R&M Materials Handling VARIABLE SPEED CONTROLS ControlMaster Select Service Manual - Manual (Page 10)

R&M Materials Handling, Inc.
4501 Gateway Boulevard
Springfield, Ohio 45502
P.: (937) 328-5100
FAX: (937) 325-5319
10/46
R&M Materials Handling, Inc. reserves the right to alter or amend the above information without notice.
2.8 Stop-limit operation
Stop-limit function is available in MS2- (stop-lim), EP2- (stop-lim), and AU-control modes. Normally these
inputs (S12 and S22) are "high" (limit switch closed, voltage present in the input). When either of these
signals goes “down” (no voltage in the input), the motion is stopped by switching the motor current off
immediately and by opening the relay contact ROD1 (mechanical brake closes).
Restart may occur only after one second. Restart is only allowed to the direction opposite to the stop-limit
switch circuit being off. If both of these inputs are off restart is not permitted. Restart may be initiated only
by a run command changing from off to on (= before restart both run commands must be off after the
one-second time has passed).
2.9 Mechanical brake control
Inverter has a brake contactor to control electromechanical disk brake of the traveling motor. When there
is no voltage present the brake is closed and also kept closed by spring force.
The brake is controlled so that during starting first the motor generates torque and after that the brake is
opened. The same applies for stopping; while the brake is being closed, the motor still generates torque.
During a direction change, the brake is kept open all the time. Inverter decelerates the motor to a stop
according to the set deceleration time when the run command is switched off, so the brake is used only
as a holding brake. This way brake wear is minimized. Only if a failure occurs or the emergency stop
button is pushed, the brake closes immediately stopping the motor.
2.10 EMC
The abbreviated "EMC" stands for the Electromagnetic Compatibility. According to the European EMC
directive "the apparatus shall be so constructed that:
• The electromagnetic disturbance it generates does not exceed a level allowing other apparatus to
operate as intended
• The apparatus has an adequate level of intrinsic immunity of electromagnetic disturbance to enable it
to operate as intended."
Declaration of conformity With the declaration of conformity the manufacturer informs that device is manufactured to fulfill
required EMC standards.
CE-mark The CE marking is a declaration by a manufacturer or importer located in the European
Economic Area that a product complies with the safety and health requirements of the directive
in question. The manufacturer demonstrates for the authorities that the product complies with
the safety requirements within the EU.
•
Immunity and emission requirements are divided in two levels in the product standard
according to the environments.
First environment means environment that
includes domestic premises and also
establishments directly connected to a low-
voltage power supply network.
PDS
Environments
Second environment means environment that
includes all establishments other than those
directly connected a low-voltage power supply
network
PDS