REFERENCE
The product has characteristics of reference signals and these can be found in the Table 6 and Figure 7:
Signal
Detail
Signal reference
DC Source
10 VDC
Voltage: 10 VDC, Current: 10 mA max
24 VDC
Voltage: 24 VDC, Current: 350 mA max
Speed reference
Speed = zero
Frequency [Hz]: zero (4,8 V)
Speed > zero
Frequency [Hz]: speed (rpm) x 0,6015
Serial communication
RS485
See item 6.7
Alarm relay
Normally Open
Voltage: 250 VAC, 220 VDC – max
Current: 2 A max
Normally Closed
Table 6 - Product standard features and control reference
Figure 7 - Product standard features and control reference
6.4. HOW TO ADJUST THE MAXIMUM AND MINIMUM SPEED VALUE
6.4.1. MAXIMUM SPEED
The maximum speed value for the remote speed adjust signals can be changed:
Using the optional WEG EC Motor Speed Controller (see item 6.5 ).
Using the product local tact buttons (only up to the maximum speed set by WEG EC Motor Speed Controller).
Select local speed reference in the DIP switch (see item 6.2).
Using the tact buttons, adjust the speed to the value desired to be the maximum.
Select remote speed reference in the DIP switch.
When available, using the RS485 serial communication (see item 6.7);
NOTE!
g
The standard factory preset value for the maximum speed is the rated speed informed in the product nameplate;
g
The maximum speed must be equal or lower than the rated speed.
Consult WEG about different factory maximum speed values.
6.4.2. MINIMUM SPEED
The standard factory preset value for the minimum speed is 200 rpm for the rated 1500 rpm and 1800 rpm product
and 500 rpm for the rated 3000 rpm product.
Consult WEG about different factory minimum speed values.
