HOLLISTER-WHITNEY ROPE GRIPPER 622GA1 User manual

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HOLLISTER-WHITNEY “ROPE GRIPPER™”
Instructions for Model #622GA1, 622GA2,
(US PATENT 8,511,437)
WARNING:KEEP HANDS CLEAR OF “ROPE GRIPPER™”.
FORCES CREATED CAN CRUSH FINGERS.
Figure 1 - 622G Rope GripperTM
“ROPE GRIPPERTM” MOUNTING CHANNELS GUIDELINES
The Mounting Channel Framework supporting the “ROPE GRIPPER™” must withstand
upward and downward forces according to Table 1 (page 4) and applicable code
requirements.
The Mounting Channel Framework must be sufficiently sized to securely hold the “ROPE
GRIPPER™” and elevator while preventing any sliding. The Traction Machine must also be
prevented from sliding. See Figure 2 and Figure 3 for suggested mountings.
When adding a “ROPE GRIPPER™” to an existing installation, it may not be possible to
mount the gripper in the machine room. It is acceptable to mount the gripper horizontally or
upside down, as long as proper consideration for access is given for future gripper
maintenance and opening the gripper manually.

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Typical Mounting Arrangement for Overhead Machines
- New Installations -
Figure 2 - 622G Rope GripperTM Installed at an Angle
Figure 3 - 622G Rope GripperTM Installed Upright

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Typical Mounting Arrangement for Overhead Machines
- Existing Installations -
Figure 4 - 622G Rope GripperTM Installed at an Angle
Figure 5 - 622G Rope GripperTM Installed Upright

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INSTALLATION OF “ROPE GRIPPERTM”
Be sure security set screws are holding the rotating shaft in the LOADED (open) position as
shown in Figure 1 on page 1.
Remove both connecting arms after removing the four retaining rings and washers.
Remove movable shoe assembly.
Attach “ROPE GRIPPER™” to mounting channels with appropriate bolts per Table 1 below.
Do not fully tighten bolts yet.
MODEL #
APPROXIMATE
UP & DOWN
FORCE
MOUNTING BOLTS
(Approximate Torques) REFERENCE
62
2
G
(using inch hardware)
4
000
lbs
GRADE 5
:
1/2" UNC
@ 74 ft
-
lbs
Figure
11
622
G (using metric hardware)
17,792
N
GRADE
8.8
:
M12 @
100
N*m
Figure 11
Table 1 - Mounting Bolt Sizes and Required Torque
Note: Mounting must conform to applicable codes.
Position the “ROPE GRIPPER™” so that the stationary shoe lining barely touches the ropes
from top to bottom. Make sure “ROPE GRIPPER™” is squarely aligned, and centered side
to side as much as possible, with the ropes. Misalignment may cause uneven and/or
excessive lining wear.
Securely fasten “ROPE GRIPPER™” mounting bolts (5 bolts per side). Make sure they are
torqued correctly. See Table 1.
Double check rope alignment. Make sure the ropes touch the stationary shoe lining evenly.
Reinstall movable shoe assembly.
Reinstall connecting arms with chamfered edges facing the inside of the gripper and secure
the four retaining rings.
Remove Electrical Box cover. Install proper fitting with power and control wiring. See
Diagram 4 or 5 on page 14 or 15.
Connect terminals RG1, RG2, RG5 and RG7 to elevator control. Check control diagram for
proper connection. Connect the Earth ground to the green grounding screw located in the
electrical enclosure.
Make sure controller safety circuit is active and clear for running. Turn Operating Mode
Selector (OMS) lever to Auto Reset position. Motor may run momentarily and magnet will
energize, causing it to latch on the adjacent gear.
When the magnet is energized, loosen the two security set screws a turn or two. Confirm that
the “ROPE GRIPPER™” is being held open.
Remove the security set screws until there is complete clearance for the rotating shaft to
move up and down the cam (See Figure 7 on page 6).
NOTE: Security set screws must be completely removed when “ROPE GRIPPER™”
activates to prevent gripper failing to set and to prevent damage to the unit.
Unit is now ready for required testing and lining wear-in.

