Lenze MCH Series User Manual

Page 61

13435744_EDBMH01_v13

HAND SOURCE

This parameter selects the speed reference source that the drive will follow when it is in

HAND mode. The following options are possible:
KEYPAD The

and q keys control the drive speed.

0-10 VDC

The drive will follow a 0-10 VDC signal wired between TB-5A (+)

and TB-2 (-).

4-20 MA

The drive will follow a 4-20 mA signal wired between TB-5B (+) and

TB-2 (-).

PRESET #1 - #4

The drive will run at a programmable preset speed. Refer to

Parameters 1-4.

MOP

The drive speed is controlled by two contacts (one to increase the

speed and the other to decrease the speed). Program TB-13A

(Parameter 47) to DECREASE FREQ, and TB-13B (Parameter 48)

to INCREASE FREQ. Closing TB-13A to TB-2 will decrease the

speed, and closing TB-13B to TB-2 will increase the speed. Refer

to Section 14.2.4.

SELECTED

The drive speed will be determined by whatever speed reference

is selected using the TB-13 terminals. Refer to Parameters 47, 48,

and 49.

30 CONTROL
This parameter affects how the H/O/A modes are selected, and also determines the

level of serial control. The following settings are possible:
NORMAL

H/O/A is selected from the keypad or terminal strip. The serial

link can be used for monitoring only; no serial start/stop or speed

control.

NORM NO HAND

Same as NORMAL except HAND mode is disabled. AUTO mode

can be selected normally from the keypad or terminal strip.

SERIAL SPEED

H/O/A is selected from the keypad or terminal strip. The serial

link can control the drive speed or PID setpoint, but only in

AUTO mode. In HAND and OFF modes, serial speed control is

disabled. No serial start/stop control.

SPD

HAND

Same as SERIAL SPEED except HAND mode is disabled.

AUTO mode can be selected normally from the keypad or

terminal strip.

SERIAL AUTO

H/O/A is selected from the keypad or terminal strip. In AUTO

mode, only the serial link can start the drive. The serial link can

control the drive speed or PID setpoint in AUTO mode only.

S AUTO / NO HND

Same as SERIAL AUTO except HAND mode is disabled. AUTO

mode can be selected normally from the keypad or terminal

strip.