Parameters
122 M-Max Series Adjustable Frequency Drive MN04020003E—October 2013 www.eaton.com
Second Parameter Set, continued
PNU ID
Access
RUN Value/Range Description
Factory Setting
(P1.3)
P14.11 1355 X — V/Hz characteristic curve (2PS) 0
(See “P11.1” on Page 107)
0 Linear
1 Squared
2 Configurable
P14.12 1354 X — Torque increase (2PS) 0
0 Deactivated
1 Enabled
Automatic increase of the output voltage (Boost) with an
increased load and low speed (for example, heavy starting duty)
Caution: A high torque at low speed leads to a high thermal
load on the motor
Note: If temperatures are too high, the motor should be fitted
with a fan
P14.13 1353 X — Motor temperature protection (2PS) 2
The motor temperature protection is designed to protect the
motor from overheating. It is based on a temperature algorithm
and uses the motor current (P14.1) to determine the motor load
(see “Motor Heat Protection (P8.6–P8.9)” on Page 92)
0 Deactivated
1 Alarm (AL16)
2 Fault (F… 16), stop function according to P6.8
P14.14 1469 X — Motor ambient temperature (2PS) 40
–20° to 100°C —
P14.15 1470 X — Motor cooling factor at zero frequency (2PS) 40.0
0.0–150% The cooling factor of the motor at zero frequency defines the
ratio for cooling the motor at the rated frequency with the rated
operational current without an external fan (see figure on
Page 88)
P14.16 1471 X — Motor thermal time constant (2PS) 45
1–200 min The temperature time constant determines the time-span in
which the heat calculation model achieves 63% of its end value.
It depends on the design of the motor and is different from
manufacturer to manufacturer. The larger the motor design, the
greater the time constant
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