ZIEHL-ABEGG ECblue BASIC-MODBUS, Руководство по сборке

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5.15.2 Speci fi cation signal/torque characteristic curve
In “ Constant torque ” mode, the max. motor torque is achieved at the maximum speci fi cation, accord-
ing to the motor type (10 V / 100 % PWM). The fan reaches its maximum speed, from which the preset
characteristic curve can be derived.
Characteristic curve: Motor torque proportional to square of speci fi cation signal
M Torque
100 % Maximum torque
E1 Min.
Internal offset for analog input E1
Si Rotational speed speci fi cation signal (depending on connection version) 0...10 V, 4...20 mA, 0...100 % PWM,
0...100 MODBUS
Relations:
The torque is set proportionally do the square of the speci fi cation signal: M ~ Si
2
.
It is important to consider that a minimum torque of 12 % must be added to improve the start-up
behaviour.
Torque speci
fi
cation = 100 % x (((Si/10 V) x 0.94)
2
+0.12) [Si in V]
This means that on fans with a quadratic torque characteristic curve M ~ n
2
, the speed is effectively
proportional to the speci fi cation signal: n ~ Si.
Assembly instructions ECblue BASIC-MODBUS, ECblue BASIC Electrical installation
L-BAL-F079D-GB 2044 Index 002 Part.-No.
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