SEW MOVITRAC MC07B0037-2A3-4-00, System Manual

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System Manual V2 – MOVITRAC® B
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9
Starting up pumps and fans of non-SEW motors
Startup
9.11.3 Settings for process data word
If you do not change the PO2 process data word, you can also use the MBG11B. In this
case, the conversion is 1 % = 32 rpm. The results from the relationship 4000 hex =
100 % speed. Refer to the following tables for the respective value.
PO2 = Speed (standard parameter setting P871 = speed)
PA2 = Speed [%] (changed parameter setting P871 = speed [%])
9.12 Starting up pumps and fans of non-SEW motors
Due to the physical conditions of the application, it is recommended that you adjust the
following parameters when operating pumps and fans, and non-SEW motors:
• Operation of the drive in the V/F characteristic curve operating mode; Parameter 700
/ 701 = V/f characteristic curve (21)
• Disable automatic adjustment; Parameter 320 / 330 = Off (0)
• Set IxR adjustment to 0; Parameter 322 / 332 = 0
• Set boost to 0; Parameter 321 / 331 = 0
• Minimize slip compensation and set to 0 if required; Parameter 324 / 334
• Increase ramp times; Parameters 130 / 140 and 131 / 141
Deactivating the slip compensation might require that you specify a higher setpoint
speed to achieve the required air/volume flow.
Percent Hex Decimal Speed
1 % A4 hex 164 dec 32
10 % 666 hex 1638 dec 328
25 % 1000 hex 4096 dec 819.2
33 % 1555 hex 5461 dec 1092.3
50 % 2000 hex 8192 dec 1638.4
75 % 3000 hex 12288 dec 2457.6
100 % 4000 hex 16384 dec 3276.8
Percent Hex Decimal Speed
1 % A4 hex 164 dec n_max / 100
10 % 666 hex 1638 dec n_max / 10
25 % 1000 hex 4096 dec n_max / 4
33 % 1555 hex 5461 dec n_max / 3
50 % 2000 hex 8192 dec n_max / 2
75 % 3000 hex 12288 dec n_max / 1.333
100 % 4000 hex 16384 dec n_max
0 0
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