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Mitsubishi Electric E Series Data Book page 85

Air cooled chilling unit
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5. Wiring Design
 When the water temperature setting input signal type is 0-10 V
• External analog input signal of 1 V: Preset temp. A
• External analog input signal of 9 V: Preset temp. B
• External analog input signal of between 1 and 9 V: the preset temperature will be linearly interpolated.
Preset temp B
Preset temp A
 When the water temperature setting input signal type is 1-5 V
• External analog input signal of 1.5 V: Preset temp. A
• External analog input signal of 4.5 V: Preset temp. B
• External analog input signal of between 1.5 and 4.5 V: the preset temperature will be linearly interpolated.
Preset temp B
Preset temp A
 When the water temperature setting input signal type is 2-10 V
• External analog input signal of 3 V: Preset temp. A
• External analog input signal of 9 V: Preset temp. B
• External analog input signal of between 3 and 9 V: the preset temperature will be linearly interpolated.
Preset temp B
Preset temp A
(6) Setting the capacity control ratio using analog signal input
When dip switch SW2-7 is set to ON (Enable external input), SW2-8 is set to ON and SW2-9 is set to OFF, the capacity
control ratio varies with the type of analog input signal.
 When the water temperature setting input signal type is 4-20 mA
• External analog input signal of 6 mA: 0%
• External analog input signal of 18 mA: 100%
• External analog input signal of between 6 and 18 mA: the percent will be linearly interpolated.
Load ratio
100%
*%
0%
MEES19K040
0 V 1 V
9 V 10 V
1 V 1.5 V
4.5 V 5 V
2 V 3 V
9 V 10 V
4 mA 6 mA
18 mA 20 mA Input current
Input voltage
Input voltage
Input voltage
84

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