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TESTING OF “ROPE GRIPPER™”
Make sure controller safety circuit is active and clear for running. Turn OMS lever to Auto
Reset (see Figure 6). The “ROPE GRIPPER™” should be in or go to the ready, open
(LOADED) position (NOT clamping the ropes).
Turn OMS lever to Reset Release. This should trip the “ROPE GRIPPER™”, clamping the
ropes. Be sure that while clamping the ropes, the Ready Switch (see Figure 6) contacts on the
“ROPE GRIPPER™” stop or prevent power from being applied to the motor and machine
brake.
Turn OMS lever to Auto Reset. “ROPE GRIPPER™ should reload (re-open).
Figure 6 - Gearbox of 622G Rope GripperTM
“ROPE GRIPPER™” LINING WEAR-IN
A line has been marked on the side wall of the gripper to aid in the Wear-In process. Note
that at this point in the procedure, this line is well above the Connecting Arm and will be met or
covered by the Connecting Arm during the Wear-In process (see Figure 1 for locations of
Connecting Arm and Wear-In Line).
Make sure OMS lever is on Auto Reset.
Run the car at the slow or inspect speed. Keeping hands clear of all equipment use caution to
wipe down the ropes to remove any dirt and/or excess oil and grease from top to bottom.
Jump terminals RG5 to RG7, preferably at the controller, and run the empty car in slow
speed in the direction that the machine will pull the ropes thru the “ROPE GRIPPER™”
(typically DOWN). When the car is up to speed, turn the lever to Reset Release. The
“ROPE GRIPPER™” will clamp the ropes with a light pressure and ropes will begin to wear
grooves in the linings.
Auto
Reset
Reset
Release
Manual
Reset

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Figure 7 - Cam Profile of 622G Rope GripperTM
As the linings wear in, the rotating shaft will move up the cam slot and around the corner of
the cam noted above (Figure 7), and the connecting arms (see Figure 1) will move up the side
wall and begin to match or line up with the wear-in line marked on the side wall.
Note that it may take several car runs to complete lining wear-in.
Once the rotating shaft has turned the corner and the wear-in line is matched or covered, stop
the car and REMOVE THE JUMPER FROM RG5TO RG7. Failure to remove the jumper will
cause unsafe conditions.
If the lining wear-in is not completed after the grooves in the linings have reached
approximately 1/16” (1.5 mm) deep, spacer shims (see Figure 8 below) can be moved from
between the shaft support blocks and moveable shoe to the outside of the support block to
allow the rotating shaft to just turn the corner and move up the cam to near the wear-in line.
Refer to Table 2 on page 7 for initial spacer and shim set-up. Note: Before changing
spacers, install security set screws to prevent unintended “ROPE GRIPPER™”
activation, which could lead to severe personal injury and/or damage to the unit.
Figure 8 - Movable Shoe Assembly of 622G Rope GripperTM

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Rope Size
# of 3 mm
# of 1.5 mm # of 0.8 mm
# of 3 mm
# of 1.5 mm # of 0.8 mm
mm Inches mm Shims on Rope Side
Between Block &
Shoe
Shims on Outside (back)
of Block
6 6.00 2 2 1 0 1 0
1/4 6.35 2 2 0 0 1 1
7 7.00 2 1 1 0 2 0
5/16 7.94 2 1 0 0 2 1
8 8.00 2 1 0 0 2 1
9 9.00 2 0 1 0 3 0
3/8 9.53 2 0 0 0 3 1
10 10.00 1 1 1 1 2 0
11 11.00 1 1 0 1 2 1
7/16 11.11 1 1 0 1 2 1
12 12.00 1 0 1 1 3 0
1/2 12.70 1 0 0 1 3 1
13 13.00 0 1 1 2 2 0
14 14.00 0 1 0 2 2 1
9/16 14.29 0 1 0 2 2 1
15 15.00 0 0 1 2 3 0
5/8 15.88 0 0 0 2 3 1
16 16.00 0 0 0 2 3 1
Table 2 - Recommended Shim Arrangement for Different Rope Sizes
LINING REPLACEMENT or SHIM ADJUSTMENT
The linings will wear, especially after multiple high-speed stops. When clamping, the
rotating shaft will move towards the upper end of the cam as the linings wear. Near the end
of the cam, the excessive wear switch (see Figure 6 on page 5) will open and the “ROPE
GRIPPER™” will not automatically reopen (reload).
In this case you must inspect the linings, and decide whether the spacer shims should be
adjusted, or the linings should be replaced. This will depend on whether the grooves in the
linings are more or less than 3/16” (4.75mm) deep. To inspect linings for wear, first reopen
the “ROPE GRIPPER™” using Method 1 or 2 described below.
1. Turn OMS lever to Reset Release. On PC Board, move jumper J5 to J3. Turn OMS lever
to Auto Reset; gripper will reload electrically. Once in the open position, install the
security set screws so they touch the rotating shaft. Return jumper on J3 to J5. Or;
2.
oTurn OMS lever to Reset Release.
oNow turn the lever to Manual Reset while simultaneously pushing down the spring
plunger. (Note: If you feel interference while trying to push the lever to the manual reset
position, it may be because the pawl is interfering with the hub gear teeth (see Figure 10
on page 9). Slightly turn the hub gear hex from outside to the right or left and try again).

