Emergency Reverse Parameters; Emergency Reverse Current Limit; Emergency Reverse Check; Emergency Reverse Direction Interlock - Curtis Instruments MultiMode 1243 Generation 2 Manual

Emergency Reverse Parameters

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C A U T I O N
Curtis 1243 2 Manual
GEN
3 — PROGRAMMABLE PARAMETERS:
momentarily cycled during operation. However, it is important to bear in mind
that the same sequencing delay also delays the initiation of interlock braking (see
Figure 14, page 29).
The sequencing delay can be programmed from 0.0 to 3.0 seconds, with
0.0 corresponding to no delay.
The polarity of the and
S1
reverse feature. The forward and reverse switches and the
be configured so that the vehicle drives away from the operator when the emergency
reverse button is pressed.
EMR REV C/L
When emergency reverse is activated, the emergency reverse current limit
parameter defines the maximum braking current during deceleration and the
maximum drive current after the vehicle switches direction. The emergency
reverse current limit is adjustable from 50 amps up to the controller's full rated
braking current. (The full rated braking current depends on the controller
model; see specifications in Table D-1).
EMR REV CHECK
The emergency reverse check parameter is applicable only when the emergency
reverse feature is being used in the application. If emergency reverse is not being
used, this parameter should be set to Off.
When enabled (programmed On), the emergency reverse check tests for
continuity from the emergency reverse check output (Pin 10) to the emergency
reverse input (Pin 13). Therefore, the emergency reverse wiring should be
connected as closely as possible to the controller side of the emergency reverse
switch. The recommended wiring is shown in the standard wiring diagram,
Figure 3 (page 7).
EMR DIR INTR
In applications that use the emergency reverse feature, the emergency reverse
direction interlock parameter defines the requirements for resuming normal
operation after using emergency reverse. After emergency reverse has been used,
the controller sets the output drive to zero regardless of whether a direction or
throttle is being requested. With the emergency reverse direction interlock
parameter set to On, the operator can either open both direction switches or
cycle the interlock switch to enable normal operation. With the emergency
reverse direction interlock parameter set to Off, the only way for the operator
to resume normal operation is by cycling the interlock switch.
connections will affect the operation of the emergency
S2
Emergency Reverse Parameters
and connections must
S1 S2
43