Chapter 12 Description of Parameter SettingsMS300 (High Speed Model)
12-06-21
Level 2 = 06-57
Setting range: 0.000~10.000V
Factory setting: 7.000V
Level 1 = 06-56
Setting range: 0.000~10.000V
Factory setting: 5.000V
Frequency
Command
When input voltage of PT100 reaches level 1,
the output frequency goes back to Pr. 06-58.
after the drive passes the delay time set at Pr. 06-59,
When input voltage of PT100 reaches level 2,
the drive executes by the setting of Pr. 06-29
to prevent the motor from overheating.
Pr. 06-59 Delay time
When Pr. 06-58 = 0.00 Hz, PT100 function is disabled.
Example:
When using PT100, if motor temperature is higher than 135 °C (275 °F), the drive will start to
count the delay time of auto deceleration (Pr. 06-59). The drive will decrease motor frequency to
the setting of Pr. 06-58 when
reaches count value. The drive will operate at the frequency set by
Pr. 06-58 till the motor temperature is lower than 135 °C (275 °F). If motor temperature is higher
than 150°C (302 °F), the drive will decelerate to stop automatically and display warning “OH3”.
Set up process:
1. Switch AFM to 0-20 mA on control board.
2. Wiring:
Connect external terminal AFM to “+”
Connect external terminal ACM to “-“
Connect AFM and AVI to “short-circuit”
3. Pr. 03-00 = 11, Pr. 03-20 = 23, Pr. 03-32 = 45 % (9 mA)
4. Refer to RTD temperature and resistance comparison table
Temperature = 135 °C, resistance = 151.71 , input current: 9 mA, voltage: about 1.37 VDC
Temperature = 150°C, resistance = 157.33 , input current: 9 mA, voltage: about 1.42 VDC
5. When RTD temperature > 135 °C, the drive will decelerate to specified operation frequency
automatically. Pr. 06-56 = 1.37 and Pr. 06-58 = 10 Hz. (When Pr. 06-58 = 0, specified
operation frequency is disabled)
6. When RTD temperature > 150 °C, the drive will output fault and decelerate to stop displaying
warning “OH3” simultaneously. Pr. 06-57 = 1.42 and Pr. 06-29 = 1 (warning and decelerate to
stop).
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