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oUse 8mm socket wrench (not provided) on either of the hex shaft ends in side wall 1
and turn them in their designated direction (bevel hex in counter clockwise direction
and hub gear in clockwise direction- see Figure 9). IMPORTANT: Use wrench to
open gripper only as far as is necessary to install security set screws. Opening
gripper further with socket wrench will damage gripper.
oOnce in the open position, insert the security set screws so they touch the rotating
shaft.
Note: Before changing shoes or spacers, install security set screws to prevent unintended
“ROPE GRIPPER™” activation, leading to severe personal injury and/or damage to the
unit.
Figure 9 - Gearbox (Side Wall 1) of 622G Rope GripperTM

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Figure 10 - Gearbox of 622G Rope GripperTM
If lining wear is excessive, greater than 3/16” (4.75 mm), linings should be replaced.
Remove both connecting arms by removing all four retaining rings and washers. Remove
moveable shoe assembly. Remove screw from top of each lining assembly and remove
linings by unhooking them at the bottom. It may be necessary to loosen 3 mounting bolts per
side to tip gripper to allow access to stationary shoe. Refer to Table 2 for initial spacer and
shim set-up to use with new linings. When linings have been replaced, follow the
INSTALLATION OF “ROPE GRIPPER™” procedure and the LINING WEAR-IN
procedure on pages 4 to 6.
If lining wear is not excessive, less than 3/16” (4.75 mm), spacer shims (see Figure 8) can
be moved from the back side of the shaft support blocks to between the shaft support blocks
and moveable shoe. Loosen the bolts that hold the blocks to the movable shoe, move the
spacer shims to under the blocks and reinstall and tighten bolts. Addition of shims between
the block and the shoe will lower the position of the rotating shaft toward the bottom end of
the cam when clamping.
When adjustment/replacement is complete, turn OMS lever to Auto Reset and carefully
remove the security set screws, being sure the rotating shaft doesn't move. Follow the
procedures described earlier to ensure that the rotating shaft is around the corner at the
bottom of the cam (and connecting arm position matches or covers the wear-in line marked
on the side wall) when gripping the ropes.
TESTING ALL CIRCUITS
The following three tests should be made while the car is running in slow speed in both the up
and down directions.
During each test the “ROPE GRIPPER™” should:
A. Grab the Ropes,
B. Stop the car, and
C. Open the control safety circuits disconnecting power to the motor and
machine brake.

