16 • Technical Data
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3.5.2 Input Terminal 7 - Energy Save/Slow Speed/Reset
Input from a N.O. contact - selection between above functions is made from the keypad (refer to section
7.7.8 page 83) or through the communication (Modbus or Profibus).
When ENERGY SAVE
function is selected - connect terminal 7 to control input voltage by a jumper for
automatic operation, upon load decrease.
When connected through a N.O. contact, closing the contact operates Energy Save.
When SLOW SPEED
function is selected - connect control input voltage to terminal 7 before starting. When
start command is initiated motor will run at 1/6 nominal speed for 30 seconds maximum. Closing terminal 7
while motor is running will not have any effect.
When RESET
function is selected - connect terminal 7 to control input voltage (use a N.O. momentary
contact) to reset the RVS-DN.
Refer to section
4.10 page 23 for the wiring diagram.
3.5.3 Input Terminal 8 - Dual Adjust/Reverse/Reset
Input from a N.O. contact - selection between above functions is made
from the keypad (refer to section
7.7.8 page 83) or through the communication (Modbus or Profibus).
When DUAL ADJUSTMENT
function is selected - connect terminal 8 to Control Input voltage to operate the
RVS-DN with the DUAL ADJUSTMENT characteristic. DUAL ADJUSTMENT characteristic is programmed as
explained in section
7.7.5 page 79. You can switch between the primary and DUAL ADJUSTMENT settings
before and/or during starting.
When dip switch #3 is set to on, DUAL ADJUSTMENT operates as D.ADJ.:GENERATOR PARAMETERS.
Use this mode if the normal starting process fails, i.e., SHORTED SCR or WRONG CONNECTION faults
occur and, after testing, operator is sure that SCRs, motor and motor connections are not faulty.
Refer to section
4.17 page 29 for D.ADJ.:GENERATOR PARAMETERS wiring.
Refer to section
9 page 95 for trouble shooting.
When SLOW SPEED REVERSE
function is selected - connect Control Input voltage to terminal 8 to reverse
direction. In order to operate in SLOW SPEED REVERSE, terminal 7 must be programmed as SLOW SPEED
and Control Input voltage must be connected to terminal 7 as well.
You can give the reverse command before the motor is started or during operation at SLOW SPEED.
Connecting Control Input voltage to terminal 8 before motor is started, starts the motor in reverse direction.
Connecting Control Input voltage while motor is running at SLOW SPEED stops the motor for 0.6 – 2 sec
(according to motor size) before reversing its direction.
Refer to section
4.10 page 23 for wiring diagram.
When RESET
function is selected - connect terminal 8 to Control Input voltage (use a N.O. momentary
contact) to reset the RVS-DN.
Refer to section
4.10 page 23 for the wiring diagram.
3.5.4 Output Terminals 10, 11 & 12 – Immediate/Shear Pin Relay
Programma
ble functions (refer to section
7.7.8 page 83):
IMMEDIATE
(after start signal) - when immediate is selected, the relay is energized upon the START signal.
The relay is de-energized when one of the following occurs:
• Fault
• Control Supply outage
• STOP signal
When SOFT STOP is operated - the relay is de-energized at the end of the SOFT STOP process.
The relay incorporates on and off delays of 0-3600 sec. each.
The immediate relay can be used for the following purposes:
• Release a brake of a motor
• Interlock with other systems
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