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1) Turn the “ROPE GRIPPER™” OMS lever to Reset Release. Observe A, B, and C above.
2) With the car in the door zone, open the door or open the door lock circuit, then open the
door zone circuit, and observe A, B, and C above. NOTE: The controller’s safety
circuits should require a manual reset before the “ROPE GRIPPER™” reopens.
3) Manually open the governor overspeed switch and observe A, B, and C above. NOTE:
The governor will require a manual reset after this test. The controller’s safety circuits
should then require a manual reset before the “ROPE GRIPPER™” reopens.
SUGGESTED CONTROLLER CIRCUITS
NOTE: The following describes circuits to meet code requirements and prevent nuisance
shutdowns. The controls circuit can also be configured so that the Rope Gripper also responds to
other errors.
Both the B44 and A17.1-2000 Codes and more recent codes require new circuitry for
activation of the “ROPE GRIPPER™”. It is the controller manufacturer’s responsibility to
provide proper circuitry that meets all applicable codes and laws for operating this device.
The function of the “ROPE GRIPPER™” when applied is to clamp the ropes and stop the
car. We recommend that the “ROPE GRIPPER™” is activated when an overspeed occurs or
when the car leaves the floor (door zone) with the doors open (hoistway door unlocked
and/or the car gate switch open). If the doors happen to open while the car is between floors,
the “ROPE GRIPPER™” need not be activated.
It is suggested that a manual reset of the Rope Gripper require a minimum of 10 seconds of
constant pressure activation, to allow the mechanic resetting the Rope Gripper to quickly
react to an unsafe condition. In other words, it is recommended that the reset control acts as a
constant pressure switch for the first ten seconds, before latching in the run condition after
ten seconds.
It is suggested that if the elevator controller has a monitor function for the machine brake,
that the rope gripper be activated immediately on sensing a stuck brake condition, rather than
waiting for unintended motion to occur.
The suggested circuits shown in Diagram 1 & Diagram 2 activate the “ROPE GRIPPER™”
by opening contacts RG1, RG2, DZ1, and DZ2. Relay coils RG1, RG2, DZ1 and DZ2 are
controlled by the Governor overspeed switch (GOS) and function blocks GRC1, GRC2,
DZC1, and DZC2, respectively.
GRC1 DESCRIPTION
If the car is not in the door zone when main line power turns “ON”, or when switching from
“Inspection” to “Normal Operation”, or when resetting the Governor overspeed switch; allow
a time interval, signal the door closure, and when the car gate or door interlock contact
makes, energize RG1.
Anytime the car is in the door zone (“Inspection” or “Normal Operation”), RG1 is de-
energized when both the car gate contact and door interlock contact are opened. Should the
car now leave the door zone (unintended motion), power to the “ROPE GRIPPER™” is
removed and the “ROPE GRIPPER™” is activated. In the door zone, when the car gate
contact or door interlock contact is made, energize RG1. If the car should leave the door
zone with RG1 energized then “ROPE GRIPPER™” activation is prevented. RG1 should
remain energized even if both the car and hoistway doors are opened while between floors.
When the car is in the door zone again, RG1 should function as above.
GRC2 DESCRIPTION
Redundant circuits are required by the 2000 A17.1 and B44 Codes. Circuits for RG2 function
identical to RG1 except separate logic for the timing function, door locks, gate switch and door
zone should be used. DZC1 logic could be used for circuits of RG1 and DZC2 for circuits of
RG2. (See NOTE in Diagram 3)

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Diagram 1
*See Diagram 4 or 5 for Rope Gripper circuits
Diagram 2
Diagram 3
NOTE: If force guided relays are used for RG1, RG2, DZ1, and DZ2, use this diagram.
622
G
A
2
622GA1
622GA2
3 A
for
622
G
A
2
622GA1
Omit for
622
G
A
1

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DZC1 DESCRIPTION
DZ1 is energized in the door zone and de-energized outside of the door zone (See Diagram 3
NOTE). Maximum door zone is 10"
DZC2 DESCRIPTION
Circuits for DZ2 function are identical to DZ1 except a separate door zone signal is utilized.
If the above circuits (Diagram 3)do not make contact when required, the elevator must be
prevented from running. If other types of relays are used, circuits must prove that contacts from
RG1, RG2, DZ1 and DZ2 are functioning properly and when a failure is detected the elevator
must be prevented from running.
HOLLISTER-WHITNEY “ROPE GRIPPER™” OPERATION
NORMAL OPERATION
Power to the “ROPE GRIPPER™” is constantly maintained. When in the door zone DZ1 and
DZ2 provide power to the “ROPE GRIPPER™” RG1 and RG2 energize when the doors
close. As the car leaves the floor DZ1 and DZ2 de-energize, power to the “ROPE
GRIPPER™” is maintained through RG1 and RG2. When approaching a new floor DZ1 and
DZ2 again energize, when the doors open RG1 and RG2 de-energize.
OVERSPEED
When an overspeed is detected, the Governor overspeed switch opens, additional overspeed
can be detected by use of an encoder or tachometer that detects the speed of the elevator (Not
the motor or worm shaft of a geared elevator). When detected, relays RG1, RG2, DZ1 and
DZ2 de-energize. This removes power from the “ROPE GRIPPER™”, clamping the ropes
and stopping the car.
OVERSPEED RESET
Overspeed reset is accomplished by resetting the Governor overspeed switch and the elevator
control circuits. Refer to and follow the controller manufacturer’s instructions for “ROPE
GRIPPER™” reset.
IMPORTANT: The code requires that the “ROPE GRIPPER™” be manually reset if it
is triggered by fault. It is intended that a qualified technician inspect for and correct any
malfunction before the car is placed back into service. A dangerous situation can be
produced if a “ROPE GRIPPER™” is manually reset without first correcting the cause of
the fault. E.g.: If there has been a brake failure that has not been corrected, when the
“ROPE GRIPPER™” is reset, it is very likely that the car will fall either up or down.
UNINTENDED MOTION
When at the floor with the doors open, relays RG1 and RG2 are de-energized and relays DZ1
and DZ2 are energized. If the car leaves the floor, DZ1 and DZ2 de-energize, removing
power from the “ROPE GRIPPER™”, clamping the ropes and stopping the car.
UNINTENDED MOTION RESET
Unintended motion reset is accomplished through elevator control circuits. Refer to and
follow the control manufacturer’s instructions for “ROPE GRIPPER™” reset.
IMPORTANT: The code requires that the “ROPE GRIPPER™” be manually reset if it
is triggered by fault. It is intended that a qualified technician inspect for and correct any
malfunction before the car is placed back into service. A dangerous situation can be
produced if a “ROPE GRIPPER™” is manually reset without first correcting the cause of
the fault. E.g. if there has been a brake failure that has not been corrected, when the
“ROPE GRIPPER™” is reset, it is very likely that the car will fall either up or down.

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MANUAL OPENING
During a power failure the “ROPE GRIPPER™” will activate. When power is restored the
“ROPE GRIPPER™” will automatically reload and put the elevator back into service.
If the car is to be moved during a power outage, manually open the “ROPE GRIPPER™” as
follows:
1. First confirm the OMS lever is on Manual Reset. (Follow the procedure of "LINING
REPLACEMENT or SHIM ADJUSTMENT" #2 on page 7)
2. Make sure machine brake is functioning properly (prevents any car movement). Use an
8mm socket wrench (not provided) to turn either one of the hex shafts in the designated
direction until the brake is loosened on the ropes and the car is free to move (see Figure
7). IMPORTANT: Use wrench to open gripper only as far as is necessary to allow car
movement. Opening further may damage the gripper.
3. To manually close the gripper, simply push the spring plunger and turn the OMS lever to
Manual Reset. This should close the gripper. WARNING: Keep hands clear of the
closing the Rope Gripper. Forces created can crush fingers.
TEST PROCEDURE FOR COMPLIANCE WITH
CANADIAN CAN/CSA B44 AND ASME A17.1-2000, & EN81
SAFETY CODE FOR ELEVATORS
1) POWER INTERRUPTION TEST
Run the car in slow speed and turn the OMS lever to Reset Release. This will activate the
“ROPE GRIPPER™” causing it to clamp the ropes and stop the car. When the “ROPE
GRIPPER™” is activated, the “ELEVATOR CAN RUN” contacts will open and signal the
controls to interrupt power to the driving motor and machine brake.
2) ASCENDING CAR OVERSPEED TEST
With an empty car, overspeed the car in the “UP” direction while keeping the machine brake
open. The Governor overspeed switch will activate the “ROPE GRIPPER™”. The “ROPE
GRIPPER™” will stop the car before the counterweight strikes the buffer or, at least, reduce
the car speed to the speed for which the buffer is designed. If it is impractical to overspeed
the car, run the empty car up at high speed with the machine brake held open and manually
trip the Governor overspeed switch. The “ROPE GRIPPER™” will cause the car to slow
down and stop. The Governor can then be tested to make sure the Governor switch opens at
the correct overspeed setting.
3) UNCONTROLLED LOW SPEED TEST
CAUTION: DO NOT ALLOW ANYONE TO ENTER
THE ELEVATOR DURING THIS TEST!!!
With the car level at any floor and the door open, open the machine brake. (With empty car
the elevator moves up, with full load the elevator moves down.) The “ROPE GRIPPER™”
should apply and stop the car within 1220 mm (48"). If the car does not move when the
machine brake is opened, the brake drum or disc can be turned to start the car.
Note: this test can also be performed more safely with the doors closed, and the door
lock circuit opened to simulate an open door.

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Diagram 4 - 622G Rope GripperTM Wiring Schematic (110V)

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Diagram 5 - 622G Rope GripperTM Wiring Schematic (220V)

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“ROPE GRIPPER™” LUBRICATION
The Rope Gripper is shipped with a layer of a general purpose grease lubricant applied to the
cam surfaces, the four movable shoe guides, and inside the gearbox to the gears.
During maintenance, a thin layer of a general purpose grease lubricant may be applied to
these areas if it is found to be lacking.
WIRE ROPE LUBRICATION
Proper lubrication of the ropes will not affect Rope Gripper operation. Use a high friction
lubricant such as Nylube Cable Care # 65 or American Oil Vitalife # 600.
Figure 11 - Overall Dimensions of 622G Rope GripperTM
For further technical assistance, please contact HOLLISTER-WHITNEY directly.
Hollister-Whitney Elevator Corp.
#1 Hollister-Whitney Parkway
Quincy, Illinois 62305
Phone: [phone]
Fax: [phone]
www.hollisterwhitney.com

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622G ROPE GRIPPERTM SERVICE PARTS
Part Number QTY Description Picture
90-033-M 4
BASE
CONNECTING
ARM, EXTERNAL
RETAINING CLIP,
20MM
622-020-M 1 CONNECTING
ARM ASSEMBLY
620-208-01 1 CAPACITOR FOR
220V AC, 50/60 Hz
MOTOR & SCREWS
620-208-02 1
CAPACITOR FOR
110V AC, 50/60 Hz
MOTOR & SCREWS
622-301-1-M 1 MOTOR-CLUTCH
SUB ASSEMBLY
(220V)
620-301-2-M 1 MOTOR-CLUTCH
SUB ASSEMBLY
(110V)
622-303-M 1
CONTACT FORK
ASSEMBLY

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Part Number QTY Description Picture
622-304-M 1
DELAY CIRCUIT
ASSEMBLY &
HARDWARE
622-327-M 1
RACK
CONNECTION, PIN
AND RETAINING
CLIP 8MM
622-326-M 1
MANUAL RESET,
SPRING PLUNGER,
M6X1.0 STEEL
622-306-M 1 CONTACT BLOCK
ASSEMBLY
622-328-M 1 MICROSWITCHES,
OPERATING MODE
SELECTOR

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Part Number QTY
Description Picture
622-307-M 1
MICROSWITCH,
ELEVATOR CAN RUN
LOCKOUT
622-308-M 1
MICROSWITCH,
READY &
EXCESSIVE WEAR
620-242 2 GEAR BOX, WIRE
CLIPS
622-311-M 1 GEAR BOX COVER &
SCREWS
622-309-M 1 ELECTRICAL BOX
COVER, WIRING
DIAGRAM &
SCREWS

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Part Number QTY
Description Picture
620-207-M 1 CABLE GLAND, B-
TYPE SEAL HOLE &
SHORT THREAD
620-204 5 RUBBER GROMMET
622-310-1-M 1 BASE ASSEMBLY,
COVER & SCREWS
220V
622-310-2-M 1 BASE ASSEMBLY,
COVER & SCREWS
110V
622-329-M 1 BRAKE PAD, LINING
ASSEMBLY &
SCREWS
622-330-M 4 SPACERS, 622
LINING, & SCREWS
620-121-M 2 HALF DOG SET
SCREW, M6 